524  
CDUS41 KPHI 310554  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1254 AM EST THU DEC 31 2020  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR DECEMBER 30 2020
 
 
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)  
YESTERDAY  
MAXIMUM 45 11:59 PM 66 1990 41 4 48  
MINIMUM 23 1:20 AM -7 1917 26 -3 42  
AVERAGE 34 33 1 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.55 1901 0.09 -0.09 0.39  
MONTH TO DATE 5.15 3.39 1.76 4.68  
SINCE DEC 1 5.15 3.39 1.76 4.68  
SINCE JAN 1 53.37 42.99 10.38 47.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.0 1935 0.2 -0.2 0.0  
MONTH TO DATE 2.8 3.3 -0.5 0.3  
SINCE DEC 1 2.8 3.3 -0.5 0.3  
SINCE JUL 1 2.8 3.7 -0.9 0.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 31 32 -1 20  
MONTH TO DATE 816 847 -31 793  
SINCE DEC 1 816 847 -31 793  
SINCE JUL 1 1508 1745 -237 1622  
 
COOLING  
YESTERDAY 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 21 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 9.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 4:00 AM  
LOWEST 43 1:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 67 1992  
MINIMUM TEMPERATURE (F) 25 -4 1917  
 
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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