Climatological Report (Daily)
Issued by NWS Mt. Holly, NJ
Issued by NWS Mt. Holly, NJ
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CDUS41 KPHI 172154
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
554 PM EDT THU SEP 17 2026
...................................
...THE ALLENTOWN PA CLIMATE SUMMARY FOR SEPTEMBER 17 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 80 11:08 AM 93 1991 77 3 74
MINIMUM 68 6:10 AM 39 1959 55 13 60
1986
2007
AVERAGE 74 66 8 67
PRECIPITATION (IN)
TODAY T 1.83 1958 0.17 -0.17 0.01
MONTH TO DATE 1.89 2.57 -0.68 2.08
SINCE SEP 1 1.89 2.57 -0.68 2.08
SINCE JAN 1 27.41 33.85 -6.44 30.38
SNOWFALL (IN)
TODAY 0.0 0.0 MM 0.0 0.0 0.0
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 2 -2 0
MONTH TO DATE 7 19 -12 9
SINCE SEP 1 7 19 -12 9
SINCE JUL 1 7 19 -12 21
COOLING
TODAY 9 3 6 2
MONTH TO DATE 103 81 22 45
SINCE SEP 1 103 81 22 45
SINCE JAN 1 973 941 32 864
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 3.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 7:00 AM
LOWEST 67 10:00 AM
AVERAGE 79
..........................................................
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 90 1965
MINIMUM TEMPERATURE (F) 55 36 1990
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:44 AM EDT SUNSET 7:07 PM EDT
SEPTEMBER 18 2026.....SUNRISE 6:45 AM EDT SUNSET 7:05 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$