513
CDUS43 KLOT 220834
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
334 AM CDT WED OCT 22 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 21 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 55 11:33 AM 87 1953 61 -6 81
MINIMUM 46 6:26 AM 26 1952 44 2 54
AVERAGE 51 52 -1 68
PRECIPITATION (IN)
YESTERDAY 0.02 2.28 1933 0.11 -0.09 0.00
MONTH TO DATE 2.53 2.35 0.18 0.30
SINCE SEP 1 3.02 5.54 -2.52 1.62
SINCE JAN 1 25.47 32.25 -6.78 28.48
SNOWFALL (IN)
YESTERDAY 0.0 1.9 1913 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE SEP 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 14 13 1 0
MONTH TO DATE 96 203 -107 114
SINCE SEP 1 128 280 -152 129
SINCE JUL 1 133 286 -153 129
COOLING
YESTERDAY 0 0 0 3
MONTH TO DATE 57 12 45 16
SINCE SEP 1 223 128 95 206
SINCE JAN 1 1215 1000 215 1192
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WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 13.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 6:00 AM
LOWEST 50 1:00 PM
AVERAGE 70
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 87 1953
MINIMUM TEMPERATURE (F) 43 22 1982
SUNRISE AND SUNSET
OCTOBER 22 2025.......SUNRISE 7:13 AM CDT SUNSET 5:59 PM CDT
OCTOBER 23 2025.......SUNRISE 7:14 AM CDT SUNSET 5:57 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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