Climatological Report (Monthly)
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000
CXUS43 KLOT 011807
CLMDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1159 AM CST SUN FEB 1 2015

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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              65   01/07/2008
 LOW              -24   01/05/1999
HIGHEST            42   01/17                         41
LOWEST            -10   01/08                        -17
AVG. MAXIMUM     28.9              31.4    -2.5     23.3
AVG. MINIMUM     13.0              15.5    -2.5      4.8
MEAN             21.0              23.5    -2.5     14.1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.72   2003
 MINIMUM         0.50   2002
TOTALS           0.87              1.31   -0.44     0.81

DEGREE_DAYS
HEATING TOTAL    1358              1288      70     1572
 SINCE 7/1       3859              3715     144     4358
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
HIGHEST WIND SPEED/DIRECTION    32/310    DATE  01/09
HIGHEST GUST SPEED/DIRECTION    43/290    DATE  01/08

AVERAGE RH (PERCENT)     75


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

$$




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