903
CXUS53 KLOT 011316
CLMDPA

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
816 AM CDT FRI MAY 01 2026

...................................

...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             88   04/18/2002
 LOW              16   04/07/2018
HIGHEST           81   04/14                          84  04/28
LOWEST            26   04/07                          23  04/08
AVG. MAXIMUM    63.9               59.6     4.3     61.4
AVG. MINIMUM    42.2               37.9     4.3     38.8
MEAN            53.1               48.8     4.3     50.1
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     4                8.2    -4.2        8
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.50   1999
 MINIMUM        0.92   2021
TOTALS          5.73               3.44    2.29     2.00
DAILY AVG.      0.19               0.11    0.08     0.07
DAYS >= .01       18               11.6     6.4       12
DAYS >= .10       10                7.3     2.7        4
DAYS >= .50        3                2.1     0.9        2
DAYS >= 1.00       1                0.7     0.3        0
GREATEST
 24 HR. TOTAL   1.88   04/01 TO 04/02               0.77


DEGREE DAYS
HEATING TOTAL    362                492    -130      442
 SINCE 7/1      5676               6118    -442       MM
COOLING TOTAL     12                  4       8        6
 SINCE 1/1        12                  6       6       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.5
HIGHEST WIND SPEED/DIRECTION    39/340    DATE  04/15
HIGHEST GUST SPEED/DIRECTION    53/320    DATE  04/15

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      12
LIGHT RAIN               20     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$