Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 222135
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT FRI AUG 22 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 22 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 82 2:39 PM 90 2007 82 0 78
MINIMUM 59 5:17 AM 48 2004 61 -2 48
2024
AVERAGE 71 71 0 63
PRECIPITATION (IN)
TODAY 0.00 1.70 2002 0.11 -0.11 0.00
2002
2014
MONTH TO DATE 2.68 2.74 -0.06 1.56
SINCE JUN 1 12.29 10.01 2.28 11.15
SINCE JAN 1 20.35 22.27 -1.92 23.79
DEGREE DAYS
HEATING
TODAY 0 0 0 2
MONTH TO DATE 0 0 0 6
SINCE JUN 1 18 37 -19 22
SINCE JUL 1 0 4 -4 9
COOLING
TODAY 6 6 0 0
MONTH TO DATE 231 167 64 135
SINCE JUN 1 863 614 249 639
SINCE JAN 1 896 670 226 693
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 2.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 6:00 AM
LOWEST 56 3:00 PM
AVERAGE 75
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 95 2023
MINIMUM TEMPERATURE (F) 61 51 1997
2005
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:09 AM CDT SUNSET 7:42 PM CDT
AUGUST 23 2025........SUNRISE 6:10 AM CDT SUNSET 7:41 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$