Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 170647
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
147 AM CDT SAT MAY 17 2025
...................................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 16 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 2:59 PM 88 2001 71 15 75
MINIMUM 56 MM 34 2011 49 7 48
AVERAGE 71 60 11 62
PRECIPITATION (IN)
YESTERDAY 0.01 0.80 2002 0.14 -0.13 0.00
MONTH TO DATE 0.72 2.33 -1.61 2.07
SINCE MAR 1 5.62 7.74 -2.12 8.84
SINCE JAN 1 7.19 10.25 -3.06 11.29
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 3
MONTH TO DATE 106 141 -35 71
SINCE MAR 1 1210 1483 -273 1162
SINCE JUL 1 5530 6260 -730 5223
COOLING
YESTERDAY 6 1 5 0
MONTH TO DATE 27 12 15 7
SINCE MAR 1 33 18 15 15
SINCE JAN 1 33 18 15 15
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 17.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 3:00 AM
LOWEST 22 4:00 PM
AVERAGE 47
..........................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 85 1998
2001
MINIMUM TEMPERATURE (F) 49 32 2002
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 5:31 AM CDT SUNSET 8:09 PM CDT
MAY 18 2025...........SUNRISE 5:30 AM CDT SUNSET 8:10 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$