291  
CDUS41 KPHI 010611  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
111 AM EST WED JAN 01 2025  
   
...............................  
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 31 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 54 1:53 PM 61 1932 40 14 41  
1965  
1972  
MINIMUM 25 7:44 AM -6 1963 24 1 34  
AVERAGE 40 32 8 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.62 1.04 2018 0.11 0.51 T  
MONTH TO DATE 3.86 3.86 0.00 8.62  
SINCE DEC 1 3.86 3.86 0.00 8.62  
SINCE JAN 1 42.06 47.36 -5.30 46.38  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.0 1898 0.2 -0.2 0.0  
MONTH TO DATE 4.8 4.6 0.2 T  
SINCE DEC 1 4.8 4.6 0.2 T  
SINCE JUL 1 4.8 5.7 -0.9 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 25 33 -8 27  
MONTH TO DATE 1001 931 70 790  
SINCE DEC 1 1001 931 70 790  
SINCE JUL 1 1870 1970 -100 1877  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 994 981 13 790    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 11:00 PM  
LOWEST 40 2:00 PM  
AVERAGE 67  
   
......................................................  
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 62 2005  
MINIMUM TEMPERATURE (F) 24 -3 1968  
 
SUNRISE AND SUNSET  
JANUARY 1 2025.......SUNRISE 7:26 AM EST SUNSET 4:46 PM EST  
JANUARY 2 2025.......SUNRISE 7:26 AM EST SUNSET 4:46 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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