Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 312133
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT THU JUL 31 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 31 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 77 2:57 PM 98 2006 84 -7 90
MINIMUM 66 5:18 AM 50 1997 63 3 66
AVERAGE 72 73 -1 78
PRECIPITATION (IN)
TODAY T 1.05 2000 0.12 -0.12 0.14
MONTH TO DATE 6.96 3.62 3.34 4.56
SINCE JUN 1 9.61 7.27 2.34 9.59
SINCE JAN 1 17.67 19.53 -1.86 22.23
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 3
SINCE JUN 1 18 33 -15 16
SINCE JUL 1 0 0 0 3
COOLING
TODAY 7 8 -1 13
MONTH TO DATE 368 272 96 262
SINCE JUN 1 635 447 188 504
SINCE JAN 1 668 503 165 558
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 13.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 12:00 AM
LOWEST 51 10:00 AM
AVERAGE 71
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 96 2006
MINIMUM TEMPERATURE (F) 63 51 1998
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 5:46 AM CDT SUNSET 8:12 PM CDT
AUGUST 1 2025........SUNRISE 5:47 AM CDT SUNSET 8:11 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$