476  
CDUS41 KPHI 110552  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
152 AM EDT TUE MAY 11 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR MAY 10 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 64 5:07 PM 98 1895 72 -8 63  
MINIMUM 49 11:59 PM 33 1947 52 -3 35  
1966  
AVERAGE 57 62 -5 49  
 
PRECIPITATION (IN)  
YESTERDAY T 1.78 1907 0.12 -0.12 0.00  
MONTH TO DATE 0.40 1.11 -0.71 0.70  
SINCE MAR 1 7.56 8.78 -1.22 8.39  
SINCE JAN 1 13.91 14.84 -0.93 15.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 1894 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 T 3.2 -3.2 T  
SINCE JUL 1 14.3 20.2 -5.9 0.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 5 3 16  
MONTH TO DATE 69 57 12 105  
SINCE MAR 1 952 1080 -128 1000  
SINCE JUL 1 4266 4568 -302 4139  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 18 11 7 2  
SINCE MAR 1 35 24 11 3  
SINCE JAN 1 35 24 11 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 2:00 AM  
LOWEST 43 5:00 PM  
AVERAGE 65  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 96 1896  
MINIMUM TEMPERATURE (F) 52 32 1966  
 
SUNRISE AND SUNSET  
MAY 11 2021...........SUNRISE 5:52 AM EDT SUNSET 8:07 PM EDT  
MAY 12 2021...........SUNRISE 5:51 AM EDT SUNSET 8:07 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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