058
CDUS41 KPHI 200614
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
114 AM EST SAT DEC 20 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 19 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 59R 8:37 AM 59 1957 42 17 43
MINIMUM 27 11:59 PM 0 1951 26 1 30
AVERAGE 43 34 9 37
PRECIPITATION (IN)
YESTERDAY 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)
YESTERDAY 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
YESTERDAY 22 31 -9 28
MONTH TO DATE 703 544 159 590
SINCE DEC 1 703 544 159 590
SINCE JUL 1 1715 1580 135 1459
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 37 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 16.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 47 6:00 PM
AVERAGE 74
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 63 1957
MINIMUM TEMPERATURE (F) 26 -2 1942
1951
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 7:22 AM EST SUNSET 4:37 PM EST
DECEMBER 21 2025......SUNRISE 7:22 AM EST SUNSET 4:38 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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