Climatological Report (Monthly)
Issued by NWS
Issued by NWS
124
CXUS53 KLOT 011319
CLMDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
819 AM CDT TUE OCT 01 2024
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...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 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 95 09/02/2008
LOW 32 09/24/2012
HIGHEST 92 09/21 92 09/04
LOWEST 44 09/08 46 09/14
AVG. MAXIMUM 79.9 75.5 4.4 76.3
AVG. MINIMUM 54.8 53.7 1.1 56.8
MEAN 67.3 64.6 2.7 66.6
DAYS MAX >= 90 2 1.7 0.3 2
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 12.26 2008
MINIMUM 0.30 2017
TOTALS 1.42 3.00 -1.58 2.77
DAILY AVG. 0.05 0.10 -0.05 0.09
DAYS >= .01 3 10.0 -7.0 12
DAYS >= .10 2 5.2 -3.2 8
DAYS >= .50 2 1.8 0.2 2
DAYS >= 1.00 0 0.7 -0.7 0
GREATEST
24 HR. TOTAL 0.86 09/22 TO 09/22 0.93
DEGREE DAYS
HEATING TOTAL 33 100 -67 47
SINCE 7/1 42 111 -69 MM
COOLING TOTAL 110 88 22 101
SINCE 1/1 908 812 96 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.1
HIGHEST WIND SPEED/DIRECTION 29/030 DATE 09/27
HIGHEST GUST SPEED/DIRECTION 37/050 DATE 09/27
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 3
LIGHT RAIN 4 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 3
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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