586
CDUS41 KPHI 180802
CLIABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 AM EDT MON MAY 18 2026
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 17 2026
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)
YESTERDAY
MAXIMUM 86 4:42 PM 92 1951 74 12 82
MINIMUM 59 4:56 AM 32 1956 51 8 61
AVERAGE 73 62 11 72
PRECIPITATION (IN)
YESTERDAY 0.00 1.51 1942 0.11 -0.11 T
MONTH TO DATE 0.76 1.94 -1.18 7.38
SINCE MAR 1 9.49 9.24 0.25 13.11
SINCE JAN 1 13.23 15.31 -2.08 16.44
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 T 6.8 -6.8 0.0
SINCE JUL 1 35.5 33.1 2.4 17.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 142 104 38 41
SINCE MAR 1 1139 1261 -122 1037
SINCE JUL 1 5542 5220 322 5079
COOLING
YESTERDAY 8 2 6 7
MONTH TO DATE 10 22 -12 22
SINCE MAR 1 40 30 10 23
SINCE JAN 1 40 30 10 23
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 6:00 AM
LOWEST 42 3:00 PM
AVERAGE 64
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THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 96 1962
MINIMUM TEMPERATURE (F) 51 32 2023
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:42 AM EDT SUNSET 8:15 PM EDT
MAY 19 2026...........SUNRISE 5:41 AM EDT SUNSET 8:16 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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