Climatological Report (Monthly)
Issued by NWS
Issued by NWS
216
CXUS53 KLOT 011517
CLMMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1017 AM CDT FRI AUG 01 2025
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...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF JULY 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 109 07/23/1934
LOW 46 07/05/1972
HIGHEST 96 07/24 92 07/13
07/30
07/31
LOWEST 61 07/18 60 07/01
AVG. MAXIMUM 87.0 85.0 2.0 84.3
AVG. MINIMUM 71.2 67.7 3.5 67.9
MEAN 79.1 76.3 2.8 76.1
DAYS MAX >= 90 12 8.0 4.0 5
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 11.28 2023
MINIMUM 0.31 1936
TOTALS 6.66 3.55 3.11 6.31
DAILY AVG. 0.21 0.11 0.10 0.20
DAYS >= .01 14 9.7 4.3 13
DAYS >= .10 9 5.5 3.5 8
DAYS >= .50 5 2.3 2.7 4
DAYS >= 1.00 1 0.8 0.2 2
GREATEST
24 HR. TOTAL 3.45 07/24 TO 07/25 2.59
DEGREE DAYS
HEATING TOTAL 0 1 -1 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 444 353 91 352
SINCE 1/1 819 657 162 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.2
HIGHEST WIND SPEED/DIRECTION 40/290 DATE 07/24
HIGHEST GUST SPEED/DIRECTION 65/260 DATE 07/24
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.59
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 19
NUMBER OF DAYS CLOUDY 7
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 12 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 6
LIGHT RAIN 18 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 14 FOG W/VIS <= 1/4 MILE 0
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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