331
CDUS43 KLOT 210634
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE OCT 21 2025
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 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 66 3:11 PM 84 2003 61 5 79
MINIMUM 36 6:11 AM 26 2018 41 -5 45
AVERAGE 51 50 1 62
PRECIPITATION (IN)
YESTERDAY 0.02 0.17 2008 0.09 -0.07 0.00
MONTH TO DATE 2.99 2.03 0.96 0.13
SINCE SEP 1 3.63 5.03 -1.40 1.55
SINCE JAN 1 24.16 28.40 -4.24 25.87
DEGREE DAYS
HEATING
YESTERDAY 14 15 -1 3
MONTH TO DATE 100 220 -120 162
SINCE SEP 1 147 320 -173 195
SINCE JUL 1 158 331 -173 204
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 49 9 40 3
SINCE SEP 1 176 97 79 113
SINCE JAN 1 1084 821 263 911
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 11.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 6:00 AM
LOWEST 32 2:00 PM
AVERAGE 62
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 81 2024
MINIMUM TEMPERATURE (F) 40 23 2018
SUNRISE AND SUNSET
OCTOBER 21 2025.......SUNRISE 7:13 AM CDT SUNSET 6:02 PM CDT
OCTOBER 22 2025.......SUNRISE 7:14 AM CDT SUNSET 6:00 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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