Climatological Report (Monthly)
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000
CXUS43 KLOT 011151
CLMDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
642 AM CDT TUE MAY 1 2018

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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              88   04/18/2002
 LOW               16   04/07/2018
HIGHEST            79   04/30        MM      MM       81
LOWEST             16R  04/07        MM      MM       32
AVG. MAXIMUM     50.7              60.9   -10.2     64.1
AVG. MINIMUM     29.5              37.7    -8.2     41.5
MEAN             40.1              49.3    -9.2     52.8

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.50   1999
 MINIMUM         1.27   2004
TOTALS           1.44              3.35   -1.91     6.11

DEGREE_DAYS
HEATING TOTAL     738               475     263      368
 SINCE 7/1       6496              6066     430     5286
COOLING TOTAL       0                 4      -4        8
 SINCE 1/1          0                 4      -4        8
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
HIGHEST WIND SPEED/DIRECTION    35/060    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    45/050    DATE  04/14

AVERAGE RH (PERCENT)     66


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

$$



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