887
CDUS43 KLOT 290639
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
139 AM CDT MON SEP 29 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 28 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 83 2:17 PM 84 2013 71 12 74
MINIMUM 57 6:14 AM 37 2000 49 8 66
AVERAGE 70 60 10 70
PRECIPITATION (IN)
YESTERDAY 0.00 1.95 1999 0.09 -0.09 0.00
MONTH TO DATE 0.64 2.81 -2.17 1.42
SINCE SEP 1 0.64 2.81 -2.17 1.42
SINCE JAN 1 21.17 26.18 -5.01 25.74
DEGREE DAYS
HEATING
YESTERDAY 0 6 -6 0
MONTH TO DATE 47 86 -39 33
SINCE SEP 1 47 86 -39 33
SINCE JUL 1 58 97 -39 42
COOLING
YESTERDAY 5 1 4 5
MONTH TO DATE 114 86 28 102
SINCE SEP 1 114 86 28 102
SINCE JAN 1 1022 810 212 900
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 4.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 6:00 AM
LOWEST 44 2:00 PM
AVERAGE 67
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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 85 2014
MINIMUM TEMPERATURE (F) 48 35 2018
SUNRISE AND SUNSET
SEPTEMBER 29 2025.....SUNRISE 6:48 AM CDT SUNSET 6:38 PM CDT
SEPTEMBER 30 2025.....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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