Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 202133
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT THU AUG 20 2026
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM MM MM 93 2023 82 MM 80
MINIMUM MM MM 51 2002 62 MM 63
AVERAGE MM 72 MM 72
PRECIPITATION (IN)
TODAY MM 1.52 2022 0.11 MM 0.00
MONTH TO DATE 4.22 2.51 1.71 2.68
SINCE JUN 1 16.26 9.78 6.48 12.29
SINCE JAN 1 29.14 22.04 7.10 20.35
DEGREE DAYS
HEATING
TODAY MM 0 MM 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 25 37 -12 18
SINCE JUL 1 1 4 -3 0
COOLING
TODAY MM 7 MM 7
MONTH TO DATE 161 154 7 219
SINCE JUN 1 622 601 21 851
SINCE JAN 1 681 657 24 884
...................................................................
WIND (MPH)
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 94 2003
MINIMUM TEMPERATURE (F) 61 49 2004
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:06 AM CDT SUNSET 7:46 PM CDT
AUGUST 21 2026........SUNRISE 6:07 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.
$$