368
CXUS51 KPHI 011316
CLMABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
916 AM EDT SUN JUN 01 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR THE MONTH OF MAY 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 97 05/19/1962
LOW 28 05/10/1947
HIGHEST 83 05/02 89 -6 86 05/22
05/25
LOWEST 40 05/01 35 5 40 05/11
AVG. MAXIMUM 70.6 73.5 -2.9 73.0
AVG. MINIMUM 51.1 50.6 0.5 53.7
MEAN 60.8 62.0 -1.2 63.4
DAYS MAX >= 90 0 1.0 -1.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.4 -0.4 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.62 1984
MINIMUM 0.09 1964
TOTALS 10.45 3.65 6.80 3.77
DAILY AVG. 0.34 0.12 0.22 0.12
DAYS >= .01 19 12.4 6.6 14
DAYS >= .10 14 7.6 6.4 9
DAYS >= .50 8 2.6 5.4 4
DAYS >= 1.00 3 0.7 2.3 0
GREATEST
24 HR. TOTAL 2.17 05/13 TO 05/14 0.67
SNOWFALL (INCHES)
RECORDS
TOTAL T 2020
SNOW DEPTH 0 MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 17.8 33.1 -15.3 25.2
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
24 HR TOTAL 0.0 0
DEGREE DAYS
HEATING TOTAL 145 151 -6 114
SINCE 7/1 5183 5275 -92 4860
COOLING TOTAL 26 60 -34 72
SINCE 1/1 27 68 -41 83
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WIND (MPH)
AVERAGE WIND SPEED 7.4
HIGHEST WIND SPEED/DIRECTION 30/230 DATE 05/06
HIGHEST GUST SPEED/DIRECTION 44/250 DATE 05/02
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.53
NUMBER OF DAYS FAIR 10
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 9
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 6 MIXED PRECIP 0
HEAVY RAIN 9 RAIN 12
LIGHT RAIN 22 FREEZING RAIN 0
LT FREEZING RAIN 0 HEAVY SNOW 0
SNOW 0 LIGHT SNOW 0
SLEET 0 FOG 19
FOG W/VIS <= 1/4 MILE 3 HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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