648
CXUS53 KIWX 011609
CLMSBN
CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1209 PM EDT MON JUN 01 2026
...............................
..THE SOUTH BEND CLIMATE SUMMARY FOR THE MONTH OF MAY 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2026
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 05/17 MM MM 89 05/15
LOWEST 28 05/02 MM MM 35 05/09
AVG. MAXIMUM 69.9 70.1 -0.2 69.0
AVG. MINIMUM 46.0 48.1 -2.1 47.2
MEAN 58.0 59.1 -1.1
DAYS MAX >= 90 0 0.7 -0.7 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 1 0.6 0.4 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.33 2018
MINIMUM 0.80 1994
TOTALS 1.70 4.20 -2.50 2.08
DAILY AVG. 0.06 0.14 -0.08 0.07
DAYS >= .01 8 13.4 -5.4 10
DAYS >= .10 7 8.0 -1.0 4
DAYS >= .50 0 3.1 -3.1 2
DAYS >= 1.00 0 0.9 -0.9 0
GREATEST
24 HR. TOTAL 0.31 05/23 TO 05/23
SNOWFALL (INCHES)
RECORDS
TOTAL 10.0 1929
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 94.8 64.5 30.3 38.1
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL 0.0
DEGREE DAYS
HEATING TOTAL 254 231 23 235
SINCE 7/1 5849 6358 -509 5583
COOLING TOTAL 44 48 -4 30
SINCE 1/1 59 56 3 35
............................................................
WIND (MPH)
AVERAGE WIND SPEED 8.6
HIGHEST WIND SPEED/DIRECTION 32/220 DATE 05/04
HIGHEST GUST SPEED/DIRECTION 46/210 DATE 05/04
46/260 05/18
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.29
NUMBER OF DAYS FAIR 19
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 64
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 6
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 1
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
..A COOLER AND DRIER THAN NORMAL MAY
ON THE HEELS OF A VERY WARM AND WET APRIL, MAY BEGAN ON A CHILLY
NOTE WITH 13 OF THE FIRST 15 DAYS RECORDING BELOW-NORMAL DAILY
TEMPERATURE DEPARTURES. INSTANCES OF LOWS NEAR OR BELOW FREEZING
RESULTED IN PATCHY FROST, VERY NEAR WHEN WE TYPICALLY EXPERIENCE OUR
FINAL SPRING FROST. A NEW RECORD LOW OF 28 DEGREES WAS SET IN SOUTH
BEND ON MAY 2ND, BREAKING THE PREVIOUS DAILY RECORD OF 29 DEGREES
SET IN 1907. THE SECOND HALF OF THE MONTH FEATURED FOUR CONSECUTIVE
DAYS WITH HIGHS IN THE 80S (16TH THROUGH 19TH) FOLLOWED BY A STRONG
COLD FRONT THAT SENT DAILY AVERAGE TEMPERATURES BACK BELOW NORMAL.
THE MONTH ENDED WITH AN OMEGA BLOCK OVER THE MIDWEST BRINGING WARM
AND DRY CONDITIONS. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 58.0
DEGREES, WHICH WAS 1.1 DEGREES BELOW NORMAL AND TIES FOR THE 50TH
COOLEST MAY ON RECORD. THIS WAS THE COOLEST MAY SINCE 2019.
RAIN DURING MAY WAS GENERALLY LIGHT, WITH THE HIGHEST SINGLE DAY
TOTAL BEING 0.31" ON MAY 23RD. WITH A LACK OF WIDESPREAD, HEAVY
RAINFALL, THIS ALLOWED AREA CREEKS AND STREAMS TO FALL OUT OF ACTION
OR MINOR FLOOD STAGE. DRIER CONDITIONS BEGAN TO DEVELOP BY THE END
OF THE MONTH WITH THE AFOREMENTIONED OMEGA BLOCK LEADING TO NO
PRECIPITATION BEING MEASURED AT SOUTH BEND FROM MAY 25TH THROUGH THE
31ST. PRECIPITATION TOTALED 1.70 INCHES FOR THE MONTH AT SOUTH BEND
(NOTE: MISSING DATA ON THE 16TH AND 22ND). 1.70 INCHES IS 2.50
INCHES BELOW NORMAL AND RANKS WITHIN THE TOP 20 DRIEST ON RECORD.
NO SNOW WAS RECORDED AT SOUTH BEND THIS MONTH, BUT OTHER OBSERVERS
IN THE AREA DID RECORD A TRACE OF SNOW ON THE 1ST.
BROWN/JOHNSON
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