793
CDUS41 KPHI 130548
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1248 AM EST SAT DEC 13 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 12 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 3:44 PM 63 1931 44 -12 37
MINIMUM 16 11:57 PM 2 1988 28 -12 19
AVERAGE 24 36 -12 28
PRECIPITATION (IN)
YESTERDAY 0.00 2.10 1983 0.14 -0.14 0.00
MONTH TO DATE 0.77 1.64 -0.87 1.63
SINCE DEC 1 0.77 1.64 -0.87 1.63
SINCE JAN 1 35.74 45.14 -9.40 39.83
SNOWFALL (IN)
YESTERDAY 0.0 3.9 1960 0.1 -0.1 0.0
MONTH TO DATE 1.2 1.5 -0.3 T
SINCE DEC 1 1.2 1.5 -0.3 T
SINCE JUL 1 1.4 2.6 -1.2 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 41 29 12 37
MONTH TO DATE 439 332 107 364
SINCE DEC 1 439 332 107 364
SINCE JUL 1 1451 1368 83 1233
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 15 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 11:00 PM
LOWEST 44 12:00 PM
AVERAGE 59
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THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 68 2015
MINIMUM TEMPERATURE (F) 27 5 1960
1988
1995
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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