136
CXUS53 KLOT 021605 CCA
CLMMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
554 AM CST THU JAN 01 2026
...............................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 72 12/03/2012
LOW -20 12/24/1983
HIGHEST 59 12/28 57 12/08
LOWEST -1 12/14 5 12/12
AVG. MAXIMUM 35.1 37.6 -2.5 39.8
AVG. MINIMUM 20.6 25.0 -4.4 27.4
MEAN 27.9 31.3 -3.4 33.6
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 14 9.9 4.1 7
DAYS MIN <= 32 26 23.7 2.3 17
DAYS MIN <= 0 1 0.9 0.1 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.21 1982
MINIMUM 0.17 2017
TOTALS 1.81 1.79 0.02 1.93
DAILY AVG. 0.06 0.06 0.00 0.06
DAYS >= .01 7 9.5 -2.5 10
DAYS >= .10 4 4.3 -0.3 4
DAYS >= .50 1 1.1 -0.1 2
DAYS >= 1.00 1 0.4 0.6 0
GREATEST
24 HR. TOTAL 1.15 12/28 TO 12/28 0.88
DEGREE DAYS
HEATING TOTAL 1142 1044 98 968
SINCE 7/1 2051 2128 -77 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 1410 1112 298 MM
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WIND (MPH)
AVERAGE WIND SPEED 10.7
HIGHEST WIND SPEED/DIRECTION 36/270 DATE 12/28
HIGHEST GUST SPEED/DIRECTION 52/200 DATE 12/18
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.78
NUMBER OF DAYS FAIR 4
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 21
AVERAGE RH (PERCENT) 71
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 2
LIGHT SNOW 18 SLEET 0
FOG 18 FOG W/VIS <= 1/4 MILE 1
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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