191
CDUS41 KPHI 192139
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
439 PM EST FRI DEC 19 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 19 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 59R 8:37 AM 59 1957 42 17 43
MINIMUM 40 3:59 PM 0 1951 26 14 30
AVERAGE 50 34 16 37
PRECIPITATION (IN)
TODAY 0.59 0.93 2008 0.12 0.47 0.00
MONTH TO DATE 1.75 2.51 -0.76 2.33
SINCE DEC 1 1.75 2.51 -0.76 2.33
SINCE JAN 1 36.72 46.01 -9.29 40.53
SNOWFALL (IN)
TODAY 0.0 8.6 1995 0.2 -0.2 0.0
MONTH TO DATE 6.2 2.6 3.6 0.3
SINCE DEC 1 6.2 2.6 3.6 0.3
SINCE JUL 1 6.4 3.7 2.7 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 15 31 -16 28
MONTH TO DATE 696 544 152 590
SINCE DEC 1 696 544 152 590
SINCE JUL 1 1708 1580 128 1459
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 37 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 13.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 57 4:00 PM
AVERAGE 79
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 63 1957
MINIMUM TEMPERATURE (F) 26 -2 1942
1951
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 7:21 AM EST SUNSET 4:37 PM EST
DECEMBER 20 2025......SUNRISE 7:22 AM EST SUNSET 4:37 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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