898
CDUS41 KPHI 150547
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1247 AM EST MON DEC 15 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 14 2025
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)
YESTERDAY
MAXIMUM 32 3:06 AM 68 2015 43 -11 34
MINIMUM 16 11:02 PM -2 2005 27 -11 11
AVERAGE 24 35 -11 23
PRECIPITATION (IN)
YESTERDAY 0.31 1.72 1956 0.13 0.18 0.00
MONTH TO DATE 1.16 1.90 -0.74 1.63
SINCE DEC 1 1.16 1.90 -0.74 1.63
SINCE JAN 1 36.13 45.40 -9.27 39.83
SNOWFALL (IN)
YESTERDAY 3.7 11.0 1917 0.1 3.6 0.0
MONTH TO DATE 6.2 1.8 4.4 T
SINCE DEC 1 6.2 1.8 4.4 T
SINCE JUL 1 6.4 2.9 3.5 T
SNOW DEPTH 5
DEGREE DAYS
HEATING
YESTERDAY 41 30 11 42
MONTH TO DATE 520 392 128 446
SINCE DEC 1 520 392 128 446
SINCE JUL 1 1532 1428 104 1315
COOLING
YESTERDAY 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 23 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 11.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 6:00 AM
LOWEST 44 6:00 PM
AVERAGE 72
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 66 2015
MINIMUM TEMPERATURE (F) 27 6 1960
2005
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:19 AM EST SUNSET 4:35 PM EST
DECEMBER 16 2025......SUNRISE 7:19 AM EST SUNSET 4:36 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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