694
CDUS43 KLOT 280636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT TUE OCT 28 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 27 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 57 11:57 AM 83 1927 58 -1 59
MINIMUM 45 5:58 AM 24 1942 42 3 37
AVERAGE 51 50 1 48
PRECIPITATION (IN)
YESTERDAY 0.00 1.56 1947 0.11 -0.11 0.00
MONTH TO DATE 2.53 3.01 -0.48 1.15
SINCE SEP 1 3.02 6.20 -3.18 2.47
SINCE JAN 1 25.47 32.91 -7.44 29.33
SNOWFALL (IN)
YESTERDAY 0.0 2.7 1967 0.0 0.0 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 16 -2 17
MONTH TO DATE 199 291 -92 176
SINCE SEP 1 231 368 -137 191
SINCE JUL 1 236 374 -138 191
COOLING
YESTERDAY 0 0 0 0
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 21 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 10.8
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 3:00 AM
LOWEST 42 11:00 AM
AVERAGE 63
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 80 1999
MINIMUM TEMPERATURE (F) 41 19 1925
SUNRISE AND SUNSET
OCTOBER 28 2025.......SUNRISE 7:20 AM CDT SUNSET 5:50 PM CDT
OCTOBER 29 2025.......SUNRISE 7:21 AM CDT SUNSET 5:49 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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