Climatological Report (Monthly)
Issued by NWS
Issued by NWS
054
CXUS53 KLOT 011510
CLMMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1010 AM CDT THU MAY 01 2025
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...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 92 04/30/1942
LOW 10 04/07/1982
HIGHEST 85 04/28 81 04/14
04/16
LOWEST 27 04/08 33 04/06
AVG. MAXIMUM 61.1 59.9 1.2 62.8
AVG. MINIMUM 43.4 41.4 2.0 44.9
MEAN 52.3 50.6 1.7 53.8
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 2 3.3 -1.3 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.33 1947
MINIMUM 0.45 1971
TOTALS 3.19 3.57 -0.38 4.48
DAILY AVG. 0.11 0.12 -0.01 0.15
DAYS >= .01 13 11.5 1.5 14
DAYS >= .10 7 6.9 0.1 7
DAYS >= .50 1 2.5 -1.5 2
DAYS >= 1.00 1 0.9 0.1 2
GREATEST
24 HR. TOTAL 1.67 04/02 TO 04/02 1.49
DEGREE DAYS
HEATING TOTAL 388 439 -51 343
SINCE 7/1 4915 5551 -636 MM
COOLING TOTAL 13 9 4 17
SINCE 1/1 13 11 2 MM
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WIND (MPH)
AVERAGE WIND SPEED 11.4
HIGHEST WIND SPEED/DIRECTION 32/260 DATE 04/21
HIGHEST GUST SPEED/DIRECTION 50/200 DATE 04/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.71
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 15
AVERAGE RH (PERCENT) 60
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 6 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 5
LIGHT RAIN 15 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 2 SLEET 0
FOG 11 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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