Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 170632
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI OCT 17 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 16 2025...
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)
YESTERDAY
MAXIMUM 70 3:06 PM 78 1998 62 8 58
MINIMUM 56 6:45 AM 29 2018 42 14 34
AVERAGE 63 52 11 46
PRECIPITATION (IN)
YESTERDAY 0.00 0.65 2007 0.10 -0.10 0.00
MONTH TO DATE 1.85 1.66 0.19 0.13
SINCE SEP 1 2.49 4.66 -2.17 1.55
SINCE JAN 1 23.02 28.03 -5.01 25.87
DEGREE DAYS
HEATING
YESTERDAY 2 13 -11 19
MONTH TO DATE 73 164 -91 119
SINCE SEP 1 120 264 -144 152
SINCE JUL 1 131 275 -144 161
COOLING
YESTERDAY 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 12 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 5.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 5:00 AM
LOWEST 50 1:00 PM
AVERAGE 65
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 62 83 2016
MINIMUM TEMPERATURE (F) 42 28 2004
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:08 AM CDT SUNSET 6:08 PM CDT
OCTOBER 18 2025.......SUNRISE 7:09 AM CDT SUNSET 6:06 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$