230  
CDUS41 KPHI 212134  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
434 PM EST MON DEC 21 2020  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR DECEMBER 21 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 39 1:03 PM 68 2013 43 -4 38  
MINIMUM 35 6:30 AM -1 1942 27 8 22  
AVERAGE 37 35 2 30  
 
PRECIPITATION (IN)  
TODAY 0.00 1.95 1905 0.11 -0.11 0.00  
MONTH TO DATE 2.69 2.48 0.21 3.77  
SINCE DEC 1 2.69 2.48 0.21 3.77  
SINCE JAN 1 50.91 42.08 8.83 47.06  
 
SNOWFALL (IN)  
TODAY 0.0 3.3 1962 0.1 -0.1 0.0  
MONTH TO DATE 2.8 2.2 0.6 0.3  
SINCE DEC 1 2.8 2.2 0.6 0.3  
SINCE JUL 1 2.8 2.6 0.2 0.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 28 30 -2 35  
MONTH TO DATE 566 568 -2 576  
SINCE DEC 1 566 568 -2 576  
SINCE JUL 1 1258 1466 -208 1405  
 
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 10 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 8:00 AM  
LOWEST 85 2:00 PM  
AVERAGE 91  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 70 2013  
MINIMUM TEMPERATURE (F) 27 5 1989  
 
SUNRISE AND SUNSET  
DECEMBER 21 2020......SUNRISE 7:20 AM EST SUNSET 4:42 PM EST  
DECEMBER 22 2020......SUNRISE 7:20 AM EST SUNSET 4:42 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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