870
CDUS43 KLOT 250640
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT SAT OCT 25 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 24 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 54 2:30 PM 83 1963 59 -5 64
2023
MINIMUM 34 6:19 AM 17 1981 43 -9 40
AVERAGE 44 51 -7 52
PRECIPITATION (IN)
YESTERDAY 0.00 1.85 2021 0.11 -0.11 0.21
MONTH TO DATE 2.53 2.68 -0.15 0.52
SINCE SEP 1 3.02 5.87 -2.85 1.84
SINCE JAN 1 25.47 32.58 -7.11 28.70
SNOWFALL (IN)
YESTERDAY 0.0 T 1909 0.0 0.0 0.0
1959
2013
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 21 14 7 13
MONTH TO DATE 153 245 -92 138
SINCE SEP 1 185 322 -137 153
SINCE JUL 1 190 328 -138 153
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 12 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 4.3
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 11:00 PM
LOWEST 41 3:00 PM
AVERAGE 62
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 79 1963
MINIMUM TEMPERATURE (F) 42 14 1887
SUNRISE AND SUNSET
OCTOBER 25 2025.......SUNRISE 7:16 AM CDT SUNSET 5:55 PM CDT
OCTOBER 26 2025.......SUNRISE 7:17 AM CDT SUNSET 5:53 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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