Climatological Report (Daily)
Issued by NWS
Issued by NWS
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799
CDUS43 KLOT 280714
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
214 AM CDT TUE JUL 28 2026
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 27 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 9:17 AM 91 1997 84 0 90
2011
2023
MINIMUM 71 2:06 PM 53 2013 64 7 72
AVERAGE 78 74 4 81
PRECIPITATION (IN)
YESTERDAY 1.34 1.53 2025 0.12 1.22 1.53
MONTH TO DATE 5.33 3.14 2.19 6.38
SINCE JUN 1 11.96 6.79 5.17 9.03
SINCE JAN 1 24.84 19.05 5.79 17.09
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 13 9 4 16
MONTH TO DATE 283 239 44 318
SINCE JUN 1 437 414 23 585
SINCE JAN 1 496 470 26 618
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 41 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 56 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 82 4:00 PM
AVERAGE 91
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 93 2025
MINIMUM TEMPERATURE (F) 63 53 2013
SUNRISE AND SUNSET
JULY 28 2026..........SUNRISE 5:43 AM CDT SUNSET 8:16 PM CDT
JULY 29 2026..........SUNRISE 5:44 AM CDT SUNSET 8:15 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$