875
CDUS41 KPHI 112144
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
544 PM EDT THU SEP 11 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR SEPTEMBER 11 2025
VALID TODAY AS OF 0500 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 79 3:00 PM 96 1983 79 0 80
MINIMUM 54 6:00 AM 39 1995 57 -3 49
AVERAGE 67 68 -1 65
PRECIPITATION (IN)
TODAY 0.00 3.02 1997 0.15 -0.15 0.00
MONTH TO DATE 2.07 1.61 0.46 0.44
SINCE SEP 1 2.07 1.61 0.46 0.44
SINCE JAN 1 30.37 32.89 -2.52 35.06
SNOWFALL (IN)
TODAY 0.0 0.0 2001 0.0 0.0 0.0
2002
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 9 8 1 25
SINCE SEP 1 9 8 1 25
SINCE JUL 1 21 12 9 34
COOLING
TODAY 2 4 -2 0
MONTH TO DATE 29 59 -30 11
SINCE SEP 1 29 59 -30 11
SINCE JAN 1 848 919 -71 947
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 3.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 2:00 AM
LOWEST 36 2:00 PM
AVERAGE 67
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 93 1931
MINIMUM TEMPERATURE (F) 57 37 1967
SUNRISE AND SUNSET
SEPTEMBER 11 2025.....SUNRISE 6:39 AM EDT SUNSET 7:17 PM EDT
SEPTEMBER 12 2025.....SUNRISE 6:40 AM EDT SUNSET 7:15 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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