889
CDUS43 KLOT 210640
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT THU MAY 21 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 20 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 61 1:55 PM 91 2012 72 -11 58
MINIMUM 41 11:32 PM 32 2002 50 -9 49
AVERAGE 51 61 -10 54
PRECIPITATION (IN)
YESTERDAY 0.00 0.73 2013 0.14 -0.14 0.61
2022
MONTH TO DATE 0.83 2.89 -2.06 1.33
SINCE MAR 1 11.13 8.30 2.83 6.23
SINCE JAN 1 12.38 10.81 1.57 7.80
DEGREE DAYS
HEATING
YESTERDAY 14 6 8 11
MONTH TO DATE 206 165 41 143
SINCE MAR 1 1240 1507 -267 1247
SINCE JUL 1 5882 6284 -402 5568
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 26 20 6 27
SINCE MAR 1 38 26 12 33
SINCE JAN 1 38 26 12 33
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 11.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 5:00 AM
LOWEST 47 4:00 PM
AVERAGE 64
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 2024
MINIMUM TEMPERATURE (F) 51 26 2002
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:27 AM CDT SUNSET 8:12 PM CDT
MAY 22 2026...........SUNRISE 5:26 AM CDT SUNSET 8:13 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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