656  
CDUS41 KPHI 180551  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1251 AM EST MON JAN 18 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR JANUARY 17 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1894 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 49 1:39 PM 63 1913 40 9 35  
MINIMUM 33 6:13 AM -10 1982 24 9 20  
AVERAGE 41 32 9 28  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.51 1978 0.10 -0.10 0.00  
MONTH TO DATE 1.56 1.65 -0.09 1.01  
SINCE DEC 1 6.72 5.13 1.59 5.69  
SINCE JAN 1 1.56 1.65 -0.09 1.01  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.7 1985 0.1 -0.1 0.0  
MONTH TO DATE 0.0 2.6 -2.6 0.4  
SINCE DEC 1 2.8 6.0 -3.2 0.7  
SINCE JUL 1 2.8 6.4 -3.6 0.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 33 -9 37  
MONTH TO DATE 466 555 -89 386  
SINCE DEC 1 1306 1434 -128 1200  
SINCE JUL 1 1998 2332 -334 2029  
 
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 24 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 1:00 AM  
LOWEST 42 1:00 PM  
AVERAGE 57  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 65 1990  
MINIMUM TEMPERATURE (F) 24 -4 1957  
 
SUNRISE AND SUNSET  
JANUARY 18 2021.......SUNRISE 7:20 AM EST SUNSET 5:06 PM EST  
JANUARY 19 2021.......SUNRISE 7:19 AM EST SUNSET 5:07 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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