Climatological Report (Monthly)
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CXUS43 KLOT 011351
CLMDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
835 AM CDT MON MAY 1 2017

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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              88   04/18/2002
 LOW               18   04/03/2013
HIGHEST            81   04/15        MM      MM       83
LOWEST             32   04/23        MM      MM       20
                        04/01
AVG. MAXIMUM     64.1              60.9     3.2     58.5
AVG. MINIMUM     41.5              37.7     3.8     37.1
MEAN             52.8              49.3     3.5     47.8

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.50   1999
 MINIMUM         1.27   2004
TOTALS           6.11              3.35    2.76     2.85

DEGREE_DAYS
HEATING TOTAL     368               475    -107      515
 SINCE 7/1       5286              6066    -780     5394
COOLING TOTAL       8                 4       4        6
 SINCE 1/1          8                 4       4        6
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.6
HIGHEST WIND SPEED/DIRECTION    37/080    DATE  04/29
HIGHEST GUST SPEED/DIRECTION    46/060    DATE  04/29

AVERAGE RH (PERCENT)     71


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

$$



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