717  
CDUS41 KPHI 202129  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
427 PM EST THU DEC 20 2018  
 
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR DECEMBER 20 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 41 359 PM 64 1957 43 -2 50  
1895  
MINIMUM 28 440 AM 1 1942 29 -1 34  
1884  
AVERAGE 35 36 -1 42  
 
PRECIPITATION (IN)  
TODAY 0.14 1.32 1951 0.11 0.03 0.00  
MONTH TO DATE 2.35 2.41 -0.06 0.75  
SINCE DEC 1 2.35 2.41 -0.06 0.75  
SINCE JAN 1 57.49 40.38 17.11 40.78  
 
SNOWFALL (IN)  
TODAY 0.0 3.2 1966 0.1 -0.1 0.0  
MONTH TO DATE 0.3 1.8 -1.5 7.7  
SINCE DEC 1 0.3 1.8 -1.5 7.7  
SINCE JUL 1 3.9 2.1 1.8 7.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 30 29 1 23  
MONTH TO DATE 531 522 9 510  
SINCE DEC 1 531 522 9 510  
SINCE JUL 1 1433 1338 95 1145  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1584 1301 283 1490    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 3.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 79 100 PM  
AVERAGE 90  
   
......................................................
 
 
 
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 2018......SUNRISE 718 AM EST SUNSET 439 PM EST  
DECEMBER 21 2018......SUNRISE 719 AM EST SUNSET 439 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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