Climatological Report (Monthly) Issued by NWS
000
CXUS53 KLOT 011635
CLMMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1035 AM CST MON JAN 01 2024
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...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 72 12/03/2012
LOW -20 12/24/1983
HIGHEST 60 12/25 57 12/29
12/30
LOWEST 18 12/19 -9 12/23
AVG. MAXIMUM 45.7 37.6 8.1 35.7
AVG. MINIMUM 35.1 25.0 10.1 23.2
MEAN 40.4 31.3 9.1 29.5
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 9.9 -9.9 10
DAYS MIN <= 32 13 23.7 -10.7 20
DAYS MIN <= 0 0 0.9 -0.9 3
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.21 1982
MINIMUM 0.17 2017
TOTALS 2.67 1.79 0.88 1.67
DAILY AVG. 0.09 0.06 0.03 0.05
DAYS >= .01 10 9.5 0.5 6
DAYS >= .10 7 4.3 2.7 3
DAYS >= .50 1 1.1 -0.1 1
DAYS >= 1.00 0 0.4 -0.4 1
GREATEST
24 HR. TOTAL 0.72 12/01 TO 12/01 1.15
DEGREE DAYS
HEATING TOTAL 755 1044 -289 1094
SINCE 7/1 1707 2128 -421 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 1149 1112 37 MM
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WIND (MPH)
AVERAGE WIND SPEED 9.2
HIGHEST WIND SPEED/DIRECTION 32/330 DATE 12/18
HIGHEST GUST SPEED/DIRECTION 45/340 DATE 12/18
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.77
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 19
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 16 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 3 SLEET 0
FOG 17 FOG W/VIS <= 1/4 MILE 2
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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