Climatological Report (Annual)
Issued by NWS

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000
CXUS53 KIWX 011744
CLASBN

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1223 PM EST FRI JAN 1 2010

...................................

...THE SOUTH BEND IN CLIMATE SUMMARY FOR THE YEAR OF 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1893 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             109   07/24/1934
 LOW              -22   01/20/1943
                        01/25/1897
HIGHEST            93   06/24        MM      MM       92  09/02
LOWEST            -19   01/16        MM      MM       -7  01/25
AVG. MAXIMUM     57.8              58.7    -0.9     58.2
AVG. MINIMUM     39.4              40.1    -0.7     39.2
MEAN             48.6              49.4    -0.8
DAYS MAX >= 90      4              13.3    -9.3        7
DAYS MAX <= 32     55              43.6    11.4       60
DAYS MIN <= 32    130             122.8     7.2      142
DAYS MIN <= 0      11               7.7     3.3        6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        55.61   1990
 MINIMUM        25.15   1963
TOTALS          41.83             39.70    2.13    46.36
DAILY AVG.       0.12              0.11    0.01     0.13
DAYS >= .01       148             147.8     0.2      160
DAYS >= .10        78              81.8    -3.8       88
DAYS >= .50        25              24.3     0.7       24
DAYS >= 1.00       12               7.9     4.1        8

SNOWFALL (INCHES)
RECORDS
 TOTAL          141.7   5
                        0
                        -26215
TOTALS           55.0              76.5   -21.5     88.6
SINCE 7/1        11.5              27.4   -15.9     33.7
SNOWDEPTH AVG.      1                MM      MM        1
DAYS >= TRACE      63                MM      MM       95
DAYS >= 1.0        22              21.2     0.8       27
GREATEST
 SNOW DEPTH        15   01/15                         11

DEGREE_DAYS
HEATING TOTAL    6418              6294     124     6565
 SINCE 7/1       2381              2369      12     2463
COOLING TOTAL     549               812    -263      729
 SINCE 1/1        549               812    -263      729
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    43/240    DATE  03/08
HIGHEST GUST SPEED/DIRECTION    54/240    DATE  03/08

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR          147
NUMBER OF DAYS PC            126
NUMBER OF DAYS CLOUDY         92

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             30     MIXED PRECIP               1
HEAVY RAIN               38     RAIN                      66
LIGHT RAIN              145     FREEZING RAIN              2
LT FREEZING RAIN         12     HAIL                       0
HEAVY SNOW                3     SNOW                      21
LIGHT SNOW               60     SLEET                      3
FOG                     204     FOG W/VIS <= 1/4 MILE     19
HAZE                     93

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...THE 2009 WEATHER YEAR IN REVIEW FOR SOUTH BEND...

============================ JANUARY ============================

...A COLD AND SNOWY START TO 2009...

DESPITE A RELATIVELY QUIET AND NORMAL START TO THE NEW YEAR AT SOUTH
BEND...THE WEATHER CHANGED QUICKLY. THE SECOND WEEK OF THE MONTH SAW
A RETURN TO TEMPERATURES WELL BELOW NORMAL AND A MAJOR SNOW STORM
THAT WAS THE BEGINNING OF A PERIOD OF VERY COLD TEMPERATURES AND
BRUTAL WIND CHILLS.

A STRONG UPPER LEVEL SYSTEM MOVED THROUGH THE GREAT LAKES ON THE 9TH
AND 10TH. THIS BROUGHT A PERSISTENT BAND OF LIGHT TO MODERATE SNOW
ACROSS NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN. BY THE TIME
THIS SYSTEM EXITED THE AREA...SNOWFALL AMOUNTS HAD ACCUMULATED FROM
6 TO 12 INCHES. SOUTH BEND OFFICIALLY RECORDED 7.1 INCHES OF SNOW
DURING THIS STORM. SEVERAL FAST MOVING CLIPPER SYSTEMS WOULD FOLLOW
EVERY FEW DAYS FOR THE REMAINDER OF THE MONTH. THE FIRST FEW OF
THESE CLIPPERS BROUGHT VERY COLD ARCTIC AIR INTO THE AREA ALONG WITH
STRONG WINDS OF 20 TO 30 MPH. THIS CREATED DEADLY WIND CHILL VALUES
BETWEEN 30 BELOW AND 40 BELOW ZERO BETWEEN THE 14TH AND
17TH...PROMPTING WIND CHILL WARNINGS ACROSS THE ENTIRE REGION FOR
SEVERAL DAYS. TEMPERATURES MODERATED SLIGHTLY BY THE 22ND AND 23RD
BUT ANOTHER ARCTIC INTRUSION OF COLD AIR OCCURRED BY THE 24TH AND
LASTED THROUGH THE END OF THE MONTH.

THE FIRST STRONG ARCTIC COLD FRONT BROUGHT THE COLDEST TEMPERATURES
IN SEVERAL YEARS BETWEEN JANUARY 13TH AND JANUARY 20TH. DURING THIS
PERIOD...7 OUT OF 8 DAYS HAD LOW TEMPERATURES OF ZERO DEGREES OR
COLDER. THE 15TH AND 16TH WERE THE COLDEST DAYS WITH THE LOW
TEMPERATURE ON THE 15TH BEING NEGATIVE 15...WHICH OCCURRED RIGHT AT
MIDNIGHT...AND THE MORNING LOW ON THE 16TH WAS NEGATIVE 19. THE HIGH
TEMPERATURE ON THE 16TH WAS ONLY NEGATIVE 2 DEGREES. THESE WERE THE
COLDEST TEMPERATURES AT SOUTH BEND SINCE 1994 WHEN A LOW TEMPERATURE
OF NEGATIVE 21 OCCURRED ON JANUARY 19TH. THE COLDEST TEMPERATURE
EVER RECORDED AT SOUTH BEND WAS NEGATIVE 22...OCCURRING ON JANUARY
25TH 1897 AND AGAIN ON JANUARY 20TH 1943.

A TOTAL OF 10 DAYS HAD LOW TEMPERATURES OF ZERO OR COLDER THIS
MONTH. THIS TIES AS THE 5TH MOST NUMBER OF DAYS IN JANUARY WITH LOWS
OF ZERO DEGREES OR COLDER. JANUARY 1963 HAD THE MOST AT 16. THE
YEARS 1904...1970 AND 1977 ALSO HAD 10 DAYS WITH LOWS ZERO OR
COLDER. A TOTAL OF 26 DAYS HAD AVERAGE TEMPERATURES BELOW
NORMAL...WITH THE COLDEST DAY BEING JANUARY 16 WHEN THE AVERAGE
TEMPERATURE WAS NEGATIVE 10...33 DEGREES BELOW NORMAL. ALL OF THIS
BITTERLY COLD ARTIC AIR HELPED JANUARY 2009 TO BECOME THE 5TH
COLDEST ON RECORD. THE AVERAGE MONTHLY TEMPERATURE OF 15.6 DEGREES
WAS 7.8 DEGREES BELOW NORMAL.

PRECIPITATION FOR THE MONTH WAS 1.57 INCHES...0.70 INCHES BELOW
NORMAL. DESPITE THE PRECIPITATION BEING BELOW NORMAL...SNOWFALL WAS
ABOVE NORMAL. SOUTH BEND RECORDED 29.4 INCHES OF SNOW...6.2 INCHES
ABOVE THE NORMAL OF 23.2 INCHES. THIS RANKED AS THE 15TH SNOWIEST
JANUARY ON RECORD AT SOUTH BEND. THIS WAS ALSO THE MOST JANUARY
SNOWFALL SINCE 2000 WHEN 37.1 INCHES FELL. HOWEVER...THE YEARS
2003...2004...2005...2007 AND 2008 ALL RECORDED AT LEAST 25 INCHES
OF SNOW. THE SNOWIEST JANUARY ON RECORD WAS 1978 WHEN AN ASTONISHING
86.1 INCHES OF SNOW FELL.

MEASURABLE SNOW FELL ON 18 DAYS...WHICH INCLUDED A STRETCH OF 14
STRAIGHT DAYS WITH MEASURABLE SNOWFALL FROM THE 6TH THROUGH THE
19TH. THE GREATEST SNOW DEPTH FOR THE MONTH WAS RECORDED IN THIS
STRETCH ON JANUARY 15TH WHEN 15 INCHES WAS MEASURED ON THE GROUND.
THERE HAS BEEN AT LEAST ONE INCH OR MORE OF SNOW ON THE GROUND AT
SOUTH BEND REGIONAL AIRPORT SINCE JANUARY 7TH...A STRETCH OF 25
STRAIGHT DAYS.

============================ FEBRUARY ============================

...FEBRUARY WAS WARMER AND WETTER THAN NORMAL AT SOUTH BEND...

FEBRUARY TURNED OUT TO BE THE ONLY MONTH OF THE METEOROLOGICAL
WINTER SEASON...DECEMBER THROUGH FEBRUARY...WITH ABOVE NORMAL
TEMPERATURES AT SOUTH BEND. FEBRUARY WAS ALSO WETTER THAN NORMAL BUT
SNOWFALL WAS BELOW NORMAL FOR THE MONTH. THERE WERE SEVERAL DAYS
WITH MINOR SNOW ACCUMULATIONS AND ONLY ONE RATHER SIGNIFICANT SNOW
EVENT. THERE WERE TWO SIGNIFICANT RAINFALL EVENTS WITH EACH BRINGING
OVER AN INCH OF RAIN AND SOME FLOODING TO PARTS OF THE AREA.

THE AVERAGE MONTHLY TEMPERATURE WAS 28.6 DEGREES...1.3 DEGREES ABOVE
NORMAL. 15 OF THE 28 DAYS EXPERIENCED AN AVERAGE TEMPERATURE ABOVE
NORMAL...WITH 3 DAYS HAVING AN AVERAGE TEMPERATURE MORE THAN 20
DEGREES ABOVE NORMAL. THE WARMEST DAY OF THE MONTH OCCURRED ON THE
10TH WHEN THE HIGH TEMPERATURE HIT 62 DEGREES. THE AVERAGE
TEMPERATURE FOR THIS DAY WAS 55 DEGREES...29 DEGREES ABOVE NORMAL.
IN CONTRAST...13 DAYS HAD AN AVERAGE TEMPERATURE BELOW NORMAL...WITH
THE COLDEST DAY BEING THE 4TH WHEN THE AVERAGE TEMPERATURE WAS 10
DEGREES...15 DEGREES BELOW ZERO. THIS DAY ALSO HAD THE COLDEST LOW
TEMPERATURE FOR THE MONTH WITH A READING OF ZERO. THERE WERE NO DAYS
WITH TEMPERATURES BELOW ZERO AT SOUTH BEND.

PRECIPITATION FOR THE MONTH WAS 3.00 INCHES...1.02 INCHES ABOVE
NORMAL. THE HIGHEST SINGLE DAY PRECIPITATION WAS ON THE 11TH WHEN
1.01 INCHES FELL. A STORM SYSTEM ON THE 26TH AND 27TH PRODUCED 0.96
INCHES OF PRECIPITATION FOR THESE TWO DAYS COMBINED. THESE TWO RAIN
EVENTS MADE UP NEARLY TWO THIRDS OF THE MONTHLY PRECIPITATION.
MEASURABLE PRECIPITATION FELL ON 12 DAYS...WHICH IS NORMAL.

SNOWFALL FOR THE MONTH WAS 12.0 INCHES...3.5 INCHES BELOW THE NORMAL
OF 15.5 INCHES. THE MAJORITY OF THIS SNOWFALL FELL BETWEEN THE 18TH
AND 23RD WHEN 9.7 OF THE 12 INCHES OCCURRED.

============================ MARCH ============================

MARCH BEGAN DRY AND COLD AT SOUTH BEND BUT THE WEATHER PATTERN
QUICKLY CHANGED TO WARM AND WET BY THE SECOND WEEK. AS A MATTER OF
FACT...RECORD RAINFALL AND FLOODING OCCURRED ONCE AGAIN ACROSS
NORTHERN INDIANA AS TWO SIGNIFICANT STORM SYSTEMS BROUGHT HEAVY
RAINFALL TO THE REGION. DURING THE 4 DAY PERIOD FROM MARCH 7TH
THROUGH MARCH 10TH...3.93 INCHES OF RAIN WAS RECORD AT SOUTH BEND
REGIONAL AIRPORT. MANY RURAL AREAS SOUTH OF SOUTH BEND RECEIVED
BETWEEN 4 AND 8 INCHES OF RAINFALL DURING THIS PERIOD. MOST RIVERS
WENT ABOVE FLOOD STAGE FOLLOWING THIS HEAVY RAIN AND SEVERAL RIVERS
HAD MAJOR OR RECORD FLOODING. TEMPERATURES HAD BEEN IN THE 50S AND
60S LEADING UP TO THIS HEAVY RAINFALL AND QUICKLY DROPPED BACK INTO
THE 20S AND 30S IN ITS WAKE.

THE FIRST TORNADOES OF THE YEAR FOR THE NWS NORTHERN INDIANA COUNTY
WARNING AREA OCCURRED ON MARCH 8TH AS A POWERFUL STORM SYSTEM MOVED
THROUGH THE GREAT LAKES. AN EF0 TORNADO OCCURRED NEAR COLUMBIA CITY
INDIANA WHILE ANOTHER EF0 TORNADO OCCURRED WEST OF DEFIANCE OHIO.

THE MIDDLE PORTION OF MARCH WAS DRY AND RATHER WARM WITH GENERALLY
ABOVE NORMAL TEMPERATURES. THIS DRY STRETCH ALLOWED MANY AREA LAKES
AND RIVERS TO SLOWLY RECEDE AFTER THE RECORD FLOODING EARLIER IN THE
MONTH. WET WEATHER RETURNED DURING THE LAST WEEK OF MARCH AS SEVERAL
STORM SYSTEMS MOVED THROUGH THE GREAT LAKES AND OHIO VALLEY REGION.
FORTUNATELY THIS RAIN DID NOT CAUSE ANY RENEWED FLOODING BUT DID
SATURATE THE SOILS AGAIN.

MEASURABLE SNOWFALL OCCURRED ON ONLY ONE DAY...MARCH 29TH...BEHIND A
STRONG LOW PRESSURE SYSTEM. A WET AND WARM GROUND KEPT ACCUMULATIONS
AT A MINIMUM WITH ONLY A TENTH OF AN INCH RECORDED AT SOUTH BEND
REGIONAL AIRPORT. MORE ACCUMULATION DID OCCUR JUST WEST AND NORTH OF
INDIANA WHERE SEVERAL INCHES OF ACCUMULATION WAS RECORDED.

THE AVERAGE MONTHLY TEMPERATURE OF 40.1 DEGREES WAS 2.6 DEGREES
ABOVE NORMAL. THE HIGHEST TEMPERATURE WAS 72 ON THE 17TH AND THE
COLDEST TEMPERATURE WAS 5 ABOVE ZERO ON THE THIRD. PRECIPITATION FOR
THE MONTH WAS 5.55 INCHES...2.66 INCHES ABOVE NORMAL. THIS RANKS AS
THE 4TH WETTEST MARCH ON RECORD AT SOUTH BEND. MEASURABLE
PRECIPITATION OCCURRED ON JUST 7 DAYS DURING THE MONTH...BUT ON
THREE OF THESE SEVEN DAYS THE PRECIPITATION RECORDED WAS OVER ONE
INCH. SNOWFALL WAS JUST ONE TENTH OF AN INCH...8.6 INCHES BELOW
NORMAL. THIS TIES AS THE SECOND LEAST SNOWIEST MARCH ON RECORD.
THERE WERE ONLY THREE DAYS DURING THE MONTH IN WHICH ANY SNOWFALL
WAS RECORDED.

SOUTH BEND BROKE THREE PRECIPITATION RECORDS ON MARCH 7TH...8TH AND
10TH WITH RESPECTIVE AMOUNTS OF 1.13...1.39 AND 1.41 INCHES OF
RAINFALL.

============================ APRIL ============================

...NEAR NORMAL TEMPERATURES AND PRECIPITATION FOR APRIL...

DESPITE A FEW INCHES OF SNOW AND WHAT SEEMED LIKE AN OVERALL WET AND
COLD MONTH...APRIL ACTUALLY ENDED UP BEING NEAR NORMAL FOR
PRECIPITATION AND TEMPERATURES. THE TEMPERATURES VARIED DRASTICALLY
DURING THE MONTH...WITH BOTH RECORD COLD AND RECORD WARM HIGH
TEMPERATURES OCCURRING. OVER HALF THE DAYS IN THE MONTH HAD SOME
FORM OF PRECIPITATION...WITH FOUR DAYS SEEING AT LEAST A TRACE OF
SNOW AND TWO DAYS HAVING MEASURABLE SNOWFALL.

THE MONTH BEGAN MILD AT SOUTH BEND WITH HIGH TEMPERATURES IN THE 50S
AND 60S ON THE FIRST TWO DAYS. HOWEVER...A STRONG STORM SYSTEM THAT
ALLOWED THE WARMER TEMPERATURES TO SPREAD INTO THE REGION MOVED INTO
THE GREAT LAKES AND BROUGHT WET AND COLD CONDITIONS TO NORTHERN
INDIANA. THIS SYSTEM WAS COLD ENOUGH TO TURN THE RAIN INTO SNOW AS
IT BEGAN TO MOVE EAST. SOUTH BEND RECORDED AN INCH OF SNOWFALL ON
BOTH THE 5TH AND 6TH WITH HIGH TEMPERATURES ONLY IN THE 30S. SOME
LOCATIONS JUST NORTH AND EAST OF SOUTH BEND RECEIVED BETWEEN 3 AND 6
INCHES OF SNOW. WINTER WEATHER ADVISORIES WERE ISSUED FOR THIS
SPRING SNOW STORM.

TEMPERATURES CONTINUED TO SWING DRAMATICALLY OVER THE REMAINDER OF
THE MONTH WITH HIGH TEMPERATURES RANGING FROM THE LOWER 40S ON THE
13TH...14TH AND 21ST...TO THE LOWER AND MIDDLE 80S ON THE
24TH...25TH...AND 26TH. A RECORD COLD MAXIMUM TEMPERATURE WAS SET ON
THE 21ST WHEN THE HIGH ONLY REACHED 43 DEGREES. THIS BROKE THE
PREVIOUS RECORD OF 44 DEGREES SET IN 1901. JUST 3 DAYS LATER...A
RECORD WARM HIGH TEMPERATURE RECORD WAS TIED WHEN SOUTH BEND REACHED
85 DEGREES ON THE 24TH.

THE AVERAGE MONTHLY TEMPERATURE OF 48.4 DEGREES WAS 0.1 DEGREES
ABOVE NORMAL. THE HIGHEST TEMPERATURE WAS 85 ON THE 21ST AND THE
COLDEST TEMPERATURE WAS 26 DEGREES ON THE 8TH AND 12TH.
PRECIPITATION FOR THE MONTH WAS 3.57 INCHES...0.05 INCHES BELOW
NORMAL. MEASURABLE PRECIPITATION OCCURRED ON 16 DAYS DURING THE
MONTH. SNOWFALL FOR THE MONTH WAS 2.0 INCHES...JUST 0.3 INCHES ABOVE
THE NORMAL OF 1.7 INCHES.

============================ MAY ============================

...NEAR NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION...

THE MONTH OF MAY AT SOUTH BEND WAS NEAR NORMAL WITH RESPECT TO
TEMPERATURES BUT PRECIPITATION WAS BELOW NORMAL. THE RELATIVELY
QUIET SEVERE WEATHER SEASON CONTINUED THROUGH MAY WITH ONLY A FEW
WARNINGS BEING ISSUED ACROSS THE AREA.

THE AVERAGE MONTHLY TEMPERATURE WAS 59.2 DEGREES...JUST 0.4 DEGREES
BELOW NORMAL. THE HIGHEST TEMPERATURE WAS 83 ON THE 20TH AND 21ST.
THE COLDEST TEMPERATURE WAS 34 ON THE 18TH WHEN A HEAVY FROST
COVERED THE GROUND.

PRECIPITATION FOR THE MONTH WAS BELOW NORMAL WITH 2.82 INCHES BEING
RECORDED...0.68 INCHES BELOW NORMAL. MEASURABLE PRECIPITATION
OCCURRED ON 9 DAYS...WITH NEARLY 2 INCHES OF RAIN OCCURRING ON JUST
3 DAYS FROM MAY 13TH THROUGH THE 15TH.

THERE WAS NO SNOWFALL RECORDED FOR THE MONTH OF MAY. THE TOTAL
SNOWFALL FOR THE 2008-2009 WINTER SEASON WAS 77.2 INCHES AT SOUTH
BEND...WHICH WAS JUST 0.7 INCHES ABOVE THE NORMAL OF 76.5 INCHES.

============================ JUNE ============================

...NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION...

TEMPERATURES FOR THE MONTH OF JUNE WERE NEAR NORMAL AT SOUTH BEND
REGIONAL AIRPORT WHILE PRECIPITATION FOR THE MONTH WAS ABOVE NORMAL.

WHILE THE OVERALL AVERAGE MONTHLY TEMPERATURE OF 69 DEGREES WAS
RIGHT AT NORMAL...ACTUAL DAILY TEMPERATURES VARIED SIGNIFICANTLY
DURING THE MONTH. HIGH TEMPERATURES RANGED FROM THE MIDDLE 60S TO
THE LOWER 90S...AND LOW TEMPERATURES RANGED FROM THE LOWER 40S TO
LOWER 70S. THE WARMEST DAY OF THE MONTH WAS ON THE 24TH WITH A HIGH
OF 93. IN CONTRAST...THE HIGH TEMPERATURE ON JUNE 13TH WAS ONLY 65.
THE COLDEST MINIMUM TEMPERATURE WAS 41 ON THE 5TH WHILE THE WARMEST
MINIMUM TEMPERATURE WAS 73 ON THE 22ND...23RD AND 24TH. THERE WERE
16 DAYS WITH AVERAGE TEMPERATURES BELOW NORMAL...12 DAYS WITH
AVERAGE TEMPERATURE ABOVE NORMAL...AND 2 DAYS WITH NORMAL
TEMPERATURES.

PRECIPITATION FOR JUNE WAS WELL ABOVE NORMAL WITH 6.76 INCHES
RECORDED...2.57 INCHES ABOVE NORMAL. THERE WERE 10 DAYS WITH
MEASURABLE PRECIPITATION AND 4 OF THESE DAYS HAD OVER ONE HALF INCH
WHILE 2 DAYS RECEIVED OVER AN INCH OF RAINFALL. THE MOST RAIN FOR A
SINGLE CALENDAR DAY FELL ON THE 11TH WITH 2.81 INCHES. THIS BROKE A
RECORD FOR THE DAILY RAINFALL TOTAL...SHATTERING THE PREVIOUS RECORD
OF 1.40 INCHES SET IN 2001.

FOR THE FIRST SIX MONTHS OF THE YEAR THE TOTAL PRECIPITATION AT
SOUTH BEND HAS BEEN 23.27 INCHES...4.82 INCHES ABOVE NORMAL.

IT WAS ANOTHER RELATIVELY QUIET MONTH WITH RESPECT TO SEVERE
WEATHER. JUNE 19TH WAS THE MOST ACTIVE DAY WITH NUMEROUS SEVERE
THUNDERSTORM WARNINGS AND A FEW TORNADO WARNINGS BEING ISSUES ACROSS
NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN. SEVERE THUNDERSTORMS
ON THE 19TH PRODUCED A PATH OF WIND DAMAGE WITH NUMEROUS TREES AND
POWERLINES REPORTED DOWN FROM 60 TO 70 MPH WINDS. LARGE HAIL UP TO
GRAPEFRUIT SIZE WAS ALSO REPORTED IN FULTON COUNTY INDIANA.

============================ JULY ============================

...RECORD COLDEST JULY AT SOUTH BEND...

THIS JULY RANKS AS THE COLDEST JULY ON RECORD IN THE SOUTH BEND
AREA. OFFICIAL RECORDS FOR THE SOUTH BEND AREA BEGAN IN 1893. THE
AVERAGE MONTHLY TEMPERATURE FOR JULY 2009 WAS 68.3 DEGREES. THE
PREVIOUS RECORD COLD JULY WAS 68.5 SET IN 1996. A PERSISTENT TROUGH
OF LOW PRESSURE ACROSS EASTERN CANADA AND THE EASTERN UNITED STATES
HAS HELPED TO FUNNEL COOL CANADIAN AIR INTO THE GREAT LAKES AND OHIO
VALLEY FOR MOST OF THE SUMMER...WHILE KEEPING THE HOT AND HUMID
WEATHER WELL TO OUR WEST. IN ADDITION TO THE COOLER THAN NORMAL
AIR...BELOW NORMAL DEW POINTS HAVE HELPED MAKE THE SUMMER FEEL MORE
LIKE FALL WITH VERY LOW BUT COMFORTABLE RELATIVE HUMIDITIES.

IT HAS BEEN SO COOL THAT ON TWO SEPARATE OCCASIONS RARE JULY LAKE
EFFECT RAIN SHOWERS OCCURRED ACROSS SOUTHWEST LOWER MICHIGAN AND
NORTHWEST INDIANA. THIS OCCURRED AT THE BEGINNING OF JULY ON THE 1ST
AND 2ND AND AGAIN IN MID JULY AROUND THE 18TH. ON BOTH
OCCASIONS...HIGH TEMPERATURES REMAINED IN THE 60S AND LOWER 70S
ACROSS THE AREA. TEMPERATURES IN THE LOWER PART OF THE ATMOSPHERE
WERE COLD ENOUGH TO HELP GENERATE LAKE EFFECT RAIN SHOWERS OVER THE
RELATIVELY WARMER WATERS OF LAKE MICHIGAN.

THE AVERAGE MONTHLY TEMPERATURE WAS 68.3 DEGREES...4.7 DEGREES BELOW
NORMAL. THE HIGHEST TEMPERATURE WAS 86 DEGREES ON THE 15TH AND THE
COOLEST TEMPERATURE WAS 49 ON THE 14TH. THE LAST TIME THE HIGHEST
TEMPERATURE IN JULY WAS JUST 86 DEGREES WAS IN JULY 2000...ALL OTHER
JULY HIGHEST TEMPERATURES ON RECORD HAD A HIGH TEMPERATURES OF AT
LEAST 87 DEGREES. THE AVERAGE HIGH TEMPERATURE THIS MONTH WAS 77.9
DEGREES...WHICH IS A RECORD FOR THE COOLEST AVERAGE HIGH
TEMPERATURE. THE AVERAGE MONTHLY LOW TEMPERATURE WAS 58.6 DEGREES
AND THIS RANKED AS THE 5TH COOLEST FOR AVERAGE LOW TEMPERATURES.

ONLY 3 OF THE 31 DAYS OF JULY 2009 HAD AN AVERAGE TEMPERATURE ABOVE
NORMAL. JULY 15TH AND 28TH WERE THE WARMEST DAYS OF THE MONTH WITH
AN AVERAGE OF 75...JUST 2 DEGREES ABOVE NORMAL. IN CONTRAST...THERE
HAVE BEEN 4 DAYS WITH THE AVERAGE TEMPERATURE 10 TO 11 DEGREES BELOW
NORMAL. THE COLDEST DAY OF THE MONTH WAS JULY 19TH WITH A HIGH OF
ONLY 70 AND A LOW OF 54 FOR AN AVERAGE TEMPERATURE OF 62...11
DEGREES BELOW NORMAL. SOUTH BEND ALSO BROKE RECORDS FOR COOLEST HIGH
TEMPERATURES ON 3 SEPARATE DAYS THIS MONTH. JULY 1ST...17TH AND 18TH
ALL HAD RECORD COOL HIGH TEMPERATURES.

COLD CANADIAN AIR COUPLED WITH ABOVE NORMAL CLOUD COVER WERE
THE MAIN REASONS FOR KEEPING TEMPERATURES WELL BELOW NORMAL.
PRECIPITATION FOR THE MONTH WAS ACTUALLY BELOW NORMAL DESPITE THE
INCREASED CLOUDINESS AND COOLER TEMPERATURES. SOUTH BEND RECORDED
2.64 INCHES OF RAINFALL...1.09 INCHES BELOW NORMAL.

THE SUMMER MONTHS OF JUNE AND JULY HAVE BEEN WELL BELOW NORMAL FOR
AVERAGE TEMPERATURES. 17 OUT OF 30 DAYS IN JUNE HAD AN AVERAGE
TEMPERATURE AT OR BELOW NORMAL WHILE JULY SAW AN IMPRESSIVE 28 OUT
OF 31 DAYS WITH AVERAGE TEMPERATURES AT OR BELOW NORMAL.

============================ AUGUST ============================

...COOL AND WET AUGUST AT SOUTH BEND...

WHILE AUGUST WAS NOT NEAR AS COOL AS JULY...IT STILL ENDED WITH
BELOW NORMAL TEMPERATURES AND PRECIPITATION THAT WAS MUCH ABOVE
NORMAL.

THE AVERAGE MONTHLY TEMPERATURE WAS 69.3 DEGREES...1.7 DEGREES BELOW
NORMAL. THE AVERAGE HIGH TEMPERATURE WAS 78.5 WHILE THE AVERAGE LOW
TEMPERATURE WAS 60.0. THERE WAS A STRETCH OF 12 STRAIGHT DAYS WITH
HIGH TEMPERATURES AT OR ABOVE 80 DEGREES...WHICH WAS THE LONGEST
STREAK OF THE SUMMER. HOWEVER...21 OUT OF 31 DAYS EXPERIENCED
AVERAGE TEMPERATURES AT OR BELOW NORMAL AND THERE WERE ONLY 2 DAYS
WITH AVERAGE TEMPERATURES MORE THAN 10 DEGREES ABOVE NORMAL. A
RECORD COLD HIGH TEMPERATURE OCCURRED ON AUGUST 22ND WHEN THE HIGH
ONLY REACHED 64 DEGREES.

THE HIGHEST TEMPERATURE OF THE MONTH WAS 92 ON THE 9TH AND 16TH. THE
COOLEST TEMPERATURE OF THE MONTH WAS ON THE MORNING OF THE 31ST WHEN
THE LOW TEMPERATURE WAS A CHILLY 43 DEGREES...JUST 3 DEGREES WARMER
THAN THE RECORD LOW FOR THAT DATE.

AUGUST PRECIPITATION WAS MUCH ABOVE NORMAL WITH 7.08 INCHES
FALLING...WHICH IS 3.10 INCHES ABOVE NORMAL. THIS RANKS AS THE 6TH
WETTEST AUGUST ON RECORD. THERE WERE 3 DAYS WITH MORE THAN ONE INCH
OF RAINFALL. A LARGE PORTION OF THIS MONTHLY RAINFALL TOTAL OCCURRED
DURING THE MIDDLE OF THE MONTH. BETWEEN AUGUST 16TH AND
22ND...NEARLY 70 PERCENT OF THE MONTHS TOTAL RAINFALL OCCURRED. 4.90
INCHES OF RAIN FELL DURING THIS PERIOD...WITH A SINGLE DAILY RECORD
RAINFALL OF 2.70 INCHES FALLING ON AUGUST 17TH. MANY AREAS SOUTH AND
EAST OF SOUTH BEND RECORDED EVEN MORE RAINFALL ON THE 17TH...WITH
SOME PARTS OF SOUTHERN ELKHART AND NORTHERN KOSCIUSKO COUNTIES
RECEIVING OVER 8 INCHES OF RAIN.

============================ SEPTEMBER ============================

...A SEASONABLY WARM BUT VERY DRY SEPTEMBER...

AFTER A RELATIVELY COOL AND WET SUMMER...SEPTEMBER EXPERIENCED
SEASONABLE TEMPERATURES BUT VERY DRY CONDITIONS IN THE SOUTH BEND
AREA. THIS WAS A COMPLETE REVERSAL FROM SEPTEMBER 2008 WHICH WAS THE
WETTEST SEPTEMBER AND WETTEST MONTH EVER ON RECORD AT SOUTH BEND
WITH OVER 10 INCHES OF RAIN.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 63.9 DEGREES...0.5 ABOVE
NORMAL. THROUGH THE 27TH OF THE MONTH...EVERY DAY BUT ONE HAD A HIGH
TEMPERATURE OF AT LEAST 70 DEGREES AND 4 DAYS WERE AT OR ABOVE 80
DEGREES. THE 28TH THROUGH THE 30TH SAW TEMPERATURES DROP TO BELOW
NORMAL AS A STRONG AUTUMN COLD FRONT BLASTED THE AREA WITH VERY
STRONG WINDS AND SEASONABLY COOL TEMPERATURES. THE HIGHEST
TEMPERATURE OF THE MONTH WAS 82 ON THE 15TH AND THE COLDEST
TEMPERATURE WAS 37 ON THE 30TH.

IT WAS A VERY DRY MONTH AT SOUTH BEND AS THE MONTHLY RAINFALL TOTAL
WAS ONLY 0.48 INCHES...3.31 INCHES BELOW NORMAL. THIS RANKS AS THE
4TH DRIEST SEPTEMBER ON RECORD AND THE DRIEST SEPTEMBER SINCE 1979.

THERE WERE MANY OTHER PARTS OF NORTHERN INDIANA AND SOUTHWEST LOWER
MICHIGAN WHERE MONTHLY RAINFALL TOTALS DID NOT REACH ONE INCH.
RAINFALL WAS GENERALLY SCATTERED THROUGH THE MONTH WHICH RESULTED IN
SOME AREAS SEEING SIGNIFICANTLY MORE RAIN THAN OTHERS. THE GREATEST
SINGLE DAY RAINFALL TOTAL AT SOUTH BEND THIS MONTH WAS ONLY 0.22
INCHES ON THE 22ND. MEASURABLE RAIN FELL ON JUST 7 DAYS.

============================ OCTOBER ============================

...A VERY COOL AND WET OCTOBER...

THE FIRST HALF OF OCTOBER FELT MORE LIKE NOVEMBER AS TEMPERATURES
AVERAGED WELL BELOW NORMAL DURING THE FIRST 18 DAYS OF THE MONTH. IT
WAS ALSO A RATHER WET MONTH AS PRECIPITATION WAS ABOVE NORMAL AND
OCCURRED ON ALL BUT 4 DAYS OF THE MONTH.

THE FIRST 18 DAYS OF OCTOBER AT SOUTH BEND REGIONAL AIRPORT HAD
AVERAGE TEMPERATURES BELOW NORMAL. NINE OF THE 18 DAYS AVERAGED 10
OR MORE DEGREES BELOW NORMAL...WITH A STRETCH OF CONSECUTIVE DAYS
FROM OCTOBER 10TH THROUGH THE 17TH ALL HAVING AVERAGE TEMPERATURES
AT LEAST 10 DEGREES BELOW NORMAL. THE COLDEST DAY OF THE MONTH WAS
OCTOBER 11TH WITH A HIGH OF 46 AND A LOW OF 30 FOR AN AVERAGE
TEMPERATURE OF 38...16 DEGREES BELOW NORMAL. THE WARMEST TEMPERATURE
OF THE FIRST 18 DAYS OF THE MONTH WAS ONLY 61 DEGREES...OCCURRING ON
THE 1ST...5TH AND 6TH. IT WAS NOT UNTIL OCTOBER 19TH THAT THE MONTH
HAD ITS FIRST DAY WITH AN AVERAGE TEMPERATURE ABOVE NORMAL.

THE FINAL 13 DAYS OF THE MONTH WERE CLOSER TO NORMAL WITH ALL BUT
ONE OF THESE DAYS HAVING AN AVERAGE TEMPERATURE ABOVE NORMAL.
OCTOBER 21ST SAW THE FIRST AND ONLY 70 DEGREE TEMPERATURE OF THE MONTH
AND THE AVERAGE TEMPERATURE ON THIS DAY WAS 62...12 DEGREES ABOVE
NORMAL.

THE WARMING TREND AT THE END OF THE MONTH CERTAINLY HELPED BRING THE
MONTHLY AVERAGE TEMPERATURE BACK CLOSER TO NORMAL. HOWEVER...IT
STILL REMAINED A BELOW NORMAL MONTH AS THE AVERAGE MONTHLY
TEMPERATURE WAS 48.8 DEGREES...3.3 DEGREES BELOW NORMAL. THIS RANKS
AS THE 9TH COOLEST OCTOBER ON RECORD AT SOUTH BEND. THE WARMEST
TEMPERATURE WAS ON THE 21ST WHEN THE HIGH WAS 70. THE LOWEST
TEMPERATURE WAS ON THE 11TH WHEN THE LOW WAS 30.

OCTOBER PRECIPITATION WAS ABOVE NORMAL AT SOUTH BEND. THE MONTHLY
TOTAL WAS 5.16 INCHES...1.89 INCHES ABOVE NORMAL. PRECIPITATION
OCCURRED ON 27 DAYS WITH MEASURABLE PRECIPITATION OCCURRING ON 18
DAYS. WHILE THIS WAS A WET MONTH...IT ONLY RANKED AS THE 14TH WETTEST
OCTOBER ON RECORD.

THE FIRST SNOWFLAKES OF THE SEASON OCCURRED ON OCTOBER 15TH. THERE
WAS NOT ENOUGH SNOW TO BE CONSIDERED MEASURABLE THOUGH AS ONLY A
TRACE WAS RECORDED.

============================ NOVEMBER ============================

...A MILD AND DRY NOVEMBER...

AFTER AN OCTOBER THAT WAS VERY COOL AND WET...NOVEMBER WAS MILD AND
DRY WHICH MADE IT FEEL MORE LIKE OCTOBER. OTHER THAN OCCASIONAL
SYSTEMS THAT PRODUCED RAINFALL...THE ONLY OTHER SIGNIFICANT WEATHER
WAS DENSE FOG ON A FEW MORNINGS IN THE LATTER HALF OF THE MONTH.

THE AVERAGE MONTHLY TEMPERATURE AT SOUTH BEND REGIONAL AIRPORT WAS
44.2 DEGREES...4.1 DEGREES ABOVE NORMAL. THIS RANKS AS THE 13TH
WARMEST NOVEMBER ON RECORD FOR THE SOUTH BEND AREA. THIS AVERAGE
TEMPERATURE WAS ONLY 4.6 DEGREES COOLER THAN THE ACTUAL AVERAGE
TEMPERATURE FOR OCTOBER WHICH WAS 48.8 DEGREES...3.3 DEGREES BELOW
NORMAL. THE HIGHEST TEMPERATURE FOR THE MONTH WAS 70 DEGREES ON THE
8TH. THIS WAS THE HIGHEST TEMPERATURE SINCE OCTOBER 21ST WHEN THE
HIGH WAS ALSO 70 DEGREES. THE LOWEST TEMPERATURE FOR THE MONTH WAS
24 ON THE 12TH.

THERE WERE ALSO ONLY 614 HEATING DEGREE DAYS IN
NOVEMBER...117 BELOW NORMAL. THERE WERE 495 HEATING DEGREE DAYS IN
OCTOBER...102 ABOVE NORMAL FOR THAT MONTH.

NOVEMBER CERTAINLY FELT WARMER THAN OCTOBER...IN PART DUE TO
MORE DAYS WITH SUNSHINE AND SEVERAL WEEKENDS WITH SUNSHINE AND
NEARLY IDEAL AUTUMN WEATHER. THERE WERE 13 DAYS IN WHICH SKIES WERE
CLEAR OR MOSTLY CLEAR...10 DAYS THAT WERE CONSIDERED PARTLY
CLOUDY...AND ONLY 7 DAYS OF CLOUDY IN NOVEMBER. IN CONTRAST...
OCTOBER 2009 ONLY HAD 2 DAYS THAT WERE CONSIDERED CLEAR OR MOSTLY
CLEAR...17 DAYS OF PARTLY CLOUDY AND 12 DAYS OF CLOUDY.

THE MONTH WAS VERY DRY WITH ONLY 1.32 INCHES OF PRECIPITATION...2.07
INCHES BELOW NORMAL. THIS TIED WITH 1999 AS THE 5TH DRIEST NOVEMBER
ON RECORD. MEASURABLE RAINFALL OCCURRED ON JUST 10 DAYS...WITH THE
HIGHEST SINGLE DAY RAINFALL BEING 0.46 INCHES ON THE 24TH. OVER HALF
OF THE MONTHLY RAINFALL...0.75 INCHES...FELL ON JUST THREE DAYS FROM
THE 24TH THROUGH THE 26TH.

THERE WAS NO SNOWFALL DURING THE MONTH...NOT EVEN A TRACE. THIS TIES
WITH 6 OTHER YEARS FOR A NOVEMBER WITH NO MEASURABLE
SNOWFALL...1923...1948...1990...1994...1998...AND 2001. OUT OF THESE
6 YEARS...2001 IS THE ONLY OTHER YEAR WHERE THERE WAS NOT EVEN A
TRACE OF SNOWFALL RECORDED FOR THE ENTIRE MONTH OF NOVEMBER. IN
2001...THE FIRST MEASURABLE SNOWFALL AT SOUTH BEND DID NOT OCCUR
UNTIL DECEMBER 14TH. THAT WINTER SEASON WENT ON TO PRODUCE 62.8
INCHES OF SNOW.

============================ DECEMBER ============================

...BELOW NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION...

AFTER A VERY MILD NOVEMBER...DECEMBER WAS A REMINDER OF WHAT WINTER
SHOULD REALLY FEEL LIKE. TEMPERATURES FOR THE MONTH WERE A LITTLE
BELOW NORMAL BUT IT SEEMED TO FEEL COLDER AFTER SUCH A MILD
NOVEMBER. PRECIPITATION WAS BELOW NORMAL AND SNOWFALL WAS MUCH BELOW
AS NO SIGNIFICANT LAKE EFFECT OCCURRED DURING THE MONTH. DESPITE
PRECIPITATION AND SNOWFALL BEING BELOW NORMAL...THERE WAS NOT A
SHORTAGE OF DAYS WHERE PRECIPITATION OCCURRED. 25 DAYS EXPERIENCED AT
LEAST A TRACE OF PRECIPITATION AND 18 DAYS HAD MEASURABLE
PRECIPITATION.

THE AVERAGE MONTHLY TEMPERATURE AT SOUTH BEND REGIONAL AIRPORT WAS
27.6 DEGREES...1.1 DEGREES BELOW NORMAL. THE MONTH BEGAN WARM AS THE
FIRST DAY HAD A HIGH OF 53 DEGREES BUT THIS WARMTH WAS SHORT
LIVED. TEMPERATURES BEGAN A SLOW DECLINE THROUGH THE FIRST WEEK AND
BY DECEMBER 10TH THE COLDEST AIR OF THE SEASON ARRIVED. THE HIGH
TEMPERATURE ON THIS DAY WAS ONLY 16 DEGREES AND THE LOW WAS 3 ABOVE
ZERO. THE AVERAGE TEMPERATURE ON THE 10TH WAS JUST 10 DEGREES...20
DEGREES BELOW NORMAL. THIS WAS THE COLDEST DAY OF THE MONTH.

THE FIRST MEASURABLE SNOWFALL OF THE SEASON FINALLY OCCURRED ON
DECEMBER 4TH WHEN 0.1 INCHES WAS RECORDED. SOUTH BEND WOULD NOT
RECORD MORE THAN 2 INCHES OF SNOW ON A SINGLE CALENDAR DAY UNTIL
DECEMBER 26TH WHEN 3.2 INCHES FELL. THIS WOULD BE THE HIGHEST SINGLE
DAY SNOWFALL FOR THE MONTH. SNOWFALL FOR THE ENTIRE MONTH TOTALED
11.5 INCHES...7.7 INCHES BELOW THE NORMAL OF 19.2 INCHES. FOR THE
YOUNG WINTER SEASON THROUGH THE END OF DECEMBER...THE TOTAL SNOWFALL
AT SOUTH BEND HAS BEEN JUST 11.5 INCHES...15.9 INCHES BELOW THE
NORMAL OF 27.4 INCHES. PRECIPITATION FOR THE MONTH WAS JUST 1.88
INCHES...1.21 INCHES BELOW NORMAL.

ADDITIONAL CLIMATE DATA AND RECORDS FOR MANY OTHER LOCATIONS ACROSS
NORTHERN INDIANA...NORTHWEST OHIO AND SOUTHWEST LOWER MICHIGAN CAN
BE FOUND ON THE NATIONAL WEATHER SERVICE CLIMATE WEB PAGE. SIMPLY
LOG ON TO WWW.WEATHER.GOV/IWX AND CLICK ON THE LOCAL CLIMATE LINK. A
WEALTH OF HISTORIC WEATHER AND CLIMATE INFORMATION CAN BE FOUND
THERE.

$$

LASHLEY/LEWIS






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