868
CDUS41 KPHI 200553
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
153 AM EDT TUE MAY 20 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 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 69 4:09 PM 97 1962 74 -5 78
MINIMUM 48 11:59 PM 32 2009 52 -4 60
AVERAGE 59 63 -4 69
PRECIPITATION (IN)
YESTERDAY 0.00 2.74 1988 0.12 -0.12 T
MONTH TO DATE 7.38 2.17 5.21 2.39
SINCE MAR 1 13.11 9.47 3.64 13.09
SINCE JAN 1 16.44 15.54 0.90 21.74
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 0.0 6.8 -6.8 T
SINCE JUL 1 17.8 33.1 -15.3 25.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 6 4 2 0
MONTH TO DATE 48 112 -64 106
SINCE MAR 1 1044 1270 -226 1113
SINCE JUL 1 5086 5236 -150 4852
COOLING
YESTERDAY 0 2 -2 4
MONTH TO DATE 22 26 -4 20
SINCE MAR 1 23 34 -11 31
SINCE JAN 1 23 34 -11 31
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 10.8
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 78 4:00 AM
LOWEST 36 6:00 PM
AVERAGE 57
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THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 92 1962
1996
MINIMUM TEMPERATURE (F) 52 32 2002
SUNRISE AND SUNSET
MAY 20 2025...........SUNRISE 5:40 AM EDT SUNSET 8:17 PM EDT
MAY 21 2025...........SUNRISE 5:39 AM EDT SUNSET 8:18 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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