Climatological Report (Seasonal) Issued by NWS
000
CXUS53 KLOT 011912
CLSORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
112 PM CST FRI DEC 01 2023
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2023 TO 11/30/2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 101 09/02/1953
09/01/1953
LOW -2 11/24/1950
11/29/1872
HIGHEST 94 09/03 88 09/01
09/04
09/05
09/03
LOWEST 14 11/28 13 11/20
AVG. MAXIMUM 64.5 62.2 2.3 63.8
AVG. MINIMUM 48.5 45.5 3.0 46.0
MEAN 56.5 53.9 2.6 54.9
DAYS MAX >= 90 3 2.0 1.0 0
DAYS MAX <= 32 2 2.0 0.0 2
DAYS MIN <= 32 14 17.3 -3.3 13
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 19.32 1961
MINIMUM 2.07 1956
TOTALS 6.50 9.04 -2.54 4.72
DAILY AVG. 0.07 0.10 -0.03 0.05
DAYS >= .01 38 29.0 9.0 21
DAYS >= .10 16 17.2 -1.2 10
DAYS >= .50 4 5.7 -1.7 2
DAYS >= 1.00 1 2.0 -1.0 1
GREATEST
24 HR. TOTAL 1.62 09/16 TO 09/17 1.45
SNOWFALL (INCHES)
RECORDS
TOTAL 14.8 1940
TOTALS 2.7 2.0 0.7 1.1
SINCE 7/1 2.7 2.0 0.7 4.3
DAYS >= 1.0 1 1.0 0.0 1
GREATEST
SNOW DEPTH 1 11/26 1 11/15
11/27
24 HR TOTAL 1.8 11/26 TO 11/27 1.0
DEGREE DAYS
HEATING TOTAL 962 1145 -183 1065
SINCE 7/1 964 1151 -187 2166
COOLING TOTAL 211 132 79 173
SINCE 1/1 1145 1003 142 1174
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WIND (MPH)
AVERAGE WIND SPEED 8.7
HIGHEST WIND SPEED/DIRECTION 28/190 DATE 11/16
HIGHEST GUST SPEED/DIRECTION 41/180 DATE 11/16
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.60
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 43
NUMBER OF DAYS CLOUDY 30
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 6 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 11
LIGHT RAIN 37 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 2
LIGHT SNOW 4 SLEET 0
FOG 34 FOG W/VIS <= 1/4 MILE 1
HAZE 10
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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