250  
CDUS41 KPHI 120551  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1251 AM EST SAT DEC 12 2020  
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR DECEMBER 11 2020
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1872 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 58 3:20 PM 65 1899 46 12 40  
1971  
MINIMUM 30 5:05 AM 8 1880 31 -1 32  
AVERAGE 44 39 5 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.72 2008 0.12 -0.12 0.08  
MONTH TO DATE 1.07 1.37 -0.30 2.34  
SINCE DEC 1 1.07 1.37 -0.30 2.34  
SINCE JAN 1 46.45 39.34 7.11 44.56  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.7 1960 0.1 -0.1 0.1  
MONTH TO DATE T 0.8 -0.8 0.1  
SINCE DEC 1 T 0.8 -0.8 0.1  
SINCE JUL 1 T 1.1 -1.1 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 26 -5 29  
MONTH TO DATE 267 271 -4 275  
SINCE DEC 1 267 271 -4 275  
SINCE JUL 1 861 1087 -226 1074  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1521 1301 220 1610    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 3:00 AM  
LOWEST 51 2:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE PHILADELPHIA PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 69 2015  
MINIMUM TEMPERATURE (F) 31 8 1988  
 
SUNRISE AND SUNSET  
DECEMBER 12 2020......SUNRISE 7:13 AM EST SUNSET 4:36 PM EST  
DECEMBER 13 2020......SUNRISE 7:14 AM EST SUNSET 4:37 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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