Climatological Report (Monthly)
Issued by NWS Chicago, IL

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CXUS53 KLOT 011323
CLMLOT


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
712 AM CST THU JAN 1 2015

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

...THE ROMEOVILLE  WFO CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1992 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              71   12/03/2012
 LOW              -11   12/25/2000
                        12/22/2000
HIGHEST            50   12/26        MM      MM       56
LOWEST              3   12/31        MM      MM       -9
AVG. MAXIMUM     36.8              34.7     2.1     30.5
AVG. MINIMUM     26.5              20.0     6.5     13.7
MEAN             31.7              27.4     4.3     22.1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.24   2008
 MINIMUM         0.58   1995
TOTALS           1.05              2.25   -1.20     1.34

SNOWFALL (INCHES)
RECORDS
 TOTAL           30.0   2000
TOTALS              T               9.3    -9.3     12.2
SINCE 7/1         1.4              10.2    -8.8     13.1

DEGREE_DAYS
HEATING TOTAL    1027              1167    -140     1322
 SINCE 7/1       2503              2386     117     2644
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        748               862    -114      950
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
HIGHEST WIND SPEED/DIRECTION    21/MM     DATE   MM
HIGHEST GUST SPEED/DIRECTION    31/MM     DATE   MM

AVERAGE RH (PERCENT)     80


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

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