393
CDUS43 KLOT 182133
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT THU SEP 18 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 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 88R 2:37 PM 88 2007 75 13 86
MINIMUM 56 5:28 AM 41 2012 53 3 53
AVERAGE 72 64 8 70
PRECIPITATION (IN)
TODAY 0.00 1.90 2015 0.10 -0.10 0.00
MONTH TO DATE 0.34 1.79 -1.45 T
SINCE SEP 1 0.34 1.79 -1.45 T
SINCE JAN 1 20.87 25.16 -4.29 24.32
DEGREE DAYS
HEATING
TODAY 0 4 -4 0
MONTH TO DATE 47 35 12 22
SINCE SEP 1 47 35 12 22
SINCE JUL 1 58 46 12 31
COOLING
TODAY 7 2 5 5
MONTH TO DATE 56 68 -12 68
SINCE SEP 1 56 68 -12 68
SINCE JAN 1 964 792 172 866
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 2.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 31 2:00 PM
AVERAGE 61
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 90 2021
MINIMUM TEMPERATURE (F) 52 37 2020
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:37 AM CDT SUNSET 6:57 PM CDT
SEPTEMBER 19 2025.....SUNRISE 6:38 AM CDT SUNSET 6:55 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page