662
CDUS43 KLOT 310635
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT FRI JUL 31 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 30 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 3:26 PM 98 1999 84 0 80
MINIMUM 57 3:20 AM 49 1997 63 -6 69
AVERAGE 71 74 -3 75
PRECIPITATION (IN)
YESTERDAY 0.00 0.84 2000 0.13 -0.13 0.50
MONTH TO DATE 5.33 3.50 1.83 6.96
SINCE JUN 1 11.96 7.15 4.81 9.61
SINCE JAN 1 24.84 19.41 5.43 17.67
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 0
SINCE JUN 1 25 33 -8 18
SINCE JUL 1 1 0 1 0
COOLING
YESTERDAY 6 8 -2 10
MONTH TO DATE 300 265 35 361
SINCE JUN 1 454 440 14 628
SINCE JAN 1 513 496 17 661
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 2.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 41 1:00 PM
AVERAGE 66
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 98 2006
MINIMUM TEMPERATURE (F) 63 50 1997
SUNRISE AND SUNSET
JULY 31 2026..........SUNRISE 5:46 AM CDT SUNSET 8:12 PM CDT
AUGUST 1 2026........SUNRISE 5:47 AM CDT SUNSET 8:11 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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