Climatological Report (Monthly)
Issued by NWS
Issued by NWS
632
CXUS53 KLOT 011449
CLMPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
949 AM CDT MON SEP 01 2025
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...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 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 100 08/24/2023
LOW 47 08/31/2009
HIGHEST 96 08/09 98 08/27
LOWEST 50 08/31 52 08/22
AVG. MAXIMUM 82.5 82.0 0.5 83.0
AVG. MINIMUM 64.0 64.7 -0.7 64.5
MEAN 73.2 73.4 -0.2 73.7
DAYS MAX >= 90 7 4.0 3.0 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 9.91 2007
MINIMUM 0.73 2003
TOTALS 3.26 3.70 -0.44 1.83
DAILY AVG. 0.11 0.12 -0.01 0.06
DAYS >= .01 8 9.6 -1.6 9
DAYS >= .10 8 6.4 1.6 7
DAYS >= .50 2 2.4 -0.4 1
DAYS >= 1.00 1 1.0 0.0 0
GREATEST
24 HR. TOTAL 1.55 08/18 TO 08/19 0.70
DEGREE DAYS
HEATING TOTAL 8 4 4 2
SINCE 7/1 8 3 5 MM
COOLING TOTAL 271 263 8 280
SINCE 1/1 924 814 110 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.2
HIGHEST WIND SPEED/DIRECTION 23/200 DATE 08/09
HIGHEST GUST SPEED/DIRECTION 34/200 DATE 08/09
34/270 08/10
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 8 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 5
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 13 FOG W/VIS <= 1/4 MILE 0
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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