Climatological Report (Monthly)
Issued by NWS
Issued by NWS
270
CXUS53 KLOT 021506 CCA
CLMDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1036 AM CST WED JAN 01 2025
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...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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 69 12/03/2012
LOW -15 12/19/2016
HIGHEST MM 59 12/25
LOWEST 3 12/13 13 12/19
AVG. MAXIMUM MM 35.4 MM 43.4
AVG. MINIMUM MM 21.4 MM 30.9
MEAN MM 28.4 MM 37.2
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 MM 11.3 MM 1
DAYS MIN <= 32 MM 26.5 MM 19
DAYS MIN <= 0 0 2.1 -2.1 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.10 2015
MINIMUM 0.58 2014
TOTALS 1.07 1.67 -0.60 2.26
DAILY AVG. 0.03 0.05 -0.02 0.07
DAYS >= .01 9 8.7 0.3 12
DAYS >= .10 3 4.0 -1.0 6
DAYS >= .50 1 1.1 -0.1 1
DAYS >= 1.00 0 0.2 -0.2 0
GREATEST
24 HR. TOTAL 0.50 12/31 TO 12/31 0.55
DEGREE DAYS
HEATING TOTAL 955 1134 -179 852
SINCE 7/1 1869 2420 -551 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 927 823 104 MM
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WIND (MPH)
AVERAGE WIND SPEED 9.8
HIGHEST WIND SPEED/DIRECTION 39/300 DATE 12/04
HIGHEST GUST SPEED/DIRECTION 55/290 DATE 12/04
AVERAGE RH (PERCENT) 70
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 5 SLEET 0
FOG 17 FOG W/VIS <= 1/4 MILE 3
HAZE 11
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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