Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 300633
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU JUL 30 2026
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR JULY 29 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 80 4:16 PM 95 1999 84 -4 91
MINIMUM 58 5:07 AM 52 1997 63 -5 69
2003
2013
AVERAGE 69 74 -5 80
PRECIPITATION (IN)
YESTERDAY 0.00 0.53 2016 0.11 -0.11 0.00
MONTH TO DATE 5.33 3.37 1.96 6.46
SINCE JUN 1 11.96 7.02 4.94 9.11
SINCE JAN 1 24.84 19.28 5.56 17.17
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 4 9 -5 15
MONTH TO DATE 294 257 37 351
SINCE JUN 1 448 432 16 618
SINCE JAN 1 507 488 19 651
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 7.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 39 6:00 PM
AVERAGE 68
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 98 1999
MINIMUM TEMPERATURE (F) 63 49 1997
SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE 5:45 AM CDT SUNSET 8:13 PM CDT
JULY 31 2026..........SUNRISE 5:46 AM CDT SUNSET 8:12 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$