050
CDUS41 KPHI 112128
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
428 PM EST THU DEC 11 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 11 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 37 2:05 AM 63 2021 44 -7 62
MINIMUM 27 8:46 AM -2 1958 28 -1 36
AVERAGE 32 36 -4 49
PRECIPITATION (IN)
TODAY 0.00 2.18 1952 0.13 -0.13 1.24
MONTH TO DATE 0.77 1.50 -0.73 1.63
SINCE DEC 1 0.77 1.50 -0.73 1.63
SINCE JAN 1 35.74 45.00 -9.26 39.83
SNOWFALL (IN)
TODAY 0.0 6.4 1960 0.1 -0.1 0.0
MONTH TO DATE 1.2 1.4 -0.2 T
SINCE DEC 1 1.2 1.4 -0.2 T
SINCE JUL 1 1.4 2.5 -1.1 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 33 29 4 16
MONTH TO DATE 397 303 94 327
SINCE DEC 1 397 303 94 327
SINCE JUL 1 1409 1339 70 1196
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 924 981 -57 994
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 14.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 12:00 AM
LOWEST 43 11:00 AM
AVERAGE 70
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 63 1931
MINIMUM TEMPERATURE (F) 28 2 1988
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 7:16 AM EST SUNSET 4:35 PM EST
DECEMBER 12 2025......SUNRISE 7:16 AM EST SUNSET 4:35 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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