Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 120634
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE AUG 12 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 11 2025...
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)
YESTERDAY
MAXIMUM 89 4:39 PM 100 1941 83 6 80
MINIMUM 75 11:59 PM 50 1982 67 8 59
AVERAGE 82 75 7 70
PRECIPITATION (IN)
YESTERDAY 0.17 2.36 1931 0.13 0.04 0.00
MONTH TO DATE 0.17 1.36 -1.19 0.94
SINCE JUN 1 12.20 8.92 3.28 10.69
SINCE JAN 1 21.77 21.40 0.37 26.67
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 9 25 -16 3
SINCE JUL 1 0 1 -1 0
COOLING
YESTERDAY 17 10 7 5
MONTH TO DATE 151 117 34 120
SINCE JUN 1 919 692 227 794
SINCE JAN 1 970 774 196 907
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 10.2
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 11:00 PM
LOWEST 48 3:00 PM
AVERAGE 69
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 100 1995
MINIMUM TEMPERATURE (F) 67 50 1930
SUNRISE AND SUNSET
AUGUST 12 2025........SUNRISE 5:57 AM CDT SUNSET 7:55 PM CDT
AUGUST 13 2025........SUNRISE 5:58 AM CDT SUNSET 7:53 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$