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522
CXUS51 KPHI 021247
CLMABE


CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
746 AM EST FRI JAN 2 2015

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

...THE ALLENTOWN CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1922 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              72   12/01/2006
                        12/04/1998
                        12/29/1984
 LOW               -9   12/31/1917
HIGHEST            63                59       4       65
LOWEST             16                 8       8        9
AVG. MAXIMUM     43.8              40.5     3.3     40.3
AVG. MINIMUM     30.1              24.0     6.1     23.2
MEAN             37.0              32.3     4.7     31.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      2               5.6    -3.6        8
DAYS MIN <= 32     20              25.4    -5.4       26
DAYS MIN <= 0       0               0.2    -0.2        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.89   1973
 MINIMUM         0.39   1955
TOTALS           3.65              3.58    0.07     4.04
DAILY AVG.       0.12              0.12    0.00     0.13
DAYS >= .01        14              10.9     3.1       15
DAYS >= .10         8               6.4     1.6       10
DAYS >= .50         2               2.6    -0.6        4
DAYS >= 1.00        1               0.8     0.2        0
GREATEST
 24 HR. TOTAL    1.06   12/09 TO 12/09              0.86
                        12/08 TO 12/09
                        12/09 TO 12/09

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   5
 24 HR TOTAL       MM
TOTALS            0.6               5.2    -4.6     13.7
SINCE 7/1         6.3               5.9     0.4     13.7
SNOWDEPTH AVG.      0                MM      MM        1
DAYS >= 1.0         0               1.7    -1.7        4
GREATEST
 SNOW DEPTH         1   12/01                          6  12/18
                                                          12/17
                                                          12/16
 24 HR TOTAL      0.4   MM                           6.6

DEGREE_DAYS
HEATING TOTAL     860              1015    -155     1023
 SINCE 7/1       1995              2195    -200     2182
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        807               757      50      927
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
HIGHEST WIND SPEED/DIRECTION    28/230    DATE  12/25
HIGHEST GUST SPEED/DIRECTION    39/240    DATE  12/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       6
LIGHT RAIN               14     FREEZING RAIN              1
LT FREEZING RAIN          2     HEAVY SNOW                 0
SNOW                      0     LIGHT SNOW                 4
SLEET                     2     FOG                       17
FOG W/VIS <= 1/4 MILE     2     HAZE                       7

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

$$




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