Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 192137
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT TUE AUG 19 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 19 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 78 11:56 AM 99 1947 82 -4 77
1983
MINIMUM 72 3:42 AM 51 1992 65 7 63
AVERAGE 75 74 1 70
PRECIPITATION (IN)
TODAY 0.15 2.07 1921 0.13 0.02 0.00
MONTH TO DATE 4.68 2.66 2.02 1.50
SINCE JUN 1 12.60 10.47 2.13 10.49
SINCE JAN 1 22.10 25.12 -3.02 25.76
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 10 9 1 5
MONTH TO DATE 234 183 51 178
SINCE JUN 1 923 708 215 772
SINCE JAN 1 957 778 179 852
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 2:00 AM
LOWEST 71 3:00 PM
AVERAGE 84
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 1947
MINIMUM TEMPERATURE (F) 65 47 1950
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 6:04 AM CDT SUNSET 7:45 PM CDT
AUGUST 20 2025........SUNRISE 6:05 AM CDT SUNSET 7:44 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$