Climatological Report (Annual)
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000
CXUS53 KIWX 011126
CLASBN

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
625 AM EST TUE JAN 1 2019

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

...THE SOUTH BEND CLIMATE SUMMARY FOR THE YEAR OF 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2018

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            94   06/18        MM      MM       92
                        05/28
LOWEST            -15   01/02        MM      MM       -6
AVG. MAXIMUM     58.2              58.8    -0.6     60.1
AVG. MINIMUM     40.5              40.8    -0.3     41.4
MEAN             49.3              49.8    -0.5
DAYS MAX >= 90     18               9.7     8.3        7
DAYS MAX <= 32     44              44.6    -0.6       36
DAYS MIN <= 32    149             122.7    26.3      118
DAYS MIN <= 0       7               5.3     1.7        7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        55.61   1990
 MINIMUM        25.15   1963
TOTALS          50.03             38.00   12.03    43.52
DAILY AVG.       0.14              0.10    0.04     0.12
DAYS >= .01       163             145.4    17.6      148
DAYS >= .10        93              78.3    14.7       88
DAYS >= .50        35              23.4    11.6       28
DAYS >= 1.00        8               7.2     0.8        8

SNOWFALL (INCHES)
RECORDS
 TOTAL          141.7   1978
TOTALS           73.6              66.6     7.0     50.4
SINCE 7/1        12.9              22.5    -9.6     32.4
SNOWDEPTH AVG.      1                MM      MM        0
DAYS >= TRACE      72              44.9    27.1       55
DAYS >= 1.0        24              20.4     3.6       15
GREATEST
 SNOW DEPTH        15   02/11                          7
                        02/10

DEGREE_DAYS
HEATING TOTAL    6514              6298     216     5809
 SINCE 7/1         MM              2391      MM       MM
COOLING TOTAL     941               773     168      692
 SINCE 1/1        941               773     168      692
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
HIGHEST WIND SPEED/DIRECTION    52/320    DATE  05/02
HIGHEST GUST SPEED/DIRECTION    72/310    DATE  05/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR          153
NUMBER OF DAYS PC             98
NUMBER OF DAYS CLOUDY        114

AVERAGE RH (PERCENT)     74



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

&&

SOUTH BEND 2018 CLIMATE YEAR IN REVIEW

...A VERY WET YEAR WITH SLIGHTLY BELOW NORMAL TEMPERATURES...

THE YEAR OF 2018 BEGAN BRUTALLY COLD IN JANUARY AND SAW AN EXTREME
RAIN EVENT IN FEBRUARY THAT LED TO HISTORIC FLOODING. THE SPRING WAS
COLD AND SNOWY, BUT SUMMER HAD NEAR NORMAL TEMPERATURES BUT ABOVE
NORMAL RAINFALL. FALL BEGAN WARM BUT ENDED COLD AND SNOWY. FINALLY
THE YEAR ENDED WITH A MILD DECEMBER, NEAR NORMAL PRECIPITATION AND
BELOW NORMAL SNOWFALL.

THE AVERAGE ANNUAL TEMPERATURE AT SOUTH BEND FOR 2018 WAS 49.3
DEGREES...0.5 DEGREES BELOW NORMAL. THIS WAS THE 46TH COLDEST YEAR
ON RECORD. THE HIGHEST TEMPERATURE FOR THE YEAR WAS 94 DEGREES ON
MAY 28TH AND JUNE 18TH. THE LOWEST TEMPERATURE FOR THE YEAR WAS 15
BELOW ZERO ON JANUARY 2ND.

THERE WERE 18 DAYS WITH A HIGH TEMPERATURE OF AT LEAST 90 DEGREES OR
WARMER.  THIS WAS ABOUT 8 DAYS ABOVE NORMAL. THERE WERE 149 DAYS
WITH A LOW TEMPERATURE AT OR BELOW FREEZING. THIS WAS ABOUT 26 DAYS
MORE THAN NORMAL. THERE WERE 7 DAYS WITH A LOW TEMPERATURE BELOW
ZERO WHICH IS ABOUT 2 DAYS MORE THAN NORMAL.

PRECIPITATION FOR THE YEAR WAS 50.03 INCHES WHICH WAS 12.03 INCHES
ABOVE THE NORMAL OF 38 INCHES. THIS RANKED AS THE 3RD WETTEST YEAR
ON RECORD AND MARKS ONLY THE 3RD TIME IN THE HISTORY OF SOUTH BEND
CLIMATE THAT THE ANNUAL PRECIPITATION HAS EXCEEDED 50 INCHES. THE
WETTEST YEAR ON RECORD WAS 1990 WHEN 55.61 INCHES WAS RECORDED.
THERE WERE 8 DAYS THIS YEAR WITH 1 OR MORE INCHES OF PRECIPITATION,
ABOUT 1 DAY MORE THAN NORMAL. THERE WERE 2 DAYS WITH 2 INCHES OR
MORE AND 1 DAY WITH 3 INCHES OR MORE. FEBRUARY SAW RECORD RAINFALL
AND WIDESPREAD HISTORIC FLOODING. SEE MONTHLY SUMMARY BELOW FOR MORE
DETAILS ON THAT HISTORIC EVENT.

SNOWFALL FOR THE CALENDAR YEAR WAS 73.6 INCHES...7.0 INCHES ABOVE
NORMAL. THIS RANKED AS THE 36TH SNOWIEST CALENDAR YEAR ON RECORD.
THERE WERE 24 DAYS WITH AN INCH OR MORE OF SNOW, ABOUT 4 DAYS ABOVE
NORMAL.

BELOW IS A MONTH BY MONTH REVIEW OF THE WEATHER IN 2018

JANUARY

JANUARY WAS A MONTH OF EXTREMES AND FLUCTUATIONS IN THE WEATHER AS
VERY COLD AND WARM TEMPERATURES WERE EXPERIENCED AT TIMES. THE MONTH
BEGAN WITH BITTERLY COLD ARCTIC AIR AND SUB ZERO TEMPERATURES ACROSS
THE REGION MAKING FOR ONE OF THE COLDEST NEW YEAR DAYS IN HISTORY.
THE COLD AIR SUBSIDED BRIEFLY BUT CAME BACK WITH MORE SUB ZERO AIR
DURING THE SECOND AND THIRD WEEKS OF THE MONTH.

THE DIFFERENCE BETWEEN THE WARMEST AND COLDEST TEMPERATURES WAS A
WHOPPING 73 DEGREES AND SEPARATED BY JUST 8 DAYS. THE LOWEST
TEMPERATURE OF THE MONTH WAS 15 DEGREES BELOW ZERO ON THE 2ND AND
THE WARMEST TEMPERATURE WAS 58 DEGREES ON THE 11TH. BOTH OF THESE
TEMPERATURES WERE DAILY RECORDS ON THEIR RESPECTIVE DATES.

DESPITE THE OVERALL FEELING THAT JANUARY WAS COLD, THERE WERE
ACTUALLY MORE DAYS WITH ABOVE NORMAL TEMPERATURES THAN BELOW NORMAL.
HOWEVER, MOST BELOW NORMAL DAYS WERE WELL BELOW NORMAL AND AS MUCH
AS 20 TO 30 DEGREES BELOW NORMAL. THIS WAS DUE TO BITTERLY COLD
ARCTIC AIR THAT INTRUDED DURING TWO SEPARATE PERIODS DURING THE
FIRST HALF OF THE MONTH.  THE PERIOD FROM JANUARY 19TH THROUGH THE
31ST DID NOT HAVE A DAY WITH A BELOW NORMAL AVERAGE TEMPERATURE.
THIS MILD END TO THE MONTH HELPED EVEN OUT THE COLD STRETCHES AND
LED TO A NEAR NORMAL AVERAGE MONTHLY TEMPERATURE.

THE AVERAGE MONTHLY TEMPERATURE WAS 23.7 DEGREES, 0.7 DEGREES BELOW
NORMAL. THIS RANKED AS JUST THE 46TH COLDEST JANUARY ON RECORD AND
TIED WITH 1903 AND 1917. THERE WERE 5 DAYS WITH TEMPERATURES BELOW
ZERO.

PRECIPITATION FOR THE MONTH WAS 1.93 INCHES WHICH WAS 0.36 INCHES
BELOW NORMAL. THIS RANKED AS THE 56TH DRIEST JANUARY ON RECORD.

DESPITE BELOW NORMAL PRECIPITATION, SNOWFALL WAS SLIGHTLY ABOVE
NORMAL. A TOTAL OF 22.0 INCHES FELL WHICH WAS 1.4 INCHES ABOVE
NORMAL. THIS RANKED AS THE 37TH SNOWIEST JANUARY ON RECORD.

FEBRUARY

...HISTORIC FEBRUARY PRECIPITATION AND FLOODING...

AN INCREDIBLE AND UNPRECEDENTED RAINFALL EVENT DURING THE THIRD WEEK
OF FEBRUARY LED TO CATASTROPHIC RECORD FLOODING IN THE SOUTH BEND
AREA. OVER 8 INCHES OF PRECIPITATION FELL DURING THE MONTH. THIS WAS
AN ALL-TIME RECORD FOR FEBRUARY AND SMASHED THE PREVIOUS RECORD OF
5.23 INCHES WHICH OCCURRED IN 1976. ABOUT 70 PERCENT OF THIS MONTHLY
PRECIPITATION OCCURRED AS RAINFALL OVER JUST 3 DAYS, THE 19TH, 20TH
AND 21ST. A TOTAL OF 3.73 INCHES FELL ON THE 20TH AND THIS WAS A
RECORD AMOUNT FOR THE DAY AS WELL AS THE ALL-TIME SINGLE DAY
PRECIPITATION RECORD FOR FEBRUARY. TO PUT THIS AMOUNT INTO
PERSPECTIVE, THE PREVIOUS SINGLE DAY FEBRUARY PRECIPITATION RECORD
WAS 1.95 INCHES SET ON FEBRUARY 1ST, 1968. THE 3.73 INCHES WAS ALSO
A SINGLE DAY RECORD FOR THE ENTIRE WINTER SEASON, WHICH RUNS FROM
DECEMBER THROUGH FEBRUARY, AS WELL AS ANY SINGLE DAY BETWEEN THE
MONTHS OF DECEMBER AND MAY.

THIS RECORD RAINFALL OCCURRED JUST 10 DAYS AFTER A LARGE SNOWSTORM
DROPPED MORE THAN A FOOT OF SNOW ACROSS NORTHERN INDIANA AND
SOUTHWEST LOWER MICHIGAN, WITH A SINGLE DAY RECORD OF 10.3 INCHES
FALLING ON FEBRUARY 9TH. THE FIRST 10 OUT OF 11 DAYS IN FEBRUARY
ACTUALLY SAW MEASURABLE SNOWFALL IN SOUTH BEND WITH A MAXIMUM SNOW
DEPTH OF 15 INCHES REPORTED ON THE 10TH AND 11TH. AN ESTIMATED 1.5
TO 1.75 INCHES OF LIQUID WAS CONTAINED WITHIN THIS SNOWPACK WHEN THE
RECORD RAINFALL OCCURRED. RUNOFF FROM THIS SNOWMELT AND RECORD
RAINFALL LED TO RAPID RISES ON AREA STREAMS, CREEKS AND RIVERS,
EVENTUALLY LEADING TO RECORD CRESTS ON MAIN RIVERS AND EXTENSIVE,
CATASTROPHIC FLOODING OVER NORTHERN INDIANA AND LOWER MICHIGAN.
SEVERAL RIVER FORECAST POINTS WITHIN THE ST. JOSEPH, KANKAKEE, AND
TIPPECANOE RIVER BASINS EXPERIENCED RECORD CRESTS AND FLOWS.

TEMPERATURE WISE IT WAS A NEAR NORMAL MONTH WITH AN AVERAGE
TEMPERATURE OF 28.4 DEGREES, JUST 0.6 DEGREES ABOVE NORMAL. THIS
RANKED AS THE 45TH WARMEST FEBRUARY ON RECORD. THE WARMEST
TEMPERATURE WAS 64 ON THE 20TH AND THE COLDEST TEMPERATURE WAS 5
BELOW ZERO ON THE 5TH. THE TEMPERATURE ALSO FELL BELOW ZERO ON THE
12TH TO 1 BELOW ZERO. THE MONTH WAS NEARLY EVENLY SPLIT BETWEEN A
COLD FIRST HALF AND A WARM SECOND HALF LEADING TO THE SLIGHTLY ABOVE
NORMAL MONTHLY AVERAGE TEMPERATURE.

THE RECORD TOTAL MONTHLY PRECIPITATION OF 8.08 INCHES WAS AN
INCREDIBLE 6.13 INCHES ABOVE NORMAL FOR FEBRUARY. THE PREVIOUS
MONTHLY RECORD WAS 5.23 INCHES SET IN 1976. THIS MONTHLY
PRECIPITATION AMOUNT WAS ACTUALLY MORE THAN 4 INCHES ABOVE ANY
MONTHLY NORMAL PRECIPITATION VALUE ACROSS THE ENTIRE YEAR. JULY IS
TYPICALLY THE WETTEST MONTH OF THE YEAR WITH NORMAL PRECIPITATION OF
4 INCHES.

FEBRUARY SNOWFALL WAS 29.6 INCHES, 14.6 INCHES ABOVE NORMAL. ALL OF
THIS SNOWFALL OCCURRED IN THE FIRST 17 DAYS OF THE MONTH WITH NO
MEASURABLE SNOWFALL AFTER FEBRUARY 17TH. THIS ALSO RANKED AS THE 7TH
SNOWIEST FEBRUARY ON RECORD.

MARCH

...IN LIKE A LION OUT LIKE A LION WITH A LAMB IN BETWEEN...

MARCH CAME IN LIKE A LION WITH A VERY SOGGY FIRST DAY OF THE MONTH
BUT ALSO WENT OUT LIKE A LION WITH A WET LAST DAY. IN BETWEEN, THE
MONTH WAS GENERALLY DRY, COOL AND QUIET.

THE FIRST WEEK OF MARCH SAW NEAR NORMAL TEMPERATURES BUT
ACCUMULATING SNOW OCCURRED ON THE 5TH AND TEMPERATURES TRENDED BACK
TO BELOW NORMAL FROM THE 7TH THROUGH THE 17TH. SEVERAL WEAK SYSTEMS
BROUGHT LIGHT NOW DURING THIS PERIOD AND A COUPLE DAYS OF LAKE
EFFECT SNOW DELIVERED SEVERAL INCHES OF ACCUMULATION ACROSS PARTS OF
NORTHWEST INDIANA AND SOUTHWEST LOWER MICHIGAN. THE 14TH THROUGH THE
25TH WAS DRY WITH TEMPERATURES GENERALLY STAYING BELOW NORMAL. NEAR
TO SLIGHTLY ABOVE NORMAL TEMPERATURES FINALLY RETURNED ON THE 27TH
BUT SO DID SOME MUCH NEEDED RAINFALL TO END THE MONTH.

THE MONTHLY AVERAGE TEMPERATURE WAS 34.2 WHICH WAS 3.3 DEGREES BELOW
NORMAL. THIS RANKED AS THE 40TH COLDEST MARCH ON RECORD. WHILE IT
WAS BELOW NORMAL, THERE WERE NO SIGNIFICANTLY COLD PERIODS DURING
THE ENTIRE MONTH. NO SINGLE DAY HAD AN AVERAGE TEMPERATURE DEPARTURE
MORE THAN 9 DEGREES BELOW NORMAL.

MONTHLY PRECIPITATION WAS 1.78 INCHES, 0.64 INCHES BELOW NORMAL.
THIS RANKED AS THE 28TH DRIEST MARCH ON RECORD. THE MAJORITY OF THE
PRECIPITATION FELL ON THE 1ST, AND BETWEEN THE 27TH AND 31ST.
BETWEEN MARCH 2ND AND MARCH 25TH, JUST 0.45 INCHES OF PRECIPITATION
OCCURRED. THIS RANKED AS THE 4TH DRIEST STRETCH ON RECORD FOR THIS
RANGE OF DATES.

SNOWFALL FOR THE MONTH WAS 7.6 INCHES WHICH IS 0.5 INCHES ABOVE
NORMAL. THIS TIED WITH 1926 AS THE 57TH SNOWIEST MARCH ON RECORD. A
DAILY SNOWFALL RECORD WAS SET ON MARCH 13TH WHEN 3.9 INCHES OF SNOW
WAS RECORDED.

APRIL

...A VERY COLD MONTH WITH NEAR NORMAL PRECIPITATION...

THE COLD SPRING CONTINUED THROUGH APRIL IN THE SOUTH BEND AREA WITH
RECORD COLD TEMPERATURES AT TIMES AND A RECORD COLD FIRST HALF OF
THE SPRING SEASON.

WHILE MARCH AND APRIL BOTH EXPERIENCED BELOW NORMAL TEMPERATURES,
APRIL WAS SIGNIFICANTLY COLDER COMPARED TO NORMAL. MORE THAN TWO
THIRDS OF THE DAYS EXPERIENCED BELOW NORMAL AVERAGE TEMPERATURES AND
17 DAYS HAD AVERAGE TEMPERATURES 10 DEGREES OR MORE BELOW NORMAL.
THE MONTH BEGAN VERY COLD AS 9 OF THE FIRST 10 DAYS SAW AN AVERAGE
TEMPERATURE OF AT LEAST 14 DEGREES BELOW NORMAL. THIS WAS THE
COLDEST FIRST 10 DAYS OF APRIL ON RECORD AT SOUTH BEND. THE PERIOD
OF MARCH 20TH THROUGH APRIL 20TH, THE FIRST MONTH OF SPRING, WAS
ALSO THE COLDEST ON RECORD FOR THIS PERIOD WITH AN AVERAGE
TEMPERATURE OF 36.5 DEGREES.

TEMPERATURES BRIEFLY WARMED INTO THE 60S AND 70S FROM THE 11TH
THROUGH THE 13TH BUT THIS WAS SHORT LIVED AS ANOTHER ARCTIC COLD
SHOT BROUGHT TEMPERATURES PLUMMETING BACK INTO THE 30S AND 40S WITH
LIGHT SNOW ACROSS THE REGION. TEMPERATURES WOULD MODERATE DURING THE
LATTER HALF OF THE MONTH BUT STILL REMAINED WELL BELOW NORMAL FOR
MUCH OF THE PERIOD.

THE AVERAGE MONTHLY TEMPERATURE WAS 39.9 DEGREES, 9.1 DEGREES BELOW
NORMAL. THIS RANKED AS THE 2ND COLDEST APRIL ON RECORD. THE WARMEST
TEMPERATURE WAS 74 ON THE 30TH AND THE COLDEST WAS 14 ON THE 8TH.
RECORD LOW TEMPERATURES WERE SET ON THE 17TH, 18TH AND 29TH.

PRECIPITATION FOR APRIL MEASURED 3.00 INCHES, 0.23 INCHES BELOW
NORMAL. THIS RANKED AS THE 59TH DRIEST APRIL ON RECORD. A DAILY
RAINFALL RECORD OF 1.20 INCHES OCCURRED ON THE 14TH.

SNOWFALL FOR THE MONTH WAS 1.5 INCHES, JUST 0.1 INCHES ABOVE NORMAL.
THIS RANKED AS THE 39TH SNOWIEST APRIL ON RECORD.

MAY

...A VERY WARM AND RECORD WET MAY...

AFTER A PROLONGED COLD START TO SPRING, THE SWITCH FLIPPED AND MAY
BECAME VERY WARM WITH NEAR RECORD HEAT TOWARDS THE END OF THE MONTH.
IT WAS ALSO A RECORD WET MONTH WITH PRECIPITATION 4.50 INCHES ABOVE
NORMAL. TWO EVENTS PRODUCED OVER AN INCH OF RAINFALL AND ONE OF
THESE PRODUCED OVER TWO INCHES IN A SINGLE DAY PERIOD. A THIRD
EVENT...FROM SUB TROPICAL STORM ALBERTO, PRODUCED NEARLY AN INCH OF
RAINFALL AND PUSHED THE MONTHLY TOTAL RAINFALL INTO THE NEW RECORD
TERRITORY.

MAY BEGAN WARM AND WET WITH HIGHS IN THE 80S AND AROUND 2.5 INCHES
OF RAINFALL IN THE FIRST 3 DAYS. THIS WARMTH WOULD CONTINUE THROUGH
MOST OF THE MONTH AS THERE WERE JUST 5 DAYS OF BELOW NORMAL
TEMPERATURES AND 12 DAYS WITH AVERAGE TEMPERATURES OF 10 DEGREES OR
MORE ABOVE NORMAL, INCLUDING THE LAST 7 DAYS. THE PERIOD FROM MAY
11TH THROUGH THE 15TH WAS RELATIVELY COOL BUT VERY WET WITH
MEASURABLE PRECIPITATION EACH DAY. THIS PERIOD SAW A TOTAL OF 3.22
INCHES OF RAINFALL. THERE WAS A TOTAL OF 15 DAYS IN MAY WITH
MEASUREABLE RAINFALL AND THE GREATEST 24 HOUR PRECIPITATION FELL ON
THE 14TH WITH 2.26 INCHES MEASURED.

THE AVERAGE MONTHLY TEMPERATURE FOR MAY WAS 65.7 DEGREES, 6.4
DEGREES ABOVE NORMAL. THIS RANKED AS THE 7TH WARMEST MAY ON RECORD.
THERE WERE 3 DAYS WITH A HIGH TEMPERATURE OF 90 DEGREES OR HIGHER
AND THE HIGHEST TEMPERATURE WAS 94 ON THE 28TH. THIS WAS THE 4TH
WARMEST HIGH TEMPERATURE EVER RECORDED IN MAY. THE WARMEST WAS 97
WHICH OCCURRED IN 2012.

PRECIPITATION FOR MAY WAS 8.33 INCHES, 4.50 INCHES ABOVE NORMAL.
THIS RANKED AS THE WETTEST MAY ON RECORD, BREAKING THE PREVIOUS
RECORD OF 8.09 INCHES WHICH OCCURRED IN 1996.

JUNE

...A MIX OF SUMMER HEAT AND A SPRING CHILL...

THE MONTH OF JUNE SAW FREQUENT EPISODES OF RAIN, AN EXTENDED STRETCH
OF DAYS WITH TEMPERATURES BELOW NORMAL, AND A FEW DAYS WITH DOUBLE-
DIGIT TEMPERATURE DEPARTURES ABOVE NORMAL. FROM JUNE 20TH TO 27TH
THE AVERAGE TEMPERATURE WAS RATHER SPRING-LIKE, RUNNING 1 TO 7
DEGREES BELOW NORMAL. ALTERNATIVELY, SUMMER ARRIVED EARLY ON JUNE
17TH AND 18TH. HIGH TEMPERATURES SOARED INTO THE 90S; AN AVERAGE
TEMPERATURE DEPARTURE OF 13 DEGREES.

THE AVERAGE TEMPERATURE FOR JUNE WAS 70.0 DEGREES, 0.9 DEGREES ABOVE
NORMAL. THIS RANKED AS THE 49TH WARMEST JUNE ON RECORD. THERE WERE 5
DAYS WITH A HIGH TEMPERATURE OF 90 DEGREES OR HIGHER. THE HIGHEST
TEMPERATURE WAS 94 ON THE 18TH, WHICH RANKS AS THE 38TH WARMEST DAY
IN THE MONTH OF JUNE ON RECORD.

PRECIPITATION FOR JUNE WAS 4.71 INCHES, 0.92 INCHES ABOVE NORMAL.
THIS RANKED AS THE 33RD WETTEST JUNE ON RECORD. THE GREATEST SINGLE-
DAY RAINFALL TOTAL THIS MONTH WAS 0.97 INCHES ON THE 21ST.


JULY

...NEAR NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION FOR
JULY...

JULY EXPERIENCED A VARIETY OF WEATHER RANGING FROM HOT, HUMID AND
DRY TO COOL AND WET AT TIMES. WHILE PRECIPITATION AT SOUTH BEND
INTERNATIONAL AIRPORT WAS BELOW NORMAL FOR THE MONTH, OTHER PARTS OF
THE REGION EXPERIENCED ABOVE NORMAL RAINFALL, PRIMARILY FROM AN
UNUSUALLY STRONG AND SLOW MOVING LOW PRESSURE SYSTEM THAT BROUGHT
BELOW NORMAL TEMPERATURES AND SEVERAL DAYS OF RAINFALL DURING THE
LATTER PORTION OF THE MONTH.

THE AVERAGE MONTHLY TEMPERATURE WAS 72.6, JUST 0.4 DEGREES BELOW
NORMAL. THIS RANKED AS THE 55TH COOLEST JULY ON RECORD, TIED WITH
1896 AND 1900. THERE WERE 5 DAYS WITH A HIGH TEMPERATURE OF 90
DEGREES OR WARMER, ALL OCCURRING DURING THE FIRST 15 DAYS OF THE
MONTH. THE HIGHEST TEMPERATURE WAS 91 ON THE 1ST, 3RD, 4TH AND 15TH.
THE AVERAGE TEMPERATURE FROM JULY 16TH TO THE 31ST WAS JUST 70.3
DEGREES. THIS WAS THE 19TH COOLEST LATTER HALF OF JULY ON RECORD.

PRECIPITATION FOR THE MONTH WAS 3.39 INCHES, 0.61 INCHES BELOW
NORMAL. THIS RANKED AS THE 68TH DRIEST JULY ON RECORD.  MEASUREABLE
PRECIPITATION FELL ON 9 DAYS AND 80 PERCENT OF THE TOTAL MONTHLY
PRECIPITATION FELL ON JUST 3 DAYS FROM THE 20TH TO 22ND.

AUGUST

...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION FOR THE
MONTH...

THE AVERAGE TEMPERATURE WAS ABOVE NORMAL FOR THE MONTH. MUCH OF THE
FIRST HALF OF THE MONTH FEATURED ABOVE NORMAL TEMPERATURES WITH HIGH
HUMIDITY. A PERIOD OF BELOW NORMAL TEMPERATURES WAS EXPERIENCED
DURING THE MIDDLE PORTIONS OF THE MONTH HOWEVER. PRECIPITATION WAS
ABOVE NORMAL FOR MUCH OF NORTHERN INDIANA INCLUDING THE SOUTH BEND
INTERNATIONAL AIRPORT, ALTHOUGH SLIGHTLY BELOW NORMAL PRECIPITATION
WAS OBSERVED JUST TO THE NORTH ACROSS PORTIONS OF SOUTH CENTRAL
LOWER MICHIGAN.

THE AVERAGE MONTHLY TEMPERATURE WAS 72.8, OR 1.5 DEGREES ABOVE
NORMAL. THIS RANKED AS THE 35TH WARMEST AUGUST ON RECORD.
HIGH TEMPERATURES REACHED 90 OR ABOVE FOR ONLY 2 DAYS ON THE 4TH AND
5TH. THE HIGHEST TEMPERATURE WAS 91 ON THE 5TH. DESPITE THE ABOVE
NORMAL TEMPERATURES FOR THE MONTH, A RELATIVELY COOL PERIOD WAS
EXPERIENCED FROM THE 20TH TO 25TH WITH HIGH TEMPERATURES IN THE
MIDDLE AND UPPER 70S.

PRECIPITATION FOR THE MONTH WAS 5.44 INCHES, 1.68 INCHES ABOVE
NORMAL. THIS RANKED AS THE 20TH WETTEST AUGUST ON RECORD.
MEASUREABLE PRECIPITATION FELL ON 14 DAYS AND OVER HALF OF THE
MONTHLY PRECIPITATION FELL WITHIN THE FIRST 7 DAYS OF THE MONTH. THE
GREATEST DAILY PRECIPITATION TOTAL OF 1.94 OCCURRED ON THE 6TH.

SEPTEMBER

...A WARM AND SLIGHTLY DRY SEPTEMBER IN THE SOUTH BEND AREA...

OVERALL IT WAS A RELATIVELY UNEVENTFUL START TO THE FALL SEASON. THE
MONTHLY AVERAGE TEMPERATURE WAS OVER 3 DEGREES ABOVE NORMAL WHILE
MONTHLY PRECIPITATION WAS AROUND ONE HALF INCH BELOW NORMAL IN THE
SOUTH BEND AREA FOR SEPTEMBER. HIGH TEMPERATURES REACHED 90 DEGREES
ON 3 DAYS AND LOW TEMPERATURES DROPPED BELOW 40 DEGREES ON ONE DAY,
THE 29TH. SEVERE WEATHER IN THE FORM OF ISOLATED DAMAGING WINDS DID
OCCUR ACROSS THE REGION ON A FEW DAYS IN SEPTEMBER BUT THERE WAS NO
WIDESPREAD SEVERE WEATHER.

THE AVERAGE MONTHLY TEMPERATURE WAS 67.1 DEGREES, 3.2 DEGREES ABOVE
NORMAL. THIS RANKED AS THE 25TH WARMEST SEPTEMBER ON RECORD. TOTAL
MONTHLY PRECIPITATION WAS 2.95 INCHES, 0.58 INCHES BELOW NORMAL.
THIS WAS THE 57TH DRIEST SEPTEMBER ON RECORD. THERE WAS NO SNOWFALL.


OCTOBER

...A SLIGHTLY COOL AND WET OCTOBER...

DESPITE A VERY WARM START TO THE MONTH OF OCTOBER, THE WEATHER
PATTERN QUICKLY CHANGED AND THE MAJORITY OF THE MONTH WAS COOL WITH
PERIODS OF RAIN AND EVEN ONE DAY WITH SOME WET SNOWFLAKES. DESPITE
THE PROLONGED COOL PERIOD, THE AVERAGE MONTHLY TEMPERATURE WAS ONLY
SLIGHTLY BELOW NORMAL DUE TO THE VERY WARM START TO THE MONTH
OFFSETTING THE COOLER DAYS.

ALL BUT ONE OF THE FIRST TEN DAYS OF OCTOBER HAD HIGH TEMPERATURES
IN THE 70S AND 80S. THE WARMEST TEMPERATURE OF THE MONTH OCCURRED ON
THE 3RD AND 8TH WITH A HIGH OF 85. THE FIRST TEN DAYS OF OCTOBER
2018 RANKED AS THE 8TH WARMEST ON RECORD FOR THAT PERIOD. IT WAS
ALSO VERY WET DURING THIS STRETCH WITH OVER 3 INCHES OF RAINFALL
WHICH INCLUDED THREE SEPARATE DAYS SEEING MORE THAN 0.90 INCHES OF
RAIN.

THE WEATHER PATTERN ABRUPTLY SHIFTED AFTER THE 10TH AND A STRETCH OF
19 CONSECUTIVE DAYS WITH BELOW NORMAL TEMPERATURES FOLLOWED. THIS
PERIOD FROM THE 11TH TO THE 29TH RANKED AS THE 3RD COLDEST ON RECORD
FOR THAT PERIOD. WHILE IT WAS CLOUDY AND COOL DURING THIS STRETCH,
PRECIPITATION WAS BELOW NORMAL WITH JUST UNDER AN INCH FALLING. A
STRONG AND COLD WEATHER SYSTEM BROUGHT THE FIRST WET SNOWFLAKES OF
THE SEASON TO THE REGION ON THE 20TH. A MIX OF SHOWERS AND
THUNDERSTORMS WITH WET SNOW, GRAUPEL AND HAIL OCCURRED ACROSS THE
REGION. THERE WAS NO ACCUMULATION OF SNOW AND ONLY A TRACE OF
SNOWFALL WAS RECORDED.

THE AVERAGE MONTHLY TEMPERATURE WAS 51.1 DEGREES, 1.0 DEGREES BELOW
NORMAL. THIS RANKED AS THE 32ND COOLEST OCTOBER ON RECORD. THE
WARMEST TEMPERATURE WAS 85 ON THE 3RD AND 8TH AND THE COLDEST
TEMPERATURE WAS 26 ON THE 24TH. THERE WERE 4 DAYS DURING THE MONTH
WITH A LOW TEMPERATURE OF 32 DEGREES OR COLDER.

A TOTAL OF 4.58 INCHES OF PRECIPITATION FELL, WHICH WAS 1.26 INCHES
ABOVE NORMAL. THIS RANKED AS THE 25TH WETTEST OCTOBER ON RECORD. A
TOTAL OF 13 DAYS DURING THE MONTH EXPERIENCED MEASURABLE
PRECIPITATION.

SNOWFALL WAS JUST A TRACE, WHICH WAS 0.4 INCHES BELOW NORMAL.


NOVEMBER

...WAS NOVEMBER AS COLD, WET AND SNOWY AS WE THINK?...

NOVEMBER 2018 CONTINUED THE COLD TREND STARTED IN MID OCTOBER AND
MAY WELL BE REMEMBERED AS A COLD, WET AND SNOWY MONTH. HOWEVER, IS
THIS REALLY AN ACCURATE DEPICTION COMPARED TO NORMAL?

IT INDEED WAS A COLD MONTH TO END THE FALL SEASON. THREE-QUARTERS OF
THE DAYS IN NOVEMBER HAD AN AVERAGE TEMPERATURE BELOW NORMAL AND
NINE OF THESE DAYS WERE AT LEAST 10 DEGREES BELOW NORMAL. THERE WERE
ONLY 4 DAYS WITH A HIGH TEMPERATURE OF 50 DEGREES OR WARMER, AND ALL
FOUR OF THOSE OCCURRED IN A ROW FROM THE 3RD TO THE 6TH. THIS
NOVEMBER TIES WITH NOVEMBER 1972 AS HAVING THE FEWEST NUMBER OF DAYS
WITH HIGH TEMPERATURES ABOVE 50 DEGREES.

THE WARMEST DAY OF THE MONTH IN TERMS OF DEPARTURE FROM NORMAL WAS
THE 24TH. WITH A HIGH TEMPERATURE OF 47 AND A LOW OF 39, THE AVERAGE
DAILY TEMPERATURE WAS 43 WHICH WAS 6 DEGREES ABOVE NORMAL. IN
CONTRAST, THE COLDEST DAY WAS THE 10TH. THE HIGH TEMPERATURE WAS
ONLY 29, A DAILY RECORD FOR COLDEST MAXIMUM TEMPERATURE ON THAT
DATE, AND THE LOW WAS 19 FOR AN AVERAGE TEMPERATURE OF 24. THIS WAS
19 DEGREES BELOW NORMAL.

THE AVERAGE MONTHLY TEMPERATURE WAS 33.9, 6.8 DEGREES BELOW NORMAL.
THIS RANKED AS THE 6TH COLDEST NOVEMBER ON RECORD. THE AVERAGE HIGH
TEMPERATURE WAS JUST 39.1 WHICH RANKED AS THE FIRST COLDEST AVERAGE
HIGH TEMPERATURE ON RECORD FOR NOVEMBER.

PRECIPITATION FOR THE MONTH WAS 3.09 INCHES, 0.18 INCHES BELOW
NORMAL. THIS RANKED AS THE 78TH DRIEST NOVEMBER ON RECORD. IT MAY
HAVE SEEMED AS IF NOVEMBER WAS A WET MONTH BUT THESE NUMBERS,
COMPARED TO NORMAL, TELL A DIFFERENT STORY. PART OF THE REASON MAY
BE THAT MEASUREABLE PRECIPITATION OCCURRED ON 20 OUT OF 30 DAYS AND
WAS EVENLY DISTRIBUTED THROUGH THE MONTH. THIS CAN BE SEEN BY
LOOKING AT THE LONGEST STRETCH OF DAYS IN A ROW WITH NO
PRECIPITATION OBSERVED, WHICH WAS JUST TWO (THE 7TH AND 8TH). THE
LONGEST STRETCH OF DAYS IN A ROW WITH MEASURABLE PRECIPITATION WAS
7, FROM THE 23RD THROUGH THE 29TH.  THERE WERE TWO DAYS WITH A HALF
INCH OR MORE OF PRECIPITATION AND NO SINGLE DAY HAD MORE THAN 0.76
INCHES DURING THE MONTH.

THE COLD TEMPERATURES AND SLIGHTLY BELOW NORMAL PRECIPITATION DID
ACTUALLY COMBINE TO BRING ABOVE NORMAL SNOWFALL. A TOTAL OF 12.1
INCHES OF SNOW FELL IN NOVEMBER, 7.3 INCHES ABOVE NORMAL. WHILE THIS
SEEMED LIKE A LOT OF SNOW, IT ACTUALLY RANKED AS JUST THE 21ST
SNOWIEST NOVEMBER ON RECORD. IT WAS THE SNOWIEST NOVEMBER SINCE 2014
WHEN 19.1 INCHES WAS MEASURED. A TRACE OR MORE OF SNOW FELL ON 14
DAYS WITH THE GREATEST SINGLE DAY AMOUNT OF 3.4 INCHES FALLING ON
THE 26TH.

OVERALL, IT INDEED WAS A COLD NOVEMBER WITH BELOW NORMAL
PRECIPITATION BUT ABOVE NORMAL SNOWFALL.

DECEMBER

...A MILD START TO METEOROLOGICAL WINTER...

AFTER A COLD NOVEMBER WITH ABOVE NORMAL SNOWFALL, THE FIRST MONTH OF
THE METEOROLOGICAL WINTER SEASON WAS MILD WITH NEAR NORMAL
PRECIPITATION AND BELOW NORMAL SNOWFALL. DECEMBER PRECIPITATION WAS
ACTUALLY AN INCH BELOW NORMAL ON THE 30TH, BUT MODERATE TO LOCALLY
HEAVY RAINFALL OF OVER AN INCH ON THE LAST DAY OF THE MONTH AND YEAR
BROUGHT THE MONTHLY PRECIPITATION TOTAL BACK UP TO SLIGHTLY
ABOVE NORMAL.

IT WAS A RATHER UNEVENTFUL FIRST MONTH OF WINTER WITH MILD
TEMPERATURES AND LITTLE IN THE WAY OF SNOW. DECEMBER BEGAN MILD AND
WET WITH JUST UNDER THREE QUARTERS OF AN INCH OF RAINFALL ON THE
FIRST TWO DAYS AND A HIGH TEMPERATURE ON THE 2ND OF 51. THE COLDEST
PERIOD OF THE MONTH AND THE ONLY DAYS WITH AN AVERAGE TEMPERATURE
BELOW NORMAL OCCURRED FROM THE 4TH THROUGH THE 11TH. ALL BUT A TENTH
OF AN INCH OF THE MONTHLY SNOWFALL FELL DURING THIS PERIOD, WHICH
WAS JUST 0.7 INCHES. THE REMAINDER OF DECEMBER WAS MILD AND
RELATIVELY DRY UNTIL THE 31ST.

THE AVERAGE MONTHLY TEMPERATURE WAS 32.7, 3.9 DEGREES ABOVE NORMAL.
THIS RANKED AS THE 25TH WARMEST DECEMBER ON RECORD, TIED WITH 1987,
1975 AND 1936. THIS MONTHLY AVERAGE TEMPERATURE WAS JUST OVER A
DEGREE COLDER THAN THE NOVEMBER AVERAGE TEMPERATURE. NORMALLY THE
DECEMBER MONTHLY AVERAGE TEMPERATURE IS ABOUT 12 DEGREES COLDER THAN
NOVEMBER. THE WARMEST TEMPERATURE WAS 54 ON THE 28TH AND THE COLDEST
WAS 10 ON THE 9TH.

MONTHLY PRECIPITATION WAS 2.75 INCHES, 0.14 INCHES ABOVE NORMAL.
THIS RANKED AS THE 51ST WETTEST MONTH ON RECORD. MOST OF THIS
PRECIPITATION FELL ON THE FIRST TWO DAYS AND LAST DAY OF THE MONTH.
THERE WERE 10 DAYS WITH MEASURABLE PRECIPITATION.

SNOWFALL FOR THE MONTH WAS WELL BELOW NORMAL WITH JUST 0.8 INCHES
FALLING. THIS WAS 16.5 INCHES BELOW NORMAL AND RANKED AS THE 4TH
LEAST SNOWIEST DECEMBER ON RECORD. MEASURABLE SNOW ONLY FELL ON 3
DAYS, THE 4TH, 6TH AND 29TH.

LASHLEY
$$


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