Climatological Report (Monthly)
Issued by NWS
Issued by NWS
078
CXUS53 KLOT 010925
CLMPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
425 AM CDT TUE SEP 01 2026
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...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2026
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 87 08/07 96 08/09
08/16
LOWEST 56 08/24 50 08/31
08/25
AVG. MAXIMUM 80.7 82.0 -1.3 82.5
AVG. MINIMUM 65.0 64.7 0.3 64.0
MEAN 72.8 73.4 -0.6 73.2
DAYS MAX >= 90 0 4.0 -4.0 7
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 4.20 3.70 0.50 3.26
DAILY AVG. 0.14 0.12 0.02 0.11
DAYS >= .01 12 9.6 2.4 8
DAYS >= .10 7 6.4 0.6 8
DAYS >= .50 2 2.4 -0.4 2
DAYS >= 1.00 2 1.0 1.0 1
GREATEST
24 HR. TOTAL 1.82 08/09 TO 08/09 1.55
DEGREE DAYS
HEATING TOTAL 0 4 -4 8
SINCE 7/1 0 3 -3 MM
COOLING TOTAL 249 263 -14 271
SINCE 1/1 792 814 -22 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.5
HIGHEST WIND SPEED/DIRECTION 24/010 DATE 08/09
HIGHEST GUST SPEED/DIRECTION 40/010 DATE 08/09
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 8 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 6
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 10 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.
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