575
CDUS43 KLOT 180655
CLIDPA
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
155 AM CDT MON MAY 18 2026
...............................
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 17 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 86R MM 85 1998 71 15 72
2001
MINIMUM 64 5:12 AM 32 2002 49 15 53
AVERAGE 75 60 15 63
PRECIPITATION (IN)
YESTERDAY 0.00 2.12 2020 0.13 -0.13 0.00
MONTH TO DATE 0.50 2.46 -1.96 0.72
SINCE MAR 1 10.80 7.87 2.93 5.62
SINCE JAN 1 12.05 10.38 1.67 7.19
DEGREE DAYS
HEATING
YESTERDAY 0 6 -6 2
MONTH TO DATE 192 147 45 108
SINCE MAR 1 1226 1489 -263 1212
SINCE JUL 1 5868 6266 -398 5533
COOLING
YESTERDAY 10 2 8 0
MONTH TO DATE 16 14 2 27
SINCE MAR 1 28 20 8 33
SINCE JAN 1 28 20 8 33
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 14.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 48 4:00 PM
AVERAGE 71
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THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 89 1998
MINIMUM TEMPERATURE (F) 49 30 2002
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:30 AM CDT SUNSET 8:10 PM CDT
MAY 19 2026...........SUNRISE 5:29 AM CDT SUNSET 8:11 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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