Climatological Report (Daily)
Issued by NWS
Issued by NWS
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051
CDUS43 KLOT 132136
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT WED AUG 13 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 13 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 86 2:40 PM 98 1944 83 3 86
MINIMUM 69 4:28 AM 51 1982 66 3 64
2004
AVERAGE 78 74 4 75
PRECIPITATION (IN)
TODAY 0.00 2.86 1987 0.14 -0.14 0.00
MONTH TO DATE 0.52 1.80 -1.28 0.85
SINCE JUN 1 8.44 9.61 -1.17 9.84
SINCE JAN 1 17.94 24.26 -6.32 25.11
SNOWFALL (IN)
TODAY 0.0 0.0 MM 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 13 9 4 10
MONTH TO DATE 156 129 27 122
SINCE JUN 1 845 654 191 716
SINCE JAN 1 879 724 155 796
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 38 1:00 PM
AVERAGE 66
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 1944
MINIMUM TEMPERATURE (F) 66 48 1964
SUNRISE AND SUNSET
AUGUST 13 2025........SUNRISE 5:58 AM CDT SUNSET 7:54 PM CDT
AUGUST 14 2025........SUNRISE 5:59 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.
$$