203
CDUS43 KLOT 210634
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT MON SEP 21 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 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 69 93 2018 74 -5 79
2022
MINIMUM 61 40 2003 52 9 62
2020
AVERAGE 65 63 2 71
PRECIPITATION (IN)
YESTERDAY 1.06R 0.77 2001 0.11 0.95 0.21
MONTH TO DATE 3.71 2.00 1.71 0.58
SINCE SEP 1 3.71 2.00 1.71 0.58
SINCE JAN 1 32.85 25.37 7.48 21.11
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 10 43 -33 47
SINCE SEP 1 10 43 -33 47
SINCE JUL 1 11 54 -43 58
COOLING
YESTERDAY 0 2 -2 6
MONTH TO DATE 149 72 77 72
SINCE SEP 1 149 72 77 72
SINCE JAN 1 830 796 34 980
........................................................
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 86 6:00 PM
AVERAGE 93
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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 92 2017
2024
MINIMUM TEMPERATURE (F) 52 40 2006
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 6:39 AM CDT SUNSET 6:52 PM CDT
SEPTEMBER 22 2026.....SUNRISE 6:40 AM CDT SUNSET 6:50 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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