985
CDUS43 KLOT 200634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT MON OCT 20 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 19 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 59 4:15 PM 84 1971 61 -2 71
MINIMUM 46 11:59 PM 21 1992 44 2 44
AVERAGE 53 53 0 58
PRECIPITATION (IN)
YESTERDAY 0.38 2.22 1885 0.11 0.27 0.00
MONTH TO DATE 2.50 2.14 0.36 0.30
SINCE SEP 1 2.99 5.33 -2.34 1.62
SINCE JAN 1 25.44 32.04 -6.60 28.48
SNOWFALL (IN)
YESTERDAY 0.0 3.8 1989 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 12 12 0 7
MONTH TO DATE 71 177 -106 114
SINCE SEP 1 103 254 -151 129
SINCE JUL 1 108 260 -152 129
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 57 12 45 13
SINCE SEP 1 223 128 95 203
SINCE JAN 1 1215 1000 215 1189
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WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 11.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 41 4:00 PM
AVERAGE 67
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 86 1953
MINIMUM TEMPERATURE (F) 44 24 1895
1930
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 7:10 AM CDT SUNSET 6:02 PM CDT
OCTOBER 21 2025.......SUNRISE 7:11 AM CDT SUNSET 6:00 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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