247  
CDUS41 KPHI 090604  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
204 AM EDT WED APR 09 2025  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR APRIL 8 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 45 2:58 PM 90 1929 60 -15 64  
MINIMUM 32 11:59 PM 20 1982 38 -6 30  
AVERAGE 39 49 -10 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.17 1983 0.13 -0.13 T  
MONTH TO DATE 0.76 0.96 -0.20 3.60  
SINCE MAR 1 4.44 4.59 -0.15 8.74  
SINCE JAN 1 7.77 10.66 -2.89 17.39  
 
SNOWFALL (IN)  
YESTERDAY 0.0 7.0 1916 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.3 -0.3 0.0  
SINCE MAR 1 0.0 6.6 -6.6 T  
SINCE JUL 1 17.8 32.9 -15.1 25.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 26 16 10 18  
MONTH TO DATE 137 140 -3 156  
SINCE MAR 1 755 895 -140 783  
SINCE JUL 1 4797 4861 -64 4522  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 14.7  
 
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 93 12:00 AM  
LOWEST 25 8:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 84 1922  
MINIMUM TEMPERATURE (F) 38 22 1977  
 
SUNRISE AND SUNSET  
APRIL 9 2025.........SUNRISE 6:32 AM EDT SUNSET 7:35 PM EDT  
APRIL 10 2025.........SUNRISE 6:30 AM EDT SUNSET 7:36 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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