216  
CDUS41 KPHI 312139  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
439 PM EST THU DEC 31 2020  
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR DECEMBER 31 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 49 8:55 AM 66 1884 41 8 47  
MINIMUM 42 3:59 PM 0 1880 27 15 39  
AVERAGE 46 34 12 43  
 
PRECIPITATION (IN)  
TODAY 0.04 1.09 1911 0.09 -0.05 0.00  
MONTH TO DATE 4.38 3.56 0.82 5.21  
SINCE DEC 1 4.38 3.56 0.82 5.21  
SINCE JAN 1 49.76 41.53 8.23 47.43  
 
SNOWFALL (IN)  
TODAY 0.0 3.8 1967 0.2 -0.2 0.0  
MONTH TO DATE 6.6 3.4 3.2 0.1  
SINCE DEC 1 6.6 3.4 3.2 0.1  
SINCE JUL 1 6.6 3.7 2.9 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 19 31 -12 22  
MONTH TO DATE 804 854 -50 806  
SINCE DEC 1 804 854 -50 806  
SINCE JUL 1 1398 1670 -272 1605  
 
COOLING  
TODAY 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 21 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 9:00 AM  
LOWEST 63 12:00 AM  
AVERAGE 77  
   
......................................................
 
 
THE PHILADELPHIA PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 64 2005  
MINIMUM TEMPERATURE (F) 27 4 1881  
 
SUNRISE AND SUNSET  
DECEMBER 31 2020......SUNRISE 7:22 AM EST SUNSET 4:46 PM EST  
JANUARY 1 2021.......SUNRISE 7:23 AM EST SUNSET 4:47 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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