Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 302135
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT SAT AUG 30 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 30 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 74 1:30 PM 96 1925 81 -7 83
1953
2013
MINIMUM 63 12:50 AM 47 1915 63 0 69
1946
AVERAGE 69 72 -3 76
PRECIPITATION (IN)
TODAY 0.00 4.31 2001 0.14 -0.14 0.28
MONTH TO DATE 5.03 4.11 0.92 2.60
SINCE JUN 1 12.95 11.92 1.03 11.59
SINCE JAN 1 22.45 26.57 -4.12 26.86
SNOWFALL (IN)
TODAY 0.0 T 1949 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 5 0 5 0
SINCE JUN 1 18 33 -15 6
SINCE JUL 1 5 2 3 0
COOLING
TODAY 4 7 -3 11
MONTH TO DATE 270 270 0 304
SINCE JUN 1 959 795 164 898
SINCE JAN 1 993 865 128 978
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 8:00 AM
LOWEST 47 12:00 PM
AVERAGE 58
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 99 1953
MINIMUM TEMPERATURE (F) 63 47 1872
SUNRISE AND SUNSET
AUGUST 30 2025........SUNRISE 6:15 AM CDT SUNSET 7:28 PM CDT
AUGUST 31 2025........SUNRISE 6:16 AM CDT SUNSET 7:26 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$