Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 312133
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT THU JUL 31 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR JULY 31 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 78 2:39 PM 99 1945 84 -6 92
2006
MINIMUM 69 5:40 AM 50 1936 68 1 73
AVERAGE 74 76 -2 83
PRECIPITATION (IN)
TODAY 0.08 1.20 1986 0.12 -0.04 0.00
MONTH TO DATE 6.66 3.55 3.11 6.31
SINCE JUN 1 12.03 7.56 4.47 9.75
SINCE JAN 1 21.60 20.04 1.56 25.73
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 9 24 -15 3
SINCE JUL 1 0 0 0 0
COOLING
TODAY 9 11 -2 18
MONTH TO DATE 444 353 91 352
SINCE JUN 1 768 575 193 674
SINCE JAN 1 819 657 162 787
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 16.5
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 12:00 AM
LOWEST 45 2:00 PM
AVERAGE 68
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 100 1988
MINIMUM TEMPERATURE (F) 68 52 1947
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 5:44 AM CDT SUNSET 8:10 PM CDT
AUGUST 1 2025........SUNRISE 5:45 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.
$$