Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 222135
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT FRI AUG 22 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 22 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 81 2:59 PM 99 1936 82 -1 80
MINIMUM 63 4:46 AM 49 2004 65 -2 55
AVERAGE 72 73 -1 68
PRECIPITATION (IN)
TODAY 0.00 4.45 2002 0.13 -0.13 0.00
MONTH TO DATE 4.68 3.06 1.62 1.50
SINCE JUN 1 12.60 10.87 1.73 10.49
SINCE JAN 1 22.10 25.52 -3.42 25.76
SNOWFALL (IN)
TODAY 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
TODAY 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
TODAY 7 8 -1 3
MONTH TO DATE 252 208 44 182
SINCE JUN 1 941 733 208 776
SINCE JAN 1 975 803 172 856
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 2.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 52 3:00 PM
AVERAGE 71
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 2023
MINIMUM TEMPERATURE (F) 64 48 1904
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:07 AM CDT SUNSET 7:41 PM CDT
AUGUST 23 2025........SUNRISE 6:08 AM CDT SUNSET 7:39 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$