762
CDUS41 KPHI 110546
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
146 AM EDT THU SEP 11 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR SEPTEMBER 10 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 74 2:35 PM 96 1983 80 -6 78
MINIMUM 56 12:30 AM 39 1956 57 -1 52
AVERAGE 65 68 -3 65
PRECIPITATION (IN)
YESTERDAY 0.05 2.75 1950 0.15 -0.10 0.00
MONTH TO DATE 2.07 1.46 0.61 0.44
SINCE SEP 1 2.07 1.46 0.61 0.44
SINCE JAN 1 30.37 32.74 -2.37 35.06
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 9 7 2 25
SINCE SEP 1 9 7 2 25
SINCE JUL 1 21 11 10 34
COOLING
YESTERDAY 0 5 -5 0
MONTH TO DATE 27 55 -28 11
SINCE SEP 1 27 55 -28 11
SINCE JAN 1 846 915 -69 947
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 7:00 AM
LOWEST 51 7:00 PM
AVERAGE 70
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THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 96 1983
MINIMUM TEMPERATURE (F) 57 39 1995
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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