Climatological Report (Daily)
Issued by NWS
Issued by NWS
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865
CDUS43 KLOT 082233
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
533 PM CDT FRI AUG 08 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 8 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 92 1:51 PM 100 1934 83 9 83
MINIMUM 74 5:40 AM 52 1976 66 8 64
AVERAGE 83 75 8 74
PRECIPITATION (IN)
TODAY 0.00 2.35 1977 0.13 -0.13 0.00
MONTH TO DATE 0.00 1.11 -1.11 0.85
SINCE JUN 1 7.92 8.92 -1.00 9.84
SINCE JAN 1 17.42 23.57 -6.15 25.11
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 18 10 8 9
MONTH TO DATE 74 80 -6 99
SINCE JUN 1 763 605 158 693
SINCE JAN 1 797 675 122 773
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 9.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 2:00 AM
LOWEST 49 1:00 PM
AVERAGE 69
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 97 1913
MINIMUM TEMPERATURE (F) 66 51 1972
SUNRISE AND SUNSET
AUGUST 8 2025........SUNRISE 5:53 AM CDT SUNSET 8:01 PM CDT
AUGUST 9 2025........SUNRISE 5:54 AM CDT SUNSET 8:00 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$