419
CDUS41 KPHI 230555
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
155 AM EDT TUE SEP 23 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR SEPTEMBER 22 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 5:00 PM 93 1931 75 -1 78
1980
MINIMUM 51 1:55 AM 36 1997 53 -2 56
2020
AVERAGE 63 64 -1 67
PRECIPITATION (IN)
YESTERDAY 0.00 1.65 1938 0.17 -0.17 0.00
MONTH TO DATE 2.08 3.43 -1.35 0.44
SINCE SEP 1 2.08 3.43 -1.35 0.44
SINCE JAN 1 30.38 34.71 -4.33 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 2 3 -1 0
MONTH TO DATE 14 33 -19 27
SINCE SEP 1 14 33 -19 27
SINCE JUL 1 26 37 -11 36
COOLING
YESTERDAY 0 2 -2 2
MONTH TO DATE 57 94 -37 47
SINCE SEP 1 57 94 -37 47
SINCE JAN 1 876 954 -78 983
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 6:00 AM
LOWEST 53 3:00 PM
AVERAGE 72
......................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1970
MINIMUM TEMPERATURE (F) 53 35 1947
SUNRISE AND SUNSET
SEPTEMBER 23 2025.....SUNRISE 6:51 AM EDT SUNSET 6:57 PM EDT
SEPTEMBER 24 2025.....SUNRISE 6:52 AM EDT SUNSET 6:55 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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