Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 200632
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SAT SEP 20 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 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 87 12:30 PM 90 2021 75 12 88
MINIMUM 62 5:08 AM 37 2020 52 10 55
AVERAGE 75 64 11 72
PRECIPITATION (IN)
YESTERDAY 0.03 2.60 2001 0.10 -0.07 0.00
MONTH TO DATE 0.37 1.89 -1.52 T
SINCE SEP 1 0.37 1.89 -1.52 T
SINCE JAN 1 20.90 25.26 -4.36 24.32
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 47 39 8 22
SINCE SEP 1 47 39 8 22
SINCE JUL 1 58 50 8 31
COOLING
YESTERDAY 10 2 8 7
MONTH TO DATE 66 70 -4 75
SINCE SEP 1 66 70 -4 75
SINCE JAN 1 974 794 180 873
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 3.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 11:00 PM
LOWEST 40 1:00 PM
AVERAGE 65
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 93 2018
2022
MINIMUM TEMPERATURE (F) 52 40 2003
2020
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 6:39 AM CDT SUNSET 6:53 PM CDT
SEPTEMBER 21 2025.....SUNRISE 6:40 AM CDT SUNSET 6:51 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$