136
CDUS43 KLOT 300634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT THU OCT 30 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 29 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 7:08 PM 82 2024 57 0 82
MINIMUM 44 11:58 PM 19 1925 41 3 67
AVERAGE 51 49 2 75
PRECIPITATION (IN)
YESTERDAY 0.00 1.19 1875 0.11 -0.11 0.00
MONTH TO DATE 2.53 3.23 -0.70 1.15
SINCE SEP 1 3.02 6.42 -3.40 2.47
SINCE JAN 1 25.47 33.13 -7.66 29.33
SNOWFALL (IN)
YESTERDAY 0.0 1.2 1917 0.1 -0.1 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
YESTERDAY 14 16 -2 0
MONTH TO DATE 225 323 -98 186
SINCE SEP 1 257 400 -143 201
SINCE JUL 1 262 406 -144 201
COOLING
YESTERDAY 0 0 0 10
MONTH TO DATE 57 12 45 26
SINCE SEP 1 223 128 95 216
SINCE JAN 1 1215 1000 215 1202
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 16.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 10:00 PM
LOWEST 49 10:00 AM
AVERAGE 68
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 85 1950
MINIMUM TEMPERATURE (F) 40 21 1988
SUNRISE AND SUNSET
OCTOBER 30 2025.......SUNRISE 7:22 AM CDT SUNSET 5:48 PM CDT
OCTOBER 31 2025.......SUNRISE 7:23 AM CDT SUNSET 5:46 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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