699
CDUS43 KLOT 280641
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT MON SEP 28 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 27 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 73 88 2021 71 2 88
2025
MINIMUM 45 39 2001 49 -4 57
2012
AVERAGE 59 60 -1 73
PRECIPITATION (IN)
YESTERDAY 0.00 2.00 2019 0.10 -0.10 0.00
MONTH TO DATE 3.71 2.72 0.99 0.64
SINCE SEP 1 3.71 2.72 0.99 0.64
SINCE JAN 1 32.85 26.09 6.76 21.17
DEGREE DAYS
HEATING
YESTERDAY 6 6 0 0
MONTH TO DATE 43 80 -37 47
SINCE SEP 1 43 80 -37 47
SINCE JUL 1 44 91 -47 58
COOLING
YESTERDAY 0 1 -1 8
MONTH TO DATE 149 85 64 109
SINCE SEP 1 149 85 64 109
SINCE JAN 1 830 809 21 1017
........................................................
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 7:00 AM
LOWEST 41 3:00 PM
AVERAGE 71
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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 84 2013
MINIMUM TEMPERATURE (F) 49 37 2000
SUNRISE AND SUNSET
SEPTEMBER 28 2026.....SUNRISE 6:47 AM CDT SUNSET 6:40 PM CDT
SEPTEMBER 29 2026.....SUNRISE 6:48 AM CDT SUNSET 6:38 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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