Climatological Report (Daily)
Issued by NWS Mt. Holly, NJ

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000
CDUS41 KPHI 120601
CLIABE


CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
101 AM EST TUE DEC 12 2017


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

...THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 11 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1922 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39    134 PM  61    1979  42     -3       32
                                      1952
  MINIMUM         27    824 AM  -2    1958  25      2       20
  AVERAGE         33                        34     -1       26

PRECIPITATION (IN)
  YESTERDAY        0.00          2.18 1952   0.13  -0.13     0.01
  MONTH TO DATE    0.53                      1.44  -0.91     0.82
  SINCE DEC 1      0.53                      1.44  -0.91     0.82
  SINCE JAN 1     48.83                     43.21   5.62    35.21

SNOWFALL (IN)
  YESTERDAY        0.0           6.4  1960   0.2   -0.2       T
  MONTH TO DATE    4.9                       1.4    3.5       T
  SINCE DEC 1      4.9                       1.4    3.5       T
  SINCE JUL 1      4.9                       2.1    2.8       T
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       32                        32      0       39
  MONTH TO DATE  310                       327    -17      307
  SINCE DEC 1    310                       327    -17      307
  SINCE JUL 1   1223                      1507   -284     1212

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1004                       757    247     1223
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     6.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72           400 AM
 LOWEST     48           100 PM
 AVERAGE    60

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


THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   41        63      1931
 MINIMUM TEMPERATURE (F)   25         2      1988


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   716 AM EST   SUNSET   435 PM EST
DECEMBER 13 2017......SUNRISE   717 AM EST   SUNSET   435 PM EST


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




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