931  
CDUS41 KPHI 050615  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
115 AM EST TUE DEC 05 2023  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 4 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1922 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 48 1:20 PM 72 1998 47 1 43  
MINIMUM 33 10:58 PM 8 1940 29 4 23  
1966  
AVERAGE 41 38 3 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.63 1950 0.14 -0.14 0.00  
MONTH TO DATE 0.76 0.54 0.22 0.39  
SINCE DEC 1 0.76 0.54 0.22 0.39  
SINCE JAN 1 38.52 44.04 -5.52 42.43  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.1 1957 0.2 -0.2 0.0  
MONTH TO DATE 0.0 0.5 -0.5 0.0  
SINCE DEC 1 0.0 0.5 -0.5 0.0  
SINCE JUL 1 0.0 1.6 -1.6 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 27 -3 32  
MONTH TO DATE 92 106 -14 116  
SINCE DEC 1 92 106 -14 116  
SINCE JUL 1 1179 1145 34 1217  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 790 981 -191 986    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1:00 AM  
LOWEST 58 3:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 69 2001  
MINIMUM TEMPERATURE (F) 29 11 1926  
 
SUNRISE AND SUNSET  
DECEMBER 5 2023......SUNRISE 7:10 AM EST SUNSET 4:34 PM EST  
DECEMBER 6 2023......SUNRISE 7:11 AM EST SUNSET 4:34 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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