677
CDUS43 KLOT 212154
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
454 PM CDT THU MAY 21 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 21 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 61 2:43 PM 89 2024 73 -12 53
MINIMUM 43 1:28 AM 26 2002 51 -8 49
AVERAGE 52 62 -10 51
PRECIPITATION (IN)
TODAY 0.00 1.48 2018 0.14 -0.14 0.03
MONTH TO DATE 0.83 3.03 -2.20 1.36
SINCE MAR 1 11.13 8.44 2.69 6.26
SINCE JAN 1 12.38 10.95 1.43 7.83
DEGREE DAYS
HEATING
TODAY 13 5 8 14
MONTH TO DATE 219 170 49 157
SINCE MAR 1 1253 1512 -259 1261
SINCE JUL 1 5895 6289 -394 5582
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 26 22 4 27
SINCE MAR 1 38 28 10 33
SINCE JAN 1 38 28 10 33
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 11.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 12:00 AM
LOWEST 57 3:00 PM
AVERAGE 67
......................................................
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 88 2011
MINIMUM TEMPERATURE (F) 51 34 2006
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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