852  
CDUS41 KPHI 160543  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
143 AM EDT THU MAY 16 2024  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 15 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1922 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 10:28 AM 90 2018 73 -6 73  
MINIMUM 57 11:28 PM 35 1936 50 7 39  
AVERAGE 62 62 0 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.22 1.25 1938 0.11 0.11 0.00  
MONTH TO DATE 2.29 1.71 0.58 0.19  
SINCE MAR 1 12.99 9.01 3.98 8.97  
SINCE JAN 1 21.64 15.08 6.56 14.09  
 
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 1.2  
SINCE JUL 1 25.2 33.1 -7.9 6.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 5 -2 9  
MONTH TO DATE 98 95 3 124  
SINCE MAR 1 1105 1253 -148 1219  
SINCE JUL 1 4844 5219 -375 4924  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 16 18 -2 4  
SINCE MAR 1 27 26 1 17  
SINCE JAN 1 27 26 1 17    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 65 3:00 PM  
AVERAGE 79  
   
......................................................
 
 
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 2024...........SUNRISE 5:43 AM EDT SUNSET 8:13 PM EDT  
MAY 17 2024...........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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