816  
CDUS41 KPHI 100555  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
155 AM EDT MON MAY 10 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR MAY 9 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 57 6:42 PM 94 1896 72 -15 49  
MINIMUM 40 1:24 AM 32 1947 51 -11 33  
AVERAGE 49 62 -13 41  
 
PRECIPITATION (IN)  
YESTERDAY T 1.94 2008 0.11 -0.11 0.00  
MONTH TO DATE 0.40 0.99 -0.59 0.70  
SINCE MAR 1 7.56 8.66 -1.10 8.39  
SINCE JAN 1 13.91 14.72 -0.81 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 16 5 11 24  
MONTH TO DATE 61 52 9 89  
SINCE MAR 1 944 1075 -131 984  
SINCE JUL 1 4258 4563 -305 4123  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 18 9 9 2  
SINCE MAR 1 35 22 13 3  
SINCE JAN 1 35 22 13 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 1:00 AM  
LOWEST 53 3:00 PM  
AVERAGE 68  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 98 1895  
MINIMUM TEMPERATURE (F) 52 33 1947  
1966  
 
SUNRISE AND SUNSET  
MAY 10 2021...........SUNRISE 5:53 AM EDT SUNSET 8:06 PM EDT  
MAY 11 2021...........SUNRISE 5:52 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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