806
CDUS43 KLOT 290640
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT TUE SEP 29 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 28 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 74 84 2013 71 3 83
MINIMUM 44 37 2000 49 -5 57
AVERAGE 59 60 -1 70
PRECIPITATION (IN)
YESTERDAY 0.00 1.95 1999 0.09 -0.09 0.00
MONTH TO DATE 3.71 2.81 0.90 0.64
SINCE SEP 1 3.71 2.81 0.90 0.64
SINCE JAN 1 32.85 26.18 6.67 21.17
DEGREE DAYS
HEATING
YESTERDAY 6 6 0 0
MONTH TO DATE 49 86 -37 47
SINCE SEP 1 49 86 -37 47
SINCE JUL 1 50 97 -47 58
COOLING
YESTERDAY 0 1 -1 5
MONTH TO DATE 149 86 63 114
SINCE SEP 1 149 86 63 114
SINCE JAN 1 830 810 20 1022
........................................................
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 43 3:00 PM
AVERAGE 72
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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 90 2025
MINIMUM TEMPERATURE (F) 48 35 2018
SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE 6:48 AM CDT SUNSET 6:38 PM CDT
SEPTEMBER 30 2026.....SUNRISE 6:49 AM CDT SUNSET 6:36 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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