587  
CDUS41 KPHI 180551  
CLIPHL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1251 AM EST MON JAN 18 2021  
   
...............................
 
 
   
..THE PHILADELPHIA PA CLIMATE SUMMARY FOR JANUARY 17 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1872 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 2:34 PM 63 1913 40 7 35  
MINIMUM 34 6:45 AM -7 1982 25 9 23  
AVERAGE 41 33 8 29  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.66 1978 0.10 -0.10 0.00  
MONTH TO DATE 1.27 1.66 -0.39 0.72  
SINCE DEC 1 5.65 5.22 0.43 5.93  
SINCE JAN 1 1.27 1.66 -0.39 0.72  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.4 1978 0.2 -0.2 0.0  
MONTH TO DATE 0.0 3.1 -3.1 T  
SINCE DEC 1 6.6 6.5 0.1 0.1  
SINCE JUL 1 6.6 6.8 -0.2 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 32 -8 36  
MONTH TO DATE 453 542 -89 395  
SINCE DEC 1 1261 1396 -135 1201  
SINCE JUL 1 1855 2212 -357 2000  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 14.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 12:00 AM  
LOWEST 47 2:00 PM  
AVERAGE 60  
   
......................................................
 
 
THE PHILADELPHIA PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 64 1990  
2006  
MINIMUM TEMPERATURE (F) 25 -4 1982  
 
SUNRISE AND SUNSET  
JANUARY 18 2021.......SUNRISE 7:19 AM EST SUNSET 5:04 PM EST  
JANUARY 19 2021.......SUNRISE 7:19 AM EST SUNSET 5:05 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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