353
CDUS43 KLOT 190642
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
142 AM CDT WED AUG 19 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 18 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 79 1:10 PM 88 2025 82 -3 88
MINIMUM 62 4:48 AM 48 2012 62 0 71
AVERAGE 71 72 -1 80
PRECIPITATION (IN)
YESTERDAY 0.01 1.42 2025 0.12 -0.11 1.42
MONTH TO DATE 4.22 2.28 1.94 2.60
SINCE JUN 1 16.26 9.55 6.71 12.21
SINCE JAN 1 29.14 21.81 7.33 20.27
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 6 7 -1 15
MONTH TO DATE 153 140 13 204
SINCE JUN 1 614 587 27 836
SINCE JAN 1 673 643 30 869
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 7.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 11:00 PM
LOWEST 66 10:00 AM
AVERAGE 83
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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 89 2021
MINIMUM TEMPERATURE (F) 62 51 1997
SUNRISE AND SUNSET
AUGUST 19 2026........SUNRISE 6:05 AM CDT SUNSET 7:47 PM CDT
AUGUST 20 2026........SUNRISE 6:06 AM CDT SUNSET 7:46 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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