Climatological Report (Annual)
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000
CXUS53 KIWX 011009
CLASBN

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
410 AM EST SUN JAN 1 2012

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

...THE SOUTH BEND CLIMATE SUMMARY FOR THE YEAR OF 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2011

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             109   07/24/1934
 LOW              -22   01/20/1943
                        01/25/1897
HIGHEST            99   07/21        MM      MM       94
LOWEST             -9   02/10        MM      MM      -10
AVG. MAXIMUM     59.6              58.8     0.8     60.0
AVG. MINIMUM     41.7              40.8     0.9     41.6
MEAN             50.6              49.8     0.8
DAYS MAX >= 90     19               9.7     9.3       16
DAYS MAX <= 32     44              44.6    -0.6       64
DAYS MIN <= 32    123             122.7     0.3      131
DAYS MIN <= 0       7               5.3     1.7        2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        55.61   1990
 MINIMUM        25.15   1963
TOTALS          46.48             38.00    8.48    32.28
DAILY AVG.       0.13              0.10    0.03     0.09
DAYS >= .01       163             145.4    17.6      139
DAYS >= .10        95              78.3    16.7       69
DAYS >= .50        32              23.4     8.6       18
DAYS >= 1.00       12               7.2     4.8        7

SNOWFALL (INCHES)
RECORDS
 TOTAL          141.7   1978
TOTALS           86.4              66.6    19.8     70.7
SINCE 7/1         5.7              22.5   -16.8     24.9
SNOWDEPTH AVG.      1                MM      MM        1
DAYS >= TRACE      58              44.9    13.1       59
DAYS >= 1.0        20              20.4    -0.4       21
GREATEST
 SNOW DEPTH        23   01/08                         15

DEGREE_DAYS
HEATING TOTAL    6075              6298    -223     6042
 SINCE 7/1         MM              2391      MM     2402
COOLING TOTAL     969               773     196     1022
 SINCE 1/1        969               773     196     1022
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
HIGHEST WIND SPEED/DIRECTION    47/320    DATE  07/11
HIGHEST GUST SPEED/DIRECTION    66/320    DATE  07/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR          154
NUMBER OF DAYS PC            109
NUMBER OF DAYS CLOUDY        102

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               2
HEAVY RAIN               40     RAIN                      72
LIGHT RAIN              158     FREEZING RAIN              2
LT FREEZING RAIN          9     HAIL                       3
HEAVY SNOW                4     SNOW                      20
LIGHT SNOW               52     SLEET                      9
FOG                     217     FOG W/VIS <= 1/4 MILE     21
HAZE                     71

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

&&

...WEATHER REVIEW FOR 2011...

OVERALL 2011 WAS A WET YEAR WITH ABOVE NORMAL TEMPERATURES. THE
AVERAGE MONTHLY TEMPERATURE AT SOUTH BEND WAS 50.6 DEGREES WHICH IS
0.8 DEGREES ABOVE NORMAL. THIS TIES FOR THE 20TH WARMEST YEAR ON
RECORD. PRECIPITATION FOR THE YEAR WAS 46.48 INCHES...8.48 INCHES
ABOVE NORMAL. THIS RANKS AS THE 5TH WETTEST YEAR ON RECORD. SNOWFALL
FOR THE CALENDAR YEAR WAS 86.4 INCHES...19.8 INCHES ABOVE NORMAL.
THIS RANKS AS THE 16TH SNOWIEST YEAR ON RECORD.

BELOW ARE THE MONTHLY SUMMARIES FOR 2011 AT SOUTH BEND. ADDITIONAL
INFORMATION AND SUMMARIES FOR INDIVIDUAL WEATHER EVENTS FROM 2011
CAN BE FOUND ONLINE AT WEATHER.GOV/IWX.


JANUARY

...A SEASONABLY COLD BUT VERY SNOWY JANUARY...

THE AVERAGE TEMPERATURE FOR JANUARY WAS ABOUT 2 DEGREES BELOW NORMAL
AND PRECIPITATION WAS NEAR NORMAL. HOWEVER...SNOWFALL FOR THE MONTH
WAS WELL ABOVE NORMAL WITH OVER 50 INCHES FALLING AT THE SOUTH BEND
REGIONAL AIRPORT...AND OVER HALF OF THIS AMOUNT FELL ON ONE
SINGLE DAY.

THE MONTH BEGAN VERY WARM AS THE NEW YEAR STARTED WITH RECORD
TEMPERATURES IN THE 50S. A STRONG COLD FRONT SWEPT THROUGH ON NEW
YEARS DAY AND TEMPERATURES PLUMMETED INTO THE 20S BY MID TO LATE
AFTERNOON. THIS WOULD TURN OUT TO BE BY FAR THE WARMEST DAY OF THE
MONTH AS THE NEXT WARMEST HIGH TEMPERATURE IN JANUARY WAS ONLY 37
DEGREES. DESPITE THIS...TEMPERATURES OVERALL WERE JUST SLIGHTLY
BELOW NORMAL WITH NO PROLONGED PERIOD OF EXTREME COLD WEATHER. LOW
TEMPERATURES DID DROP TO ZERO OR BELOW ZERO ON FOUR DAYS...THE
9TH...21ST...22ND AND 23RD.

PRECIPITATION WAS RECORDED AT SOUTH BEND ON 26 OUT OF 31 DAYS WITH
MEASURABLE PRECIPITATION ON 19 OUT OF 31 DAYS. MEASURABLE SNOWFALL
OCCURRED ON 18 OUT OF 31 DAYS. THE MONTH FEATURED A RECORD SETTING
SNOWFALL EVENT ON THE 7TH AND 8TH. OVER 36 INCHES OF LAKE EFFECT
SNOW FELL IN SOUTH BEND AS AN INTENSE SINGLE BAND OF SNOW BECAME
NEARLY STATIONARY OVER SOUTH BEND FOR SEVERAL HOURS. AN INCREDIBLE
19 INCHES OF SNOW WAS MEASURED IN JUST 4 HOURS AT SOUTH BEND
REGIONAL AIRPORT...WITH 8 INCHES RECORDED IN JUST 1 OF THOSE HOURS.

THIS EVENT BROKE RECORDS FOR THE ALL TIME DAILY AND TWO DAY SNOWFALL
TOTALS SINCE RECORDS BEGAN IN THE SOUTH BEND AREA IN 1893. A RECORD
26 INCHES OF SNOW FELL ON THE 8TH...BREAKING THE PREVIOUS ALL TIME
SINGLE DAY SNOWFALL OF 20 INCHES SET ON JANUARY 30TH 1909. THE
PREVIOUS RECORD FOR SNOWFALL ON JANUARY 8TH WAS 15 INCHES SET IN
1903. THE TWO DAY SNOWFALL TOTAL OF 36.6 INCHES ON THE 7TH AND 8TH
BROKE THE PREVIOUS TWO DAY SNOWFALL TOTAL OF 29 INCHES SET ON
JANUARY 30TH AND 31ST IN 1909.

THE MONTHLY AVERAGE TEMPERATURE WAS 21.2 DEGREES...2.2 DEGREES BELOW
NORMAL. THE HIGHEST TEMPERATURE WAS 55 ON THE 1ST AND THE LOWEST
TEMPERATURE WAS NEGATIVE 2 ON THE 23RD. TOTAL PRECIPITATION WAS 2.16
INCHES...0.11 INCHES BELOW NORMAL. THE GREATEST 24 HOUR
PRECIPITATION WAS 0.92 INCHES ON THE 7TH AND 8TH. THE SNOWFALL TOTAL
FOR JANUARY WAS 53.8 INCHES...30.6 INCHES ABOVE THE NORMAL OF 23.2
INCHES. THE HIGH TEMPERATURE WAS 32 DEGREES OR COLDER ON 26 DAYS
WHILE THE LOW TEMPERATURE DROPPED BELOW 32 ON 31 DAYS.

JANUARY 2010 RANKS AS THE 2ND SNOWIEST JANUARY ON RECORD AT SOUTH
BEND. JANUARY 1978 HOLDS THE RECORD FOR MOST SNOWFALL WITH A
WHOPPING 86.1 INCHES.


FEBRUARY

...COLD AND WET WITH ABOVE NORMAL SNOWFALL...

THE COLD AND SNOWY WINTER CONTINUED THROUGH FEBRUARY AS TEMPERATURES
AVERAGED BELOW NORMAL WHILE PRECIPITATION AND SNOWFALL WERE ABOVE
NORMAL. THERE WERE THREE DAILY RECORDS SET DURING THE MONTH FOR
SNOWFALL...PRECIPITATION AND EVEN WARM TEMPERATURES.

THE MONTH BEGAN WITH A STRONG WINTER STORM SYSTEM THAT BROUGHT
BLIZZARD CONDITIONS...HEAVY SNOW...FREEZING RAIN AND SLEET TO MUCH
OF THE AREA. WHILE THE BRUNT OF HEAVIEST SNOW FELL ACROSS PORTIONS
OF NORTHEAST ILLINOIS...FAR NORTHWEST INDIANA AND EXTREME SOUTHWEST
LOWER MICHIGAN...THE ENTIRE AREA EXPERIENCED SEVERE WINTER WEATHER
IN SOME FORM. SOUTH BEND REGIONAL AIRPORT RECORDED 13.4 INCHES OF
SNOW FROM THIS SYSTEM WITH SUSTAINED WINDS OF 20 TO 30 MPH AND WIND
GUSTS TO 41 MPH. THE HIGHEST WIND GUST FOR THE MONTH AT SOUTH BEND
OCCURRED DURING THIS STORM. THE COMBINATION OF HEAVY SNOW AND STRONG
WINDS CREATED WHITE OUT AND BLIZZARD CONDITIONS...LED TO SNOW DRIFTS
IN EXCESS OF 5 FEET IN SOME AREAS...AND CLOSED MANY ROADS.

TEMPERATURES WERE GENERALLY WELL BELOW NORMAL THROUGH THE FIRST 12
DAYS OF THE MONTH. THREE DAYS EXPERIENCED LOW TEMPERATURES OF ZERO
OR COLDER WITH THE COLDEST READING OF 9 BELOW ZERO OCCURRING ON THE
MORNING OF THE 10TH. THIS COLD STRETCH WAS FOLLOWED BY A PLEASANT
WARM UP THAT STRETCHED THROUGH THE 18TH. THE HIGHEST TEMPERATURE OF
FEBRUARY OCCURRED ON THE 17TH WHEN THE HIGH WAS 56 DEGREES. THERE
WERE ACTUALLY 3 DAYS IN THE 50S THIS MONTH...THE 16TH...17TH AND
18TH. THIS STRETCH OF WARM TEMPERATURES HELPED RAISE THE MONTHLY
AVERAGE TEMPERATURE. HOWEVER...MORE SEASONABLE AIR ARRIVED ON THE
19TH AND TEMPERATURES GENERALLY REMAINED NEAR OR BELOW NORMAL FOR
THE REMAINDER OF THE MONTH.

WHILE HEAVY SNOW OCCURRED AT THE BEGINNING OF THE
MONTH...RAIN...ADDITIONAL LIGHT SNOW...AND MELTING SNOW COMBINED TO
CREATE FLOODING TOWARD THE END OF THE MONTH. SEVERAL WEATHER SYSTEMS
IMPACTED THE AREA WITH A MIX OF SNOW AND RAIN OCCURRING WITH EACH.
MEASURABLE PRECIPITATION OCCURRED ON 8 OUT OF THE LAST 9 DAYS IN
FEBRUARY. WELL OVER HALF OF THE TOTAL PRECIPITATION FOR THE MONTH
FELL IN THESE LAST 9 DAYS OF FEBRUARY. WITH THE GROUND ALREADY
SATURATED FROM THE SNOW MELT DURING THE MIDDLE OF THE MONTH...THE
ADDITIONAL RAIN AND NEW SNOW MELT LED TO RAPID RISES ON MANY AREA
RIVERS...WITH LOWLAND FLOODING AND SOME URBAN FLOODING AS WELL WHERE
STORM DRAINS WERE CLOGGED.

THE AVERAGE MONTHLY TEMPERATURE WAS 25.6 DEGREES...1.7 DEGREES BELOW
NORMAL. PRECIPITATION FOR THE MONTH WAS 3.51 INCHES...1.53 INCHES
ABOVE NORMAL. THIS RANKS AS THE 11TH WETTEST FEBRUARY ON RECORD IN
THE SOUTH BEND AREA. SNOWFALL FOR THE MONTH WAS 25.5 INCHES...10
INCHES ABOVE NORMAL. THIS RANKS AS THE 8TH SNOWIEST FEBRUARY ON
RECORD.

THERE WERE THREE DIFFERENT DAILY RECORDS SET AT SOUTH BEND IN
FEBRUARY. A RECORD SNOWFALL OF 8.4 INCHES WAS SET ON FEBRUARY
1ST...BREAKING THE PREVIOUS RECORD OF 7.5 INCHES SET IN 1976. A
RECORD WARM LOW TEMPERATURE OCCURRED ON FEBRUARY 17TH WHEN THE LOW
WAS ONLY 48 DEGREES. THE PREVIOUS WARMEST LOW TEMPERATURE ON THIS
DATE WAS 42 SET IN 1981. ON FEBRUARY 20TH A RECORD RAINFALL OF 0.88
INCHES FELL...BREAKING THE PREVIOUS RECORD ON THAT DATE OF 0.78
INCHES IN 1997.


MARCH

...ROLLER COASTER MONTH RESULTS IN BELOW NORMAL TEMPERATURES AND
PRECIPITATION AT SOUTH BEND...

IT WAS GENERALLY A QUIET MONTH WEATHERWISE WITH AN UP AND DOWN TREND
FOR TEMPERATURES ACROSS NORTHERN INDIANA AND SOUTHWEST LOWER
MICHIGAN. THE FIRST HALF OF THE MONTH SAW A GENERAL MIX OF ABOVE AND
BELOW NORMAL TEMPERATURES AT SOUTH BEND. BEGINNING ON THE
16TH...AVERAGE DAILY TEMPERATURES WERE AT OR ABOVE NORMAL THROUGH
THE 22ND. BEGINNING ON THE 23...AVERAGE DAILY TEMPERATURES WERE
BELOW NORMAL THROUGH THE END OF THE MONTH. THIS COLD SNAP TO END THE
MONTH HELPED BRING THE AVERAGE MONTHLY TEMPERATURE TO BELOW
NORMAL...WITH THE AVERAGE DAILY TEMPERATURE AT LEAST 11 DEGREES
BELOW NORMAL FROM THE 24TH THROUGH THE 28TH.

PRECIPITATION AND SNOWFALL WERE ALSO BELOW NORMAL AND THERE WAS
MEASURABLE PRECIPITATION ON ONLY 10 DAYS. MEASURABLE SNOWFALL WAS
ONLY RECORDED ON 4 DAYS. THROUGH THE END OF MARCH...THE SEASONAL
SNOWFALL TOTAL AT SOUTH BEND STANDS AT 105.6 INCHES...WHICH IS 30.8
INCHES ABOVE NORMAL FOR THE SEASON. THIS 2010-2011 SNOWFALL TOTAL
ALSO STANDS AS THE 5TH SNOWIEST SEASON AT SOUTH BEND ON RECORD SO
FAR THROUGH THE END OF MARCH.

THE LA NINA PHASE OF THE EL NINO SOUTHERN OSCILLATION BEGAN TO
WEAKEN THROUGH THE FIRST MONTH OF METEOROLOGICAL SPRING. SEA SURFACE
TEMPERATURES ACROSS THE EQUATORIAL PACIFIC OCEAN CONTINUED A WARMING
TREND THROUGH THE MONTH OF MARCH...WITH A CONTINUED WARMING TREND
EXPECTED THROUGH THE SPRING INTO THE SUMMER...AND A RETURN TO ENSO
NEUTRAL CONDITIONS BY JUNE.

THE AVERAGE MONTHLY TEMPERATURE WAS 36.2 DEGREES...1.3 DEGREES BELOW
NORMAL. THE HIGHEST TEMPERATURE FOR THE MONTH WAS 72 ON THE 17TH AND
THE COLDEST WAS 16 ON THE 1ST. PRECIPITATION FOR THE MONTH WAS 2.28
INCHES...0.61 INCHES BELOW NORMAL. THE GREATEST 24 HOUR
PRECIPITATION WAS 0.63 INCHES WHICH FELL ON THE 4TH. SNOWFALL FOR
MARCH WAS 1.4 INCHES...7.3 INCHES BELOW NORMAL. THE GREATEST DAILY
SNOWFALL TOTAL WAS 0.8 INCHES ON THE 5TH.


APRIL

...A VERY WET APRIL...

IF THE OLD SAYING OF APRIL SHOWERS BRINGS MAY FLOWERS HOLDS
TRUE...THEN MAY SHOULD PRODUCE AN ABUNDANCE OF FLOWERS ACROSS THE
AREA. DESPITE A WEAKENING LA NINA IN THE EQUATORIAL PACIFIC
OCEAN...THE JET STREAM ACROSS THE CENTRAL UNITED STATES REMAINED
STRONG AND LA NINA LIKE IN APRIL...BRINGING NUMEROUS WEATHER SYSTEMS
WITH ABUNDANT MOISTURE INTO THE OHIO VALLEY AND GREAT LAKES REGION.
THIS HELPED GENERATE HEAVY RAINFALL IN MANY AREAS AND CONTRIBUTED TO
MAJOR FLOODING ACROSS PARTS OF ILLINOIS...INDIANA...OHIO AND
KENTUCKY. MONTHLY RAINFALL TOTALS EXCEEDED SEVEN INCHES AT SOUTH
BEND REGIONAL AIRPORT.

RAIN DOMINATED THE MONTH AS 7.24 INCHES WAS RECORDED AT SOUTH
BEND...3.62 INCHES ABOVE NORMAL. THIS RANKS AS THE 4TH WETTEST APRIL
ON RECORD FOR THE SOUTH BEND AREA...DATING BACK TO 1893. THERE WERE
23 DAYS THAT EXPERIENCED AT LEAST A TRACE OF PRECIPITATION AND 19
DAYS RECEIVED MEASURABLE RAINFALL. DURING THE LAST 16 DAYS OF
APRIL...ONLY 2 HAD NO PRECIPITATION. THE LAST 6 DAYS OF THE MONTH
PRODUCED 3.25 INCHES OF RAIN. THE GREATEST 24 HOUR RAINFALL DURING
THE MONTH FELL ON THE 27TH AND 28TH WITH 1.62 INCHES. A TRACE OF
SNOW OR SLEET WAS ALSO RECORDED ON THE 16TH...18TH AND 22ND.

THE AVERAGE MONTHLY TEMPERATURE WAS 48.9 DEGREES...JUST 0.6 INCHES
ABOVE NORMAL. THE ABUNDANCE OF RAIN AND CLOUDS COUPLED WITH SEVERAL
WINDY DAYS MADE IT FEEL RATHER COOL FOR MANY PEOPLE. HOWEVER...18
DAYS OF APRIL HAD TEMPERATURES AT OR ABOVE NORMAL AND 4 OF THOSE
DAYS WERE AT LEAST 10 DEGREES OR MORE ABOVE NORMAL. THE WARMEST DAY
OF THE MONTH WAS THE 10TH WITH A HIGH OF 85 AND A LOW OF 59 FOR AN
AVERAGE OF 72...26 DEGREES ABOVE NORMAL. THE ONLY COOLING DEGREE
DAYS FOR APRIL OCCURRED ON THIS DAY WITH 7. THERE WERE TWELVE DAYS
WITH AN AVERAGE TEMPERATURE BELOW NORMAL...AND ONLY 1 DAY WAS AT
LEAST TEN DEGREES BELOW NORMAL...APRIL 19TH. HOWEVER...9 OF THESE 12
DAYS THAT WERE BELOW NORMAL FELL OVER THE LAST 15 DAYS OF THE MONTH
WHEN IT WAS WET AND WINDY.

THE COMBINATION OF RAIN AND SEVERAL WINDY DAYS ALSO LIKELY
CONTRIBUTED TO THE PERCEPTION THAT IT WAS A COLD MONTH. THE AVERAGE
DAILY WIND SPEED EXCEEDED 10 MPH ON 17 DAYS AND REACHED OR EXCEEDED
15 MPH ON 6 DAYS. THE HIGHEST WIND GUST WAS 44 MPH FROM THE
SOUTHEAST ON APRIL 15TH.


MAY

...A VERY WET MONTH ACROSS THE REGION...

IT WAS ANOTHER WET MONTH AT SOUTH BEND REGIONAL AIRPORT WITH OVER 7
INCHES OF RAIN RECORDED FOR THE SECOND CONSECUTIVE MONTH. THE
AVERAGE MONTHLY TEMPERATURE ENDED UP BEING ABOVE NORMAL AS WELL EVEN
THOUGH IT FELT LIKE A COOL MONTH DUE TO ALL THE RAIN. THE WARM LAST
2 DAYS OF THE MONTH HELPED SKEW THE AVERAGE TEMPERATURE FROM JUST
BELOW NORMAL TO JUST ABOVE NORMAL.

THE AVERAGE MONTHLY TEMPERATURE WAS 60.4...0.8 DEGREES ABOVE NORMAL.
THE HIGHEST TEMPERATURE WAS 89 ON BOTH THE 30TH AND 31ST. THE LOWEST
TEMPERATURE WAS 32 ON THE 5TH. THERE WERE 13 DAYS WITH AN AVERAGE
TEMPERATURE BELOW NORMAL. THE COLDEST DAY RELATIVE TO NORMAL WAS THE
16TH WITH AN AVERAGE TEMPERATURE OF 46...14 DEGREES BELOW NORMAL.
THE WARMEST DAY RELATIVE TO NORMAL WAS THE 12TH...WITH AN AVERAGE
TEMPERATURE OF 74...16 DEGREES ABOVE NORMAL. THE 31ST OF MAY HAD THE
HIGHEST AVERAGE TEMPERATURE OF 80...WHICH WAS 15 DEGREES ABOVE
NORMAL.

PRECIPITATION FOR THE MONTH WAS 7.59 INCHES...4.09 INCHES ABOVE
NORMAL. THIS RANKS AS THE 2ND WETTEST MAY ON RECORD...BEHIND MAY
2009 WHICH RECORDED 8.09 INCHES. MEASURABLE PRECIPITATION FELL ON 18
DAYS WITH 5 DAYS RECEIVING A HALF INCH OR MORE AND 3 DAYS HAVING 1
INCH OR MORE. THE GREATEST 24 HOUR PRECIPITATION TOTAL WAS 2.46
INCHES ON THE 25TH AND 26TH. THE 2.25 INCHES OF RAIN THAT FELL ON
MAY 25TH WAS A RECORD FOR THAT DATE...SURPASSING 1.60 INCHES THAT
FELL IN 1950.

IT IS INTERESTING TO NOTE THAT THERE HAS ONLY BEEN ONE OTHER TIME
THAT TWO CONSECUTIVE MONTHS OF THE YEAR AT SOUTH BEND RECEIVED 7 OR
MORE INCHES OF PRECIPITATION. APRIL 2011 HAD 7.24 INCHES TO GO ALONG
WITH THE 7.59 INCHES IN MAY. THE ONLY OTHER TIME THIS HAS HAPPENED
WAS IN 1996 WHEN 8.09 INCHES FELL IN MAY AND 7.20 INCHES FELL IN
JUNE. THERE WAS ALSO A LA NINA ENDING IN THE SPRING OF
1996...SIMILAR TO 2011. RECORDS BEGAN IN SOUTH BEND IN 1893.

THERE WAS NO SNOWFALL RECORDED IN MAY. THE TOTAL SNOWFALL FOR THE
SEASON IS 105.6 INCHES...29.1 INCHES ABOVE NORMAL. THIS RANKS AS THE
5TH SNOWIEST SEASON ON RECORD.


JUNE

...A SEASONABLE START TO SUMMER...

JUNE WAS ANOTHER WET MONTH IN THE SOUTH BEND AREA...BUT IT WAS MUCH
CLOSER TO NORMAL THAN PREVIOUS MONTHS. TEMPERATURES WERE ALSO JUST
SLIGHTLY ABOVE NORMAL...BUT THE WARMEST TEMPERATURE IN EIGHT YEARS
AT SOUTH BEND OCCURRED EARLY IN THE MONTH.

THE AVERAGE MONTHLY TEMPERATURE WAS 70.3 DEGREES...1.3 DEGREES ABOVE
NORMAL. THERE WAS A TWO DAY STRETCH OF VERY WARM TEMPERATURES EARLY
IN THE MONTH...WITH HIGHS REACHING 97 ON THE 7TH AND 96 ON THE 8TH.
THE HIGH TEMPERATURE OF 97 REPRESENTED THE WARMEST TEMPERTURE AT
SOUTH BEND SINCE AUGUST 21ST 2003 WHEN IT WAS LAST 97. THIS HIGH
TEMPERATURE WAS ALSO ESPECIALLY WARM FOR THIS EARLY IN THE CALENDAR
YEAR. THE LAST TIME THAT THE TEMPERATURE REACHED 97 DEGREES IN THE
MONTH OF JUNE WAS JUNE 20 1995. THE LAST TIME THAT THE TEMPERATURE
REACHED 97 DEGREES THIS EARLY IN THE CALENDAR YEAR WAS JUNE 4
1934...WHEN THE HIGH TEMPERATURE WAS 98. IRONICALLY...TEMPERATURES
COOLED CONSIDERABLY AFTER THIS BRIEF WARM STRETCH. THE HIGH
TEMPERATURE ON THE 9TH WAS JUST 73 AND ON THE 12TH THE HIGH ONLY
REACHED 64 DEGREES AT SOUTH BEND. THERE WERE ONLY 2 DAYS WITH 90
DEGREES OR WARMER...THE 7TH AND 8TH.

PRECIPITATION FOR JUNE WAS 4.94 INCHES...0.75 INCHES ABOVE NORMAL.
THIS IS THE 5TH CONSECUTIVE MONTH WITH ABOVE NORMAL PRECIPITATION.
MEASURABLE RAINFALL OCCURRED ON 12 DAYS AND ON TWO DAYS RAINFALL WAS
GREATER THAN ONE INCH. THE GREATEST 24 HOUR RAINFALL OCCURRED ON THE
18TH WHEN 1.48 INCHES WAS RECORDED.


JULY

...A VERY WARM AND RELATIVELY DRY JULY...

WHILE THE AVERAGE MONTHLY TEMPERATURE AT SOUTH BEND REGIONAL AIRPORT
WAS ABOVE NORMAL WITH SEVERAL WARM DAYS...THE AREA WAS JUST ON THE
FRINGE OF MORE EXTREME HEAT AND HUMIDITY THAT IMPACTED MUCH OF THE
MIDWEST AND INDIANA. THE SOUTH BEND AREA WAS ALSO JUST EAST OF VERY
HEAVY RAINFALL WHICH FELL OVER PARTS OF NORTHEAST ILLINOIS WITH
RECORD RAINFALL IN THE CHICAGO AREA DURING JULY.

THE AVERAGE HIGH TEMPERATURE FOR JULY WAS 87.4 DEGREES...4.3 DEGREES
ABOVE THE NORMAL OF 83.1 DEGREES. THE AVERAGE LOW TEMPERATURE WAS
67.5 DEGREES...4.7 DEGREES ABOVE THE NORMAL OF 62.8 DEGREES. THIS
WAS THE 3RD WARMEST AVERAGE LOW TEMPERATURE ON RECORD. THE AVERAGE
MONTHLY TEMPERATURE WAS 77.5 DEGREES...4.5 DEGREES ABOVE THE NORMAL
OF 72.9 DEGREES. THIS IS THE 8TH WARMEST JULY ON RECORD AT SOUTH
BEND. THE DAILY AVERAGE TEMPERATURE WAS BELOW NORMAL ON JUST 4 DAYS
BUT THERE WERE ONLY 4 DAYS IN WHICH THE DAILY AVERAGE TEMPERATURE
WAS 10 DEGREES OR MORE ABOVE NORMAL.

THERE WERE 11 DAYS WITH A TEMPERATURE OF 90 DEGREES OR GREATER AND
TWO DAYS OF 95 OR GREATER DURING JULY. THE HIGHEST TEMPERATURE FOR
THE MONTH WAS 99 DEGREES ON THE 21ST AND THE LOWEST TEMPERATURE WAS
57 ON THE 5TH. THE LAST TIME SOUTH BEND REACHED AT LEAST 99 DEGREES
WAS JULY 30TH 1999 WHEN THE HIGH TEMPERATURE REACHED 102. THIS WAS
ALSO THE LAST TIME THE HIGH TEMPERATURE REACHED OR EXCEEDED 100
DEGREES. THE WARMEST TEMPERATURE ON RECORD AT SOUTH BEND IS 109
DEGREES WHICH OCCURRED ON JULY 24TH 1934.

PRECIPITATION FOR THE MONTH WAS 2.52 INCHES...1.21 INCHES BELOW THE
NORMAL OF 3.73 INCHES. THE GREATEST 24 HOUR PRECIPITATION AMOUNT WAS
0.88 INCHES ON THE 18TH AND 19TH.


AUGUST

...RELATIVELY DRY AUGUST WITH NEAR NORMAL TEMPERATURES...

IT WAS A DRY AUGUST WITH NEAR NORMAL TEMPERATURES IN THE SOUTH BEND
AREA. THE BIGGEST NEWS WAS THE NEW CLIMATE NORMALS THAT WENT INTO
EFFECT AUGUST 1ST FOR CLIMATE LOCATIONS AROUND THE COUNTRY. NEW
NORMALS ARE GENERATED EVERY TEN YEARS AS POLICY...AND THE NEW
NORMALS WERE GENERATED FOR THE PERIOD OF 1981 TO 2010. THEREFORE
DEPARTURES FROM NORMALS FROM THIS MONTH FORWARD WILL BE COMPUTED
BASED ON THE NEW NORMALS...WHILE DEPARTURES FROM JANUARY THROUGH
JULY OF THIS YEAR ARE COMPUTED USING THE OLD NORMALS.

THE AVERAGE MONTHLY TEMPERATURE WAS 72.2 DEGREES...JUST 0.9 DEGREES
ABOVE NORMAL. THE HIGHEST TEMPERATURE WAS 92 ON THE 24TH AND THE
LOWEST TEMPERATURE WAS 52 ON THE 29TH. THE MONTH FELT MUCH MORE
COMFORTABLE THAN JULY...MAINLY BECAUSE OF MUCH LOWER DEW POINTS
WHICH MADE IT FEEL MUCH MORE TOLERABLE COMPARED TO JULY. THERE WAS
JUST 3 DAYS IN WHICH TEMPERATURES REACHED OR EXCEEDED 90 DEGREES IN
AUGUST...MUCH LOWER THAN THE 11 DAYS EXPERIENCED IN JULY. THERE WERE
ONLY TWO DAYS IN WHICH THE AVERAGE DAILY TEMPERATURE WAS 10 OR
MORE DEGREES ABOVE NORMAL...THE 2ND AND 24TH.

AUGUST PRECIPITATION WAS JUST 1.94 INCHES...1.82 INCHES BELOW
NORMAL. THE GREATEST 24 HOUR PRECIPITATION WAS 0.64 INCHES ON THE
6TH AND 7TH. MEASURABLE PRECIPITATION FELL ON JUST 9 DAYS.


SEPTEMBER

...A COOL SEPTEMBER WITH SLIGHTLY ABOVE NORMAL PRECIPITATION...

AFTER A VERY WARM START TO THE MONTH...SEPTEMBER COOLED CONSIDERABLY
WITH A MONTHLY AVERAGE TEMPERATURE THAT ENDED BELOW NORMAL.
PRECIPITATION WAS MORE ABUNDANT THIS MONTH...ESPECIALLY DURING THE
END OF THE MONTH WHEN MEASURABLE PRECIPITATION FELL ON EACH OF THE
LAST 7 DAYS.

SEPTEMBER BEGAN HOT AND DRY WITH HIGH TEMPERATURES IN THE MIDDLE 90S
ON THE FIRST 3 DAYS AT SOUTH BEND REGIONAL AIRPORT. THE REGION WAS
ALSO IN THE MIDDLE OF A PROLONGED DRY SPELL WITH PRECIPITATION OVER
THE SUMMER BEING BELOW NORMAL. THE HIGH TEMPERATURE ON THE FIRST AND
SECOND WAS 95 DEGREES EACH DAY AND 93 DEGREES WAS RECORDED ON THE
THIRD. A STRONG COLD FRONT MOVED THROUGH THE REGION EARLY ON THE 4TH
AND HELPED BRING SOME LIGHT RAIN AND MUCH COOLER TEMPERATURES TO THE
REGION. IT TURNED OUT THAT THESE FIRST THREE DAYS WERE THE ONLY DAYS
OF THE MONTH WITH AN AVERAGE TEMPERATURE MORE THAN 10 DEGREES ABOVE
NORMAL. THERE WERE ONLY TWO OTHER DAYS IN WHICH THE HIGH TEMPERATURE
REACHED OR EXCEEDED 80 DEGREES...THE 11TH AND 12TH. THERE WERE 16
DAYS IN WHICH THE HIGH TEMPERATURE DID NOT REACH 70
DEGREES...INCLUDING 3 DAYS WITH HIGHS OF 60 DEGREES OR LESS. IN
FACT...ONLY 10 DAYS DURING THE MONTH HAD AN AVERAGE TEMPERATURE
ABOVE NORMAL WHILE 20 DAYS WERE AT OR BELOW NORMAL.

THE WARMEST TEMPERATURE WAS 95 ON THE 1ST AND 2ND AND THE COOLEST
TEMPERATURE WAS 39 ON THE 15TH AND 16TH. THE AVERAGE MONTHLY
TEMPERATURE WAS 62.5 WHICH WAS 1.9 DEGREES BELOW NORMAL.

MUCH NEEDED PRECIPITATION FELL IN SEPTEMBER ACROSS THE ENTIRE AREA.
A LARGE PART OF THIS FELL IN THE LAST WEEK WHEN A PERSISTENT UPPER
LOW BECAME NEARLY STATIONARY OVER THE WESTERN GREAT LAKES. THIS
MEANDERING LOW WAS RESPONSIBLE FOR SHOWERS ON EACH OF THE LAST 7
DAYS OF THE MONTH...SOME OF WHICH WERE HEAVY WITH A FEW
THUNDERSTORMS AT TIMES. THIS LOW WAS ALSO RESPONSIBLE FOR SEVERAL
FUNNEL CLOUDS...ONE OF WHICH BECAME A BRIEF AND WEAK EF0 TORNADO IN
NAPPANEE INDIANA ON THE 27TH.

PRECIPITATION FOR THE MONTH WAS 3.65 INCHES...0.12 INCHES ABOVE
NORMAL. THE 3.65 INCHES WAS THE MOST MONTHLY RAINFALL AT SOUTH BEND
SINCE JUNE WHEN 4.94 INCHES FELL IN THAT MONTH. MEASURABLE PRECIPITATION
FELL ON 14 DAYS AND A HALF INCH OR MORE WAS RECORDED ON 3 DAYS. THE
GREATEST 24 HOUR PRECIPITATION WAS ON THE 25TH AND 26TH WHEN 1.15
INCHES FELL.


OCTOBER

...A WARM AND WET OCTOBER AT SOUTH BEND...

IT WAS A TALE OF TWO MONTHS DURING OCTOBER AT SOUTH BEND. AFTER A
COOL START TO THE MONTH...WITH THE FIRST THREE DAYS HAVING BELOW
NORMAL TEMPERATURES...A WARM SPELL IMPACTED THE REGION...WITH AT OR
ABOVE NORMAL TEMPERATURES FROM THE 4TH THROUGH THE 16TH. DURING THIS
STRETCH...THE HIGH TEMPERATURE REACHED 80 DEGREES FOR 6
DAYS...INCLUDING 5 CONSECUTIVE DAYS OF 80 DEGREE TEMPERATURES FROM
THE 5TH THROUGH THE 9TH. NO PRECIPITATION FELL FROM THE BEGINNING OF
THE MONTH THROUGH THE 12TH.

THE SECOND HALF OF THE MONTH SAW A MORE ACTIVE WEATHER PATTERN...
BRINGING VARIATIONS IN TEMPERATURES AND AN INCREASE IN
PRECIPITATION. TEMPERATURES WERE BELOW NORMAL FROM THE 17TH THROUGH
THE 22ND...THEN BRIEFLY AND SLIGHTLY ABOVE NORMAL FROM THE 23RD
THROUGH THE 26TH...AND THEN BELOW NORMAL THROUGH THE END OF THE
MONTH. A TRACE OR MORE OF PRECIPITATION FELL 15 OUT OF THE LAST 19
DAYS OF THE MONTH AT SOUTH BEND...WITH A TRACE OR MORE OF
PRECIPITATION FALLING EVERYDAY DURING THE LAST NINE DAYS OF OCTOBER.

DUE TO THE WARM SPELL IN THE FIRST HALF OF THE MONTH...TEMPERATURES
ENDED UP ABOVE NORMAL FOR THE MONTH. THE AVERAGE MONTHLY TEMPERATURE
WAS 53.2 DEGREES...WHICH IS 1.1 DEGREES ABOVE NORMAL. THE HIGHEST
TEMPERATURE OF THE MONTH WAS 84 ON THE 7TH...AND THE LOWEST
TEMPERATURE WAS 28 ON THE 30TH.

PRECIPITATION FOR THE MONTH WAS ABOVE NORMAL. 4.57 INCHES OF
PRECIPITATION FELL...WHICH IS 1.25 INCHES ABOVE NORMAL. MEASURABLE
RAINFALL OCCURRED ON 13 DAYS DURING THE MONTH. THE HIGHEST DAILY
RAINFALL TOTAL WAS 1.81 INCHES ON THE 19TH. THIS SET A NEW DAILY
MAXIMUM RAINFALL RECORD FOR OCTOBER 19TH...BREAKING THE PREVIOUS
RECORD OF 1.02 INCHES IN 1923. SNOWFALL FOR THE MONTH WAS RECORDED
AS A TRACE...WHEN A THUNDERSTORM BROUGHT SMALL HAIL TO THE AIRPORT
ON THE 29TH.


NOVEMBER

...A WARM AND SLIGHTLY WET MONTH AT SOUTH BEND...

IT WAS A RELATIVELY WARM MONTH IN THE SOUTH BEND AREA WITH
PRECIPITATION THAT WAS SLIGHTLY ABOVE NORMAL AND SNOWFALL THAT WAS
BELOW NORMAL. THERE WAS ACTUALLY NO MEASURABLE SNOWFALL RECORDED AT
THE SOUTH BEND REGIONAL AIRPORT...ONLY A TRACE. THERE HAVE ONLY BEEN
5 OTHER YEARS AT SOUTH BEND IN WHICH NO MEASURABLE SNOWFALL WAS
RECORDED PRIOR TO DECEMBER 1ST. THOSE YEARS WERE
1948...1990...1998...2001 AND 2009.

THE AVERAGE MONTHLY TEMPERATURE AT SOUTH BEND WAS 45.0 WHICH IS 4.3
DEGREES ABOVE NORMAL. THIS RANKS AS THE 9TH WARMEST NOVEMBER ON
RECORD. THE HIGHEST TEMPERATURE WAS 68 ON THE 13TH AND THE COLDEST
WAS 24 ON THE 18TH. THE AVERAGE HIGH TEMPERATURE FOR THE MONTH WAS
53.1 AND THE AVERAGE LOW TEMPERATURE WAS 36.9. THE COLDEST DAY OF
THE MONTH RELATIVE TO NORMAL WAS THE 17TH WITH AN AVERAGE
TEMPERATURE OF 31 DEGREES...9 DEGREES BELOW NORMAL. IN
CONTRAST...THERE WERE 9 DAYS WITH AVERAGE TEMPERATURES 10 DEGREES OR
MORE ABOVE NORMAL. THE WARMEST DAY COMPARED TO NORMAL WAS THE 26TH
WITH AN AVERAGE TEMPERATURE OF 56...20 DEGREES ABOVE NORMAL.

PRECIPITATION AT SOUTH BEND WAS 3.46 INCHES...0.19 INCHES ABOVE
NORMAL. MANY AREAS SOUTH AND EAST OF SOUTH BEND EXPERIENCED GREATER
PRECIPITATION AMOUNTS FOR THE MONTH. THERE WERE 10 DAYS WITH
MEASURABLE PRECIPITATION...2 DAYS WITH A HALF INCH OR GREATER AND 1
DAY WITH 1 INCH OR GREATER. THE GREATEST 24 HOUR PRECIPITATION WAS
1.15 INCHES ON THE 22ND.

SNOWFALL FOR THE MONTH WAS JUST A TRACE...WHICH IS 4.8 INCHES BELOW
NORMAL. THIS TIES AS THE LEAST SNOWIEST NOVEMBER ON RECORD WITH NO
OFFICIAL MEASURABLE SNOWFALL. THERE WAS A TRACE OF SNOW ON JUST 2
DAYS...THE 10TH AND 29TH. IRONICALLY ON BOTH OF THESE DAYS
MEASURABLE SNOWFALL DID OCCUR ACROSS PARTS OF SOUTHWEST MICHIGAN AND
NORTHERN INDIANA BUT NOT AT THE SOUTH BEND REGIONAL AIRPORT.


DECEMBER

...A VERY WARM DECEMBER WITH BELOW NORMAL SNOWFALL...

WINTER BEGAN ON A VERY WARM NOTE AS DECEMBER TEMPERATURES WERE WELL
ABOVE NORMAL AND SNOWFALL WAS WELL BELOW NORMAL. PRECIPITATION WAS NEAR
NORMAL BUT THE LACK OF COLD AIR OVER THE RELATIVELY WARM LAKE
MICHIGAN WATERS PRECLUDED ANY SIGNIFICANT LAKE EFFECT SNOW FROM
DEVELOPING AND MOST PRECIPITATION WAS IN THE FORM OF RAIN.

DECEMBER BEGAN WARM WITH HIGH TEMPERATURES IN THE 40S AND 50S DURING
THE FIRST WEEK. A BRIEF PERIOD OF COLDER TEMPERATURES OCCURRED
DURING THE SECOND WEEK WHICH ACTUALLY TURNED OUT TO BE THE COLDEST
WEEK OF THE MONTH. THE PERIOD BETWEEN DECEMBER 6TH AND 11TH SAW 5 OF
THE 6 DAYS WITH AVERAGE TEMPERATURES BELOW NORMAL. THESE WOULD BE
THE ONLY 5 DAYS OF THE MONTH WITH AN AVERAGE TEMPERATURE BELOW
NORMAL. THE REMAINDER OF DECEMBER WAS MILD WITH HIGH TEMPERATURES AT
OR ABOVE FREEZING AND ALL DAYS WITH AN AVERAGE TEMPERATURE ABOVE
NORMAL. THERE WERE A TOTAL OF 11 DAYS IN DECEMBER WITH AN AVERAGE
TEMPERATURE AT LEAST 10 DEGREES ABOVE NORMAL.

THE AVERAGE MONTHLY TEMPERATURE FOR DECEMBER AT SOUTH BEND REGIONAL
AIRPORT WAS 35.1 DEGREES WHICH WAS 6.3 DEGREES ABOVE NORMAL. THIS
TIES WITH 1994 AS THE 9TH WARMEST DECEMBER ON RECORD. THE HIGHEST
TEMPERATURE WAS 57 ON THE 15TH AND THE COLDEST WAS 11 ON THE 10TH.
THE WARMEST DAY WAS DECEMBER 14TH WITH AN AVERAGE TEMPERATURE OF 47
WHICH WAS 18 DEGREES ABOVE NORMAL.

PRECIPITATION FOR THE MONTH WAS 2.62 INCHES WHICH WAS JUST 0.01
INCHES ABOVE NORMAL. THE GREATEST 24 HOUR PRECIPITATION WAS 1.30
INCHES ON THE 14TH. THIS WAS ALSO A RECORD FOR THE DAY. WHILE
PRECIPITATION WAS NORMAL FOR THE MONTH...SNOWFALL WAS NOT. A TOTAL
OF 5.7 INCHES WAS RECORDED IN SOUTH BEND WHICH WAS 11.6 INCHES BELOW
NORMAL. HOWEVER...THIS ONLY RANKS AS THE 23RD LEAST SNOWIEST
DECEMBER ON RECORD. DECEMBER 1912 WAS THE LEAST SNOWIEST DECEMBER
WITH ONLY A HALF INCH OF SNOW MEASURED.

THE TOTAL SNOWFALL FOR THE 2011-2012 WINTER SEASON THROUGH DECEMBER
31ST AT SOUTH BEND IS JUST 5.7 INCHES WHICH IS 16.8 INCHES BELOW
NORMAL. THIS RANKS AS THE 6TH LEAST SNOWIEST START TO A SNOWFALL
SEASON SINCE 1930. THE RECORD FOR LEAST SNOWIEST START WAS SET IN
1994 AND 1936 WHEN ONLY 2.4 INCHES OF SNOW WAS RECORDED THROUGH
DECEMBER 31ST.

$$
LASHLEY/NG





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