Climatological Report (Daily)
Issued by NWS
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126
CDUS43 KLOT 200646
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
146 AM CDT SUN SEP 20 2026
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026
WEATHER ITEM OBSERVED RECORD YEAR NORMAL DEPARTURE LAST
VALUE VALUE VALUE FROM YEAR
NORMAL
............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 70 90 2021 75 -5 87
MINIMUM 63 37 2020 52 11 62
AVERAGE 67 64 3 75
PRECIPITATION (IN)
YESTERDAY 0.59 2.60 2001 0.10 0.49 0.03
MONTH TO DATE 2.32 1.89 0.43 0.37
SINCE SEP 1 2.32 1.89 0.43 0.37
SINCE JAN 1 31.46 25.26 6.20 20.90
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 10 39 -29 47
SINCE SEP 1 10 39 -29 47
SINCE JUL 1 11 50 -39 58
COOLING
YESTERDAY 2 2 0 10
MONTH TO DATE 149 70 79 66
SINCE SEP 1 149 70 79 66
SINCE JAN 1 830 794 36 974
............................................................
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 7:00 PM
LOWEST 73 12:00 AM
AVERAGE 87
..........................................................
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 2026.....SUNRISE 6:38 AM CDT SUNSET 6:54 PM CDT
SEPTEMBER 21 2026.....SUNRISE 6:39 AM CDT SUNSET 6:52 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$