Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 012133
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT FRI AUG 01 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 1 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 75 2:28 PM 100 1988 84 -9 88
MINIMUM 62 5:13 AM 51 1990 67 -5 69
AVERAGE 69 75 -6 79
PRECIPITATION (IN)
TODAY 0.00 2.55 1961 0.15 -0.15 0.51
MONTH TO DATE 0.00 0.15 -0.15 0.51
SINCE JUN 1 7.92 7.96 -0.04 9.50
SINCE JAN 1 17.42 22.61 -5.19 24.77
SNOWFALL (IN)
TODAY 0.0 T 2003 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 4 10 -6 14
MONTH TO DATE 4 10 -6 14
SINCE JUN 1 693 535 158 608
SINCE JAN 1 727 605 122 688
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 10.5
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 37 2:00 PM
AVERAGE 64
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 101 1991
MINIMUM TEMPERATURE (F) 66 51 1985
SUNRISE AND SUNSET
AUGUST 1 2025........SUNRISE 5:45 AM CDT SUNSET 8:10 PM CDT
AUGUST 2 2025........SUNRISE 5:46 AM CDT SUNSET 8:09 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$