Climatological Report (Monthly)
Issued by NWS

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CXUS53 KIWX 011611
CLMSBN

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
946 AM EDT SAT JUN 1 2019

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

...THE SOUTH BEND CLIMATE SUMMARY FOR THE MONTH OF MAY 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              97   05/27/2012
 LOW               24   05/06/1968
HIGHEST            85   05/18        MM      MM       94  05/28
LOWEST             34   05/14        MM      MM       42  05/07
AVG. MAXIMUM     67.7              70.0    -2.3     76.6
AVG. MINIMUM     46.6              48.6    -2.0     54.8
MEAN             57.2              59.3    -2.1
DAYS MAX >= 90      0               0.3    -0.3        3
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.4    -0.4        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.33   2018
 MINIMUM         0.80   1994
TOTALS           7.22              3.83    3.39     8.33
DAILY AVG.       0.23              0.12    0.11     0.27
DAYS >= .01        22              12.3     9.7       15
DAYS >= .10        16               7.3     8.7       11
DAYS >= .50         5               2.8     2.2        6
DAYS >= 1.00        1               0.8     0.2        2
GREATEST
 24 HR. TOTAL    1.77   05/27 TO 05/27

SNOWFALL (INCHES)
RECORDS
 TOTAL           10.0   1929
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1        45.7              66.6   -20.9     93.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   05/31 TO 05/31

DEGREE_DAYS
HEATING TOTAL     250               223      27       83
 SINCE 7/1       6583              6254     329     6469
COOLING TOTAL      17                46     -29      110
 SINCE 1/1         17                56     -39      110
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.7
HIGHEST WIND SPEED/DIRECTION    39/270    DATE  05/18
HIGHEST GUST SPEED/DIRECTION    57/250    DATE  05/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     76



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

&&

...MAYDAY, MAYDAY, MAY DAYS BRING RAIN AND COOL TEMPERATURES...

WHO WILL STOP THE RAIN? WE DON`T KNOW THAT ANSWER BUT WHAT WE DO KNOW
IS THAT MAY 2019 WILL BE REMEMBERED AS A COOL AND VERY WET MONTH WITH
OVER 7 INCHES OF RAINFALL AROUND THE SOUTH BEND AREA. WHAT IS
SURPRISING IS THAT MAY 2019 WAS NOT EVEN AS WET AS MAY 2018, WHICH
WAS THE WETTEST MAY ON RECORD WITH 8.33 INCHES. THE DIFFERENCE
THOUGH IS THAT THE RAIN THIS YEAR WAS SPREAD OVER THE ENTIRE MONTH
WITH ONLY ONE SMALL STRETCH OF CONSECUTIVE DRY DAYS. IN FACT, THE
TOP 4 WETTEST MONTHS OF MAY ON RECORD HAVE ALL OCCURRED SINCE 1996.

THE ONLY TWO DAYS IN A ROW IN WHICH NO RAINFALL AT ALL WAS RECORDED
WAS ON MAY 14TH AND 15TH. THERE WAS A STRETCH OF FOUR DAYS IN A ROW
WITH NO MEASURABLE PRECIPITATION, MAY 3RD THROUGH THE 6TH, BUT A
TRACE OF RAIN (LESS THAN 0.01 INCHES) OCCURRED ON THE 4TH AND 6TH.
MAY IS NORMALLY THE SECOND WETTEST MONTH OF THE YEAR WITH 3.83
INCHES OF RAIN. THIS YEAR, THAT AMOUNT WAS ALMOST DOUBLED AND
MEASURABLE RAIN FELL ON 22 DAYS.

WITH RAIN ON MOST DAYS THIS MONTH, A LOT OF CLOUDS HELPED KEEP
TEMPERATURES ON THE COOL SIDE. SURPRISINGLY, IT WAS NOT A
SIGNIFICANTLY COLD MONTH AS SEVERAL DAYS THAT SAW THUNDERSTORMS ALSO
HAD WARM TEMPERATURES BEFORE THEY DEVELOPED. THIS HELPED RAISE THE
MONTHLY AVERAGE TEMPERATURE.

MAY 2019 RANKED AS THE 40TH COOLEST ON RECORD WITH AN AVERAGE
TEMPERATURE OF 57.2 DEGREES, 2.1 DEGREES BELOW NORMAL. THE WARMEST
TEMPERATURE WAS 85 ON THE 18TH AND THE COLDEST WAS 34 ON THE 14TH.
THERE WERE 20 DAYS DURING THE MONTH WITH AN AVERAGE TEMPERATURES AT
OR BELOW NORMAL.

TOTAL PRECIPITATION FOR MAY WAS 7.22 INCHES, 3.39 INCHES ABOVE
NORMAL. THIS RANKED AS THE 4TH WETTEST MAY ON RECORD. THE GREATEST
24 HOUR RAINFALL WAS 1.77 INCHES ON THE 27TH. THIS WAS A SINGLE DAY
RECORD FOR THAT DATE.

THERE WAS NO SNOWFALL IN MAY. THE TOTAL SEASONAL SNOWFALL FOR THE
PERIOD OCTOBER 1ST TO MAY 31ST WAS 45.7 INCHES, 20.9 INCHES BELOW
NORMAL. THIS WAS THE 35TH LEAST SNOWIEST SEASONAL SNOWFALL ON RECORD.
THE SNOWIEST WAS 1977-78 WITH 172 INCHES.

$$
LASHLEY



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