137  
CDUS41 KPHI 202136  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
436 PM EST SUN DEC 20 2020  
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR DECEMBER 20 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 42 2:53 PM 64 1895 43 -1 36  
1957  
MINIMUM 31 7:23 AM 1 1884 29 2 21  
1942  
AVERAGE 37 36 1 29  
 
PRECIPITATION (IN)  
TODAY T 1.32 1951 0.11 -0.11 0.00  
MONTH TO DATE 2.51 2.41 0.10 4.22  
SINCE DEC 1 2.51 2.41 0.10 4.22  
SINCE JAN 1 47.89 40.38 7.51 46.44  
 
SNOWFALL (IN)  
TODAY T 3.2 1966 0.1 -0.1 0.0  
MONTH TO DATE 6.6 1.8 4.8 0.1  
SINCE DEC 1 6.6 1.8 4.8 0.1  
SINCE JUL 1 6.6 2.1 4.5 0.1  
SNOW DEPTH 3  
 
DEGREE DAYS  
HEATING  
TODAY 28 29 -1 36  
MONTH TO DATE 520 522 -2 536  
SINCE DEC 1 520 522 -2 536  
SINCE JUL 1 1114 1338 -224 1335  
 
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 10 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 11:00 AM  
LOWEST 63 12:00 AM  
AVERAGE 74  
   
......................................................
 
 
THE PHILADELPHIA PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 67 2013  
MINIMUM TEMPERATURE (F) 29 1 1942  
 
SUNRISE AND SUNSET  
DECEMBER 20 2020......SUNRISE 7:19 AM EST SUNSET 4:39 PM EST  
DECEMBER 21 2020......SUNRISE 7:19 AM EST SUNSET 4:40 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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