Climatological Report (Monthly)
Issued by NWS
Issued by NWS
510
CXUS53 KLOT 011542
CLMPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1042 AM CDT MON JUN 01 2026
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...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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 97 05/27/2018
LOW 29 05/03/2004
HIGHEST 85 05/17 93 05/15
LOWEST 30 05/02 35 05/09
AVG. MAXIMUM 69.1 69.5 -0.4 66.4
AVG. MINIMUM 47.0 49.7 -2.7 46.6
MEAN 58.0 59.6 -1.6 56.5
DAYS MAX >= 90 0 0.8 -0.8 1
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 1 0.1 0.9 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.04 2018
MINIMUM 0.70 2023
TOTALS 1.11 3.76 -2.65 1.87
DAILY AVG. 0.04 0.12 -0.08 0.06
DAYS >= .01 6 12.1 -6.1 6
DAYS >= .10 2 7.7 -5.7 4
DAYS >= .50 1 2.8 -1.8 1
DAYS >= 1.00 0 1.0 -1.0 0
GREATEST
24 HR. TOTAL 0.57 05/24 TO 05/24 0.92
DEGREE DAYS
HEATING TOTAL 251 220 31 275
SINCE 7/1 5795 6048 -253 MM
COOLING TOTAL 42 52 -10 18
SINCE 1/1 55 60 -5 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.8
HIGHEST WIND SPEED/DIRECTION 28/190 DATE 05/03
HIGHEST GUST SPEED/DIRECTION 43/300 DATE 05/04
AVERAGE RH (PERCENT) 61
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 2
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 4 FOG W/VIS <= 1/4 MILE 0
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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