428
CDUS43 KLOT 240634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT FRI OCT 24 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 23 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 53 3:10 PM 85 1963 60 -7 65
MINIMUM 38 6:43 AM 20 1981 43 -5 44
AVERAGE 46 51 -5 55
PRECIPITATION (IN)
YESTERDAY 0.00 1.40 1957 0.11 -0.11 0.00
MONTH TO DATE 2.53 2.57 -0.04 0.31
SINCE SEP 1 3.02 5.76 -2.74 1.63
SINCE JAN 1 25.47 32.47 -7.00 28.49
SNOWFALL (IN)
YESTERDAY 0.0 0.7 1929 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 19 14 5 10
MONTH TO DATE 132 231 -99 125
SINCE SEP 1 164 308 -144 140
SINCE JUL 1 169 314 -145 140
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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 6:00 AM
LOWEST 39 3:00 PM
AVERAGE 61
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 83 1963
2023
MINIMUM TEMPERATURE (F) 43 17 1981
SUNRISE AND SUNSET
OCTOBER 24 2025.......SUNRISE 7:15 AM CDT SUNSET 5:56 PM CDT
OCTOBER 25 2025.......SUNRISE 7:16 AM CDT SUNSET 5:55 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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