Climatological Report (Seasonal)
Issued by NWS

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CXUS53 KIWX 020939 CCA
CLSSBN

CLIMATE REPORT...CORRECTION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
535 AM EDT SAT JUN 2 2018

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

...THE SOUTH BEND CLIMATE SUMMARY FOR THE SPRING SEASON, FROM
3/1/2018 TO 5/31/2018...

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              97   05/27/2012
 LOW              -13   03/08/1943
HIGHEST            94   05/28        MM      MM       85
LOWEST             14   04/08        MM      MM       12
AVG. MAXIMUM     56.8              58.7    -1.9     58.3
AVG. MINIMUM     36.4              38.5    -2.1     38.9
MEAN             46.6              48.6    -2.0
DAYS MAX >= 90      3               0.3     2.7        0
DAYS MAX <= 32      4               3.6     0.4        6
DAYS MIN <= 32     47              28.5    18.5       29
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        19.83   1976
 MINIMUM         4.24   1971
TOTALS          13.11              9.48    3.63    12.24
DAILY AVG.       0.14              0.10    0.04     0.13
DAYS >= .01        39              38.2     0.8       40
DAYS >= .10        22              20.7     1.3       26
DAYS >= .50         9               6.2     2.8       10
DAYS >= 1.00        3               1.5     1.5        2
GREATEST
 24 HR. TOTAL    2.26

SNOWFALL (INCHES)
RECORDS
 TOTAL          999.0   2014
 24 HR TOTAL       MM
TOTALS            9.1               8.5     0.6      8.5
SINCE 7/1        93.1              66.6    26.5     42.2
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE      16               7.4     8.6       11
DAYS >= 1.0         3               2.6     0.4        3
GREATEST
 SNOW DEPTH         2   03/14                          2
                        03/08
                        03/13
 24 HR TOTAL      3.9   MM

DEGREE_DAYS
HEATING TOTAL    1776              1565     211     1525
 SINCE 7/1         MM              6254      MM       MM
COOLING TOTAL     110                55      55       40
 SINCE 1/1        110                56      54       40
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
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           0.40
NUMBER OF DAYS FAIR           48
NUMBER OF DAYS PC             22
NUMBER OF DAYS CLOUDY         22

AVERAGE RH (PERCENT)     66



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

&&


...SPRING SEASON SUMMARY 2018...

THE 2018 SPRING SEASON AT SOUTH BEND HAD AN AVERAGE TEMPERATURE OF
46.6 DEGREES, WHICH WAS 2.0 DEGREES BELOW NORMAL. THIS RANKED AS THE
33RD COLDEST SPRING ON RECORD.

PRECIPITATION FOR THE SEASON WAS 13.11 INCHES, 3.63 INCHES ABOVE
NORMAL. THIS RANKED AS THE 9TH WETTEST SPRING ON RECORD.

SNOWFALL FOR THE SEASON WAS 9.1 INCHES, 0.6 INCHES ABOVE NORMAL.
THIS RANKED AS THE 65TH SNOWIEST SPRING SEASON ON RECORD.

BELOW IS A MONTH BY MONTH SUMMARY OF THE SPRING SEASON IN THE SOUTH
BEND AREA.

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.

$$


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