170  
CDUS41 KPHI 120601  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
101 AM EST TUE DEC 12 2017  
 
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR DECEMBER 11 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1894 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 44 326 PM 70 1899 46 -2 36  
MINIMUM 33 701 AM 10 1968 30 3 23  
1917  
AVERAGE 39 38 1 30  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.14 2008 0.13 -0.13 0.00  
MONTH TO DATE 0.52 1.37 -0.85 0.81  
SINCE DEC 1 0.52 1.37 -0.85 0.81  
SINCE JAN 1 39.19 40.97 -1.78 39.00  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.7 1960 0.1 -0.1 0.0  
MONTH TO DATE 4.1 1.0 3.1 T  
SINCE DEC 1 4.1 1.0 3.1 T  
SINCE JUL 1 4.1 1.4 2.7 T  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
YESTERDAY 26 27 -1 35  
MONTH TO DATE 263 281 -18 270  
SINCE DEC 1 263 281 -18 270  
SINCE JUL 1 991 1179 -188 994  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1304 1145 159 1489    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 6.4  
 
 
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 89 400 AM  
LOWEST 49 1200 PM  
AVERAGE 69  
   
......................................................
 
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 68 2015  
MINIMUM TEMPERATURE (F) 30 8 1988  
 
 
SUNRISE AND SUNSET  
DECEMBER 12 2017......SUNRISE 714 AM EST SUNSET 438 PM EST  
DECEMBER 13 2017......SUNRISE 715 AM EST SUNSET 439 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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