Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 310633
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SUN AUG 31 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 30 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 75 2:43 PM 96 1937 81 -6 87
1953
2013
MINIMUM 64 11:59 PM 47 1946 64 0 72
AVERAGE 70 73 -3 80
PRECIPITATION (IN)
YESTERDAY T 1.43 1965 0.13 -0.13 0.03
MONTH TO DATE 3.22 3.86 -0.64 3.74
SINCE JUN 1 15.25 11.42 3.83 13.49
SINCE JAN 1 24.82 23.90 0.92 29.47
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 0
SINCE JUN 1 11 25 -14 3
SINCE JUL 1 2 1 1 0
COOLING
YESTERDAY 5 8 -3 15
MONTH TO DATE 319 290 29 327
SINCE JUN 1 1087 865 222 1001
SINCE JAN 1 1138 947 191 1114
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 6:00 AM
LOWEST 43 12:00 PM
AVERAGE 59
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 99 1953
MINIMUM TEMPERATURE (F) 64 46 1935
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:16 AM CDT SUNSET 7:25 PM CDT
SEPTEMBER 1 2025.....SUNRISE 6:17 AM CDT SUNSET 7:24 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$