403  
CDUS41 KPHI 160606  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
206 AM EDT FRI MAY 16 2025  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 15 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 74 4:50 PM 90 2018 73 1 67  
MINIMUM 59 11:51 PM 35 1936 50 9 57  
AVERAGE 67 62 5 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 1.25 1938 0.11 -0.09 0.22  
MONTH TO DATE 6.84 1.71 5.13 2.29  
SINCE MAR 1 12.57 9.01 3.56 12.99  
SINCE JAN 1 15.90 15.08 0.82 21.64  
 
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 0 5 -5 3  
MONTH TO DATE 41 95 -54 98  
SINCE MAR 1 1037 1253 -216 1105  
SINCE JUL 1 5079 5219 -140 4844  
 
COOLING  
YESTERDAY 2 2 0 0  
MONTH TO DATE 12 18 -6 16  
SINCE MAR 1 13 26 -13 27  
SINCE JAN 1 13 26 -13 27    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 11:00 PM  
LOWEST 71 4:00 PM  
AVERAGE 86  
   
......................................................
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 89 1951  
1998  
MINIMUM TEMPERATURE (F) 51 37 1939  
2016  
 
SUNRISE AND SUNSET  
MAY 16 2025...........SUNRISE 5:44 AM EDT SUNSET 8:13 PM EDT  
MAY 17 2025...........SUNRISE 5:43 AM EDT SUNSET 8:14 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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