Climatological Report (Monthly)
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000
CXUS53 KIWX 011030
CLMSBN

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
624 AM EDT TUE MAY 1 2018

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

...THE SOUTH BEND CLIMATE SUMMARY FOR THE MONTH OF APRIL 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  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              91   04/30/1942
 LOW               11   04/08/1972
HIGHEST            74   04/30        MM      MM       82  04/26
LOWEST             14   04/08        MM      MM       27  04/08
AVG. MAXIMUM     50.5              59.5    -9.0     63.5
AVG. MINIMUM     29.3              38.6    -9.3     40.8
MEAN             39.9              49.0    -9.1
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               0.2     0.8        0
DAYS MIN <= 32     19               7.9    11.1        8
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.20   1947
 MINIMUM         0.50   1971
TOTALS           3.00              3.23   -0.23     3.09
DAILY AVG.       0.10              0.11   -0.01     0.10
DAYS >= .01        12              13.2    -1.2       14
DAYS >= .10         7               7.1    -0.1       10
DAYS >= .50         2               2.1    -0.1        2
DAYS >= 1.00        1               0.5     0.5        0
GREATEST
 24 HR. TOTAL    1.20   04/14 TO 04/14

SNOWFALL (INCHES)
RECORDS
 TOTAL           20.0   1920
TOTALS            1.5               1.4     0.1      0.6
SINCE 7/1        93.1              66.6    26.5     42.2
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.4    -0.4        0
GREATEST
 SNOW DEPTH         T   04/19
 24 HR TOTAL      0.9   04/04 TO 04/04

DEGREE_DAYS
HEATING TOTAL     746               487     259      390
 SINCE 7/1       6386              6031     355     5229
COOLING TOTAL       0                 9      -9       11
 SINCE 1/1          0                10     -10       11
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.4
HIGHEST WIND SPEED/DIRECTION    33/300    DATE  04/04
HIGHEST GUST SPEED/DIRECTION    43/300    DATE  04/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     65


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

&&

...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.

$$
LASHLEY



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