Climatological Report (Daily)
Issued by NWS
Issued by NWS
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785
CDUS43 KLOT 240631
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT SUN AUG 24 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 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 83 1:35 PM 98 2023 82 1 82
MINIMUM 63 11:59 PM 48 1904 64 -1 59
AVERAGE 73 73 0 71
PRECIPITATION (IN)
YESTERDAY T 2.35 2007 0.13 -0.13 0.00
MONTH TO DATE 4.68 3.19 1.49 1.50
SINCE JUN 1 12.60 11.00 1.60 10.49
SINCE JAN 1 22.10 25.65 -3.55 25.76
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 13 33 -20 6
SINCE JUL 1 0 2 -2 0
COOLING
YESTERDAY 8 8 0 6
MONTH TO DATE 260 216 44 188
SINCE JUN 1 949 741 208 782
SINCE JAN 1 983 811 172 862
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 9.8
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 6:00 AM
LOWEST 42 4:00 PM
AVERAGE 63
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 100 1947
2023
MINIMUM TEMPERATURE (F) 64 48 1942
SUNRISE AND SUNSET
AUGUST 24 2025........SUNRISE 6:09 AM CDT SUNSET 7:38 PM CDT
AUGUST 25 2025........SUNRISE 6:10 AM CDT SUNSET 7:36 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$