Climatological Report (Annual) Issued by NWS
000
CXUS53 KLOT 012212 CCA
CLAORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
412 PM CST MON JAN 01 2024
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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE YEAR OF 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
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TEMPERATURE (F)
RECORD
HIGH 105 07/24/1934
LOW -27 01/20/1985
HIGHEST 100 08/24 99 06/21
LOWEST -1 01/31 -8 12/23
02/03
AVG. MAXIMUM 62.4 59.5 2.9 59.7
AVG. MINIMUM 45.7 43.0 2.7 42.8
MEAN 54.0 51.2 2.8 51.3
DAYS MAX >= 90 21 16.7 4.3 16
DAYS MAX <= 32 16 43.4 -27.4 46
DAYS MIN <= 32 91 121.3 -30.3 110
DAYS MIN <= 0 2 6.5 -4.5 6
PRECIPITATION (INCHES)
RECORD
MAXIMUM 50.86 2008
MINIMUM 22.22 1962
TOTALS 33.73 37.86 -4.13 31.99
DAILY AVG. 0.09 0.10 -0.01 0.09
DAYS >= .01 135 125.8 9.2 114
DAYS >= .10 76 71.6 4.4 65
DAYS >= .50 20 23.8 -3.8 18
DAYS >= 1.00 7 8.3 -1.3 6
GREATEST
24 HR. TOTAL 3.79 07/01 TO 07/02 1.79
SNOWFALL (INCHES)
RECORDS
TOTAL 95.3 1978
TOTALS 19.8 38.4 -18.6 35.2
SINCE 7/1 3.9 9.6 -5.7 4.3
DAYS >= 1.0 6 11.4 -5.4 12
GREATEST
SNOW DEPTH 3 01/30 6 01/29
01/31
02/01
02/03
24 HR TOTAL 3.6 01/25 TO 01/25 5.6
DEGREE DAYS
HEATING TOTAL 5014 5974 -960 6044
SINCE 7/1 1762 2220 -458 2166
COOLING TOTAL 1145 1003 142 1174
SINCE 1/1 1145 1003 142 1174
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WIND (MPH)
AVERAGE WIND SPEED 9.1
HIGHEST WIND SPEED/DIRECTION 37/320 DATE 07/28
HIGHEST GUST SPEED/DIRECTION 58/230 DATE 07/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.63
NUMBER OF DAYS FAIR 64
NUMBER OF DAYS PC 167
NUMBER OF DAYS CLOUDY 134
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 37 MIXED PRECIP 1
HEAVY RAIN 31 RAIN 54
LIGHT RAIN 133 FREEZING RAIN 0
LT FREEZING RAIN 5 HAIL 8
HEAVY SNOW 0 SNOW 8
LIGHT SNOW 42 SLEET 7
FOG 140 FOG W/VIS <= 1/4 MILE 10
HAZE 64
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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