218  
CDUS41 KPHI 312139  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
439 PM EST THU DEC 31 2020  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR DECEMBER 31 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1894 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 49 5:57 AM 67 1992 41 8 49  
MINIMUM 42 3:59 PM -4 1917 25 17 39  
AVERAGE 46 33 13 44  
 
PRECIPITATION (IN)  
TODAY 0.01 1.08 1911 0.09 -0.08 0.00  
MONTH TO DATE 5.16 3.48 1.68 4.68  
SINCE DEC 1 5.16 3.48 1.68 4.68  
SINCE JAN 1 53.38 43.08 10.30 47.97  
 
SNOWFALL (IN)  
TODAY 0.0 3.5 1967 0.1 -0.1 0.0  
MONTH TO DATE 2.8 3.4 -0.6 0.3  
SINCE DEC 1 2.8 3.4 -0.6 0.3  
SINCE JUL 1 2.8 3.8 -1.0 0.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 19 32 -13 21  
MONTH TO DATE 835 879 -44 814  
SINCE DEC 1 835 879 -44 814  
SINCE JUL 1 1527 1777 -250 1643  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1300 1145 155 1508    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 9:00 AM  
LOWEST 62 3:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 65 1973  
2005  
MINIMUM TEMPERATURE (F) 25 0 1918  
 
SUNRISE AND SUNSET  
DECEMBER 31 2020......SUNRISE 7:23 AM EST SUNSET 4:48 PM EST  
JANUARY 1 2021.......SUNRISE 7:23 AM EST SUNSET 4:49 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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