460
CDUS43 KLOT 312132
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT FRI OCT 31 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 31 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 53 2:56 PM 84 1950 56 -3 71
MINIMUM 40 6:52 AM 23 1873 40 0 43
AVERAGE 47 48 -1 57
PRECIPITATION (IN)
TODAY 0.00 2.26 1994 0.10 -0.10 0.03
MONTH TO DATE 2.53 3.43 -0.90 1.18
SINCE SEP 1 3.02 6.62 -3.60 2.50
SINCE JAN 1 25.47 33.33 -7.86 29.36
SNOWFALL (IN)
TODAY 0.0 3.4 2019 0.0 0.0 0.0
MONTH TO DATE 0.0 0.2 -0.2 0.0
SINCE SEP 1 0.0 0.2 -0.2 0.0
SINCE JUL 1 0.0 0.2 -0.2 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 18 17 1 8
MONTH TO DATE 259 357 -98 194
SINCE SEP 1 291 434 -143 209
SINCE JUL 1 296 440 -144 209
COOLING
TODAY 0 0 0 0
MONTH TO DATE 57 15 42 35
SINCE SEP 1 223 131 92 225
SINCE JAN 1 1215 1003 212 1211
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 7:00 AM
LOWEST 50 12:00 PM
AVERAGE 68
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 81 1950
MINIMUM TEMPERATURE (F) 40 21 1879
SUNRISE AND SUNSET
OCTOBER 31 2025.......SUNRISE 7:23 AM CDT SUNSET 5:46 PM CDT
NOVEMBER 1 2025......SUNRISE 7:25 AM CDT SUNSET 5:45 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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