Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 192137
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT TUE AUG 19 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 19 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 80 12:43 PM 99 1947 83 -3 77
1983
MINIMUM 73 12:43 AM 49 1933 66 7 64
AVERAGE 77 74 3 71
PRECIPITATION (IN)
TODAY 0.02 1.39 2007 0.13 -0.11 0.00
MONTH TO DATE 1.93 2.47 -0.54 2.86
SINCE JUN 1 13.96 10.03 3.93 12.61
SINCE JAN 1 23.53 22.51 1.02 28.59
DEGREE DAYS
HEATING
TODAY 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
TODAY 12 9 3 6
MONTH TO DATE 268 196 72 195
SINCE JUN 1 1036 771 265 869
SINCE JAN 1 1087 853 234 982
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91 2:00 AM
LOWEST 69 2:00 PM
AVERAGE 80
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 1947
MINIMUM TEMPERATURE (F) 66 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 7:43 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$