209
CDUS41 KPHI 132123
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
423 PM EST SAT DEC 13 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 13 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 35 3:13 PM 68 2015 44 -9 32
MINIMUM 14 3:18 AM 5 1960 27 -13 17
1988
1995
AVERAGE 25 36 -11 25
PRECIPITATION (IN)
TODAY 0.00 1.48 1996 0.13 -0.13 0.00
MONTH TO DATE 0.77 1.77 -1.00 1.63
SINCE DEC 1 0.77 1.77 -1.00 1.63
SINCE JAN 1 35.74 45.27 -9.53 39.83
SNOWFALL (IN)
TODAY 0.0 7.2 1966 0.2 -0.2 0.0
MONTH TO DATE 1.2 1.7 -0.5 T
SINCE DEC 1 1.2 1.7 -0.5 T
SINCE JUL 1 1.4 2.8 -1.4 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 40 30 10 40
MONTH TO DATE 479 362 117 404
SINCE DEC 1 479 362 117 404
SINCE JUL 1 1491 1398 93 1273
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 9 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 1.9
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 87 2:00 AM
LOWEST 61 3:00 PM
AVERAGE 74
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 68 2015
MINIMUM TEMPERATURE (F) 27 -2 2005
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 7:17 AM EST SUNSET 4:35 PM EST
DECEMBER 14 2025......SUNRISE 7:18 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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