650
CDUS41 KPHI 042138
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
438 PM EST THU DEC 04 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 4 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 39 MM 72 1998 47 -8 39
MINIMUM 23 MM 8 1940 29 -6 20
1966
AVERAGE 31 38 -7 30
PRECIPITATION (IN)
TODAY 0.00 1.63 1950 0.14 -0.14 T
MONTH TO DATE 0.55 0.54 0.01 T
SINCE DEC 1 0.55 0.54 0.01 T
SINCE JAN 1 35.52 44.04 -8.52 38.20
SNOWFALL (IN)
TODAY 0.0 4.1 1957 0.2 -0.2 T
MONTH TO DATE 0.8 0.5 0.3 T
SINCE DEC 1 0.8 0.5 0.3 T
SINCE JUL 1 1.0 1.6 -0.6 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 34 27 7 35
MONTH TO DATE 133 106 27 142
SINCE DEC 1 133 106 27 142
SINCE JUL 1 1145 1142 3 1011
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 17 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 4:00 AM
LOWEST 52 4:00 PM
AVERAGE 69
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 69 2001
MINIMUM TEMPERATURE (F) 29 11 1926
SUNRISE AND SUNSET
DECEMBER 4 2025......SUNRISE 7:09 AM EST SUNSET 4:35 PM EST
DECEMBER 5 2025......SUNRISE 7:10 AM EST SUNSET 4:34 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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