Climatological Report (Monthly)
Issued by NWS
Issued by NWS
027
CXUS53 KLOT 011319
CLMPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
819 AM CDT TUE OCT 01 2024
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...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 96 09/22/2017
09/10/2013
LOW 34 09/24/2012
HIGHEST 92 09/21 94 09/05
LOWEST 46 09/08 47 09/15
AVG. MAXIMUM 79.2 75.3 3.9 76.3
AVG. MINIMUM 58.0 56.3 1.7 58.9
MEAN 68.6 65.8 2.8 67.6
DAYS MAX >= 90 1 1.7 -0.7 3
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 9.43 2008
MINIMUM 0.31 2004
TOTALS 0.99 3.04 -2.05 2.89
DAILY AVG. 0.03 0.10 -0.07 0.10
DAYS >= .01 5 9.5 -4.5 11
DAYS >= .10 2 5.4 -3.4 5
DAYS >= .50 1 1.7 -0.7 2
DAYS >= 1.00 0 0.7 -0.7 1
GREATEST
24 HR. TOTAL 0.64 09/22 TO 09/22 1.45
DEGREE DAYS
HEATING TOTAL 20 82 -62 34
SINCE 7/1 25 89 -64 MM
COOLING TOTAL 138 106 32 119
SINCE 1/1 1007 920 87 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.4
HIGHEST WIND SPEED/DIRECTION 24/060 DATE 09/27
HIGHEST GUST SPEED/DIRECTION 38/020 DATE 09/27
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 5 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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