Climatological Report (Daily)
Issued by NWS
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027
CDUS43 KLOT 110634
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT FRI SEP 11 2026
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 10 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 77 MM 92 2005 78 -1 82
2013
MINIMUM 57 MM 42 1999 56 1 54
2017
AVERAGE 67 67 0 68
PRECIPITATION (IN)
YESTERDAY 0.00 1.41 2014 0.10 -0.10 0.00
MONTH TO DATE T 1.01 -1.01 0.03
SINCE SEP 1 T 1.01 -1.01 0.03
SINCE JAN 1 29.14 24.38 4.76 20.56
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 0 13 -13 47
SINCE SEP 1 0 13 -13 47
SINCE JUL 1 1 24 -23 58
COOLING
YESTERDAY 2 4 -2 3
MONTH TO DATE 116 44 72 5
SINCE SEP 1 116 44 72 5
SINCE JAN 1 797 768 29 913
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 2.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 51 5:00 PM
AVERAGE 76
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 91 2005
2019
MINIMUM TEMPERATURE (F) 56 43 1999
SUNRISE AND SUNSET
SEPTEMBER 11 2026.....SUNRISE 6:29 AM CDT SUNSET 7:09 PM CDT
SEPTEMBER 12 2026.....SUNRISE 6:30 AM CDT SUNSET 7:08 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$