607
CDUS43 KLOT 170650
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
150 AM CDT MON AUG 17 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 16 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 85 1:51 PM 95 2025 82 3 95
MINIMUM 67 11:53 PM 49 2004 62 5 71
AVERAGE 76 72 4 83
PRECIPITATION (IN)
YESTERDAY 0.06 0.77 2009 0.13 -0.07 0.30
MONTH TO DATE 4.21 2.03 2.18 0.59
SINCE JUN 1 16.25 9.30 6.95 10.20
SINCE JAN 1 29.13 21.56 7.57 18.26
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 25 37 -12 18
SINCE JUL 1 1 4 -3 0
COOLING
YESTERDAY 11 7 4 18
MONTH TO DATE 139 126 13 176
SINCE JUN 1 600 573 27 808
SINCE JAN 1 659 629 30 841
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 8.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 70 5:00 PM
AVERAGE 85
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 87 2015
MINIMUM TEMPERATURE (F) 62 51 2013
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 6:03 AM CDT SUNSET 7:50 PM CDT
AUGUST 18 2026........SUNRISE 6:04 AM CDT SUNSET 7:49 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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