284  
CXUS51 KPHI 020030  
CLMABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
830 PM EDT WED MAY 01 2024  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR THE MONTH OF APRIL 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1922 TO 2024  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 93 04/18/1976  
LOW 12 04/01/1923  
HIGHEST 88 82 6 88  
LOWEST 30 26 4 25  
AVG. MAXIMUM 63.1 63.4 -0.3 65.9  
AVG. MINIMUM 41.8 40.3 1.5 42.0  
MEAN 52.5 51.8 0.7 53.9  
DAYS MAX >= 90 0 0.2 -0.2 0  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 4 6.1 -2.1 5  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 10.09 1952  
MINIMUM 0.61 1985  
TOTALS 5.56 3.67 1.89 6.00  
DAILY AVG. 0.19 0.12 0.07 0.20  
DAYS >= .01 13 11.8 1.2 10  
DAYS >= .10 8 6.8 1.2 7  
DAYS >= .50 3 2.3 0.7 3  
DAYS >= 1.00 3 0.9 2.1 2  
GREATEST  
24 HR. TOTAL 2.00 04/03 TO 04/04 2.35  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL 13.4 1982  
24 HR TOTAL MM  
TOTALS 0.0 0.5 -0.5 0.0  
SINCE 7/1 25.2 33.1 -7.9 MM  
SNOWDEPTH AVG. 0 0  
DAYS >= 1.0 0 0.1 -0.1 0  
GREATEST  
SNOW DEPTH 0 0 MM  
24 HR TOTAL MM 0.0  
 
DEGREE DAYS  
HEATING TOTAL 380 403 -23 336  
SINCE 7/1 4746 5124 -378 MM  
COOLING TOTAL 11 8 3 13  
SINCE 1/1 11 8 3 MM    
............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 7.8  
HIGHEST WIND SPEED/DIRECTION 38/090 DATE 04/03  
HIGHEST GUST SPEED/DIRECTION 47/080 DATE 04/03  
 
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 10  
 
AVERAGE RH (PERCENT) 63  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 4 MIXED PRECIP 0  
HEAVY RAIN 4 RAIN 9  
LIGHT RAIN 19 FREEZING RAIN 0  
LT FREEZING RAIN 0 HEAVY SNOW 0  
SNOW 0 LIGHT SNOW 0  
SLEET 0 FOG 9  
FOG W/VIS <= 1/4 MILE 1 HAZE 4  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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