147
CDUS43 KLOT 201333
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
833 AM CDT THU AUG 20 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 19 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 83 1:35 PM 89 2021 82 1 79
MINIMUM 62 5:34 AM 51 1997 62 0 67
AVERAGE 73 72 1 73
PRECIPITATION (IN)
YESTERDAY T 0.35 2009 0.12 -0.12 0.08
MONTH TO DATE 4.22 2.40 1.82 2.68
SINCE JUN 1 16.26 9.67 6.59 12.29
SINCE JAN 1 29.14 21.93 7.21 20.35
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 8 7 1 8
MONTH TO DATE 161 147 14 212
SINCE JUN 1 622 594 28 844
SINCE JAN 1 681 650 31 877
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 4.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 56 1:00 PM
AVERAGE 78
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 93 2023
MINIMUM TEMPERATURE (F) 62 51 2002
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:06 AM CDT SUNSET 7:46 PM CDT
AUGUST 21 2026........SUNRISE 6:07 AM CDT SUNSET 7:44 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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