Climatological Report (Daily)
Issued by NWS
Issued by NWS
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400
CDUS43 KLOT 152146
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
446 PM CDT WED OCT 15 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 15 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 60 2:59 PM 79 1999 63 -3 54
MINIMUM 55 5:24 AM 27 1997 42 13 38
2006
AVERAGE 58 53 5 46
PRECIPITATION (IN)
TODAY 0.05 0.31 2008 0.10 -0.05 0.01
MONTH TO DATE 1.85 1.56 0.29 0.13
SINCE SEP 1 2.49 4.56 -2.07 1.55
SINCE JAN 1 23.02 27.93 -4.91 25.87
DEGREE DAYS
HEATING
TODAY 7 13 -6 19
MONTH TO DATE 71 151 -80 100
SINCE SEP 1 118 251 -133 133
SINCE JUL 1 129 262 -133 142
COOLING
TODAY 0 0 0 0
MONTH TO DATE 47 9 38 3
SINCE SEP 1 174 97 77 113
SINCE JAN 1 1082 821 261 911
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 9.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 12:00 PM
LOWEST 69 1:00 AM
AVERAGE 78
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 78 1998
MINIMUM TEMPERATURE (F) 42 29 2018
SUNRISE AND SUNSET
OCTOBER 15 2025.......SUNRISE 7:06 AM CDT SUNSET 6:11 PM CDT
OCTOBER 16 2025.......SUNRISE 7:07 AM CDT SUNSET 6:09 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$