046
CDUS43 KLOT 162134
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT TUE SEP 16 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 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 86 2:18 PM 89 2018 76 10 89
2024
MINIMUM 56 4:54 AM 39 2000 54 2 57
AVERAGE 71 65 6 73
PRECIPITATION (IN)
TODAY 0.00 0.11 2023 0.10 -0.10 0.00
MONTH TO DATE 0.34 1.59 -1.25 T
SINCE SEP 1 0.34 1.59 -1.25 T
SINCE JAN 1 20.87 24.96 -4.09 24.32
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 47 28 19 22
SINCE SEP 1 47 28 19 22
SINCE JUL 1 58 39 19 31
COOLING
TODAY 6 3 3 8
MONTH TO DATE 44 63 -19 58
SINCE SEP 1 44 63 -19 58
SINCE JAN 1 952 787 165 856
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 2.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 36 2:00 PM
AVERAGE 65
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 92 2018
MINIMUM TEMPERATURE (F) 53 40 1999
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 6:34 AM CDT SUNSET 7:00 PM CDT
SEPTEMBER 17 2025.....SUNRISE 6:35 AM CDT SUNSET 6:58 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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