987  
CDUS41 KPHI 172149  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
449 PM EST THU DEC 17 2020  
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR DECEMBER 17 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 36 3:59 PM 65 2000 44 -8 38  
MINIMUM 25 5:57 AM 7 1876 30 -5 34  
1919  
AVERAGE 31 37 -6 36  
 
PRECIPITATION (IN)  
TODAY 0.21 2.23 1888 0.11 0.10 0.82  
MONTH TO DATE 2.51 2.08 0.43 4.22  
SINCE DEC 1 2.51 2.08 0.43 4.22  
SINCE JAN 1 47.89 40.05 7.84 46.44  
 
SNOWFALL (IN)  
TODAY 0.3 7.3 1932 0.1 0.2 0.0  
MONTH TO DATE 6.6 1.4 5.2 0.1  
SINCE DEC 1 6.6 1.4 5.2 0.1  
SINCE JUL 1 6.6 1.7 4.9 0.1  
SNOW DEPTH 3  
 
DEGREE DAYS  
HEATING  
TODAY 34 28 6 29  
MONTH TO DATE 419 436 -17 426  
SINCE DEC 1 419 436 -17 426  
SINCE JUL 1 1013 1252 -239 1225  
 
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 30 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 15.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
LT FREEZING RAIN  
LIGHT SNOW  
SLEET  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 12:00 AM  
LOWEST 64 1:00 PM  
AVERAGE 78  
   
......................................................
 
 
THE PHILADELPHIA PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 70 2006  
MINIMUM TEMPERATURE (F) 29 4 1919  
 
SUNRISE AND SUNSET  
DECEMBER 17 2020......SUNRISE 7:17 AM EST SUNSET 4:38 PM EST  
DECEMBER 18 2020......SUNRISE 7:18 AM EST SUNSET 4:38 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PA Page
The Nexlab NJ Page
The Nexlab DE Page
The Nexlab MD Page Main Text Page