655  
CDUS41 KPHI 100556  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
156 AM EDT FRI SEP 10 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR SEPTEMBER 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 75 3:57 PM 95 2016 81 -6 81  
MINIMUM 62 11:31 PM 46 1986 62 0 69  
AVERAGE 69 71 -2 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.60 2.33 2018 0.14 0.46 0.11  
MONTH TO DATE 3.29 1.21 2.08 0.49  
SINCE SEP 1 3.29 1.21 2.08 0.49  
SINCE JAN 1 29.32 31.57 -2.25 35.04  
 
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 SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 1 -1 0  
 
COOLING  
YESTERDAY 4 7 -3 10  
MONTH TO DATE 51 68 -17 83  
SINCE SEP 1 51 68 -17 83  
SINCE JAN 1 1246 1119 127 1235    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 74 12:00 AM  
AVERAGE 87  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 98 1983  
MINIMUM TEMPERATURE (F) 61 42 1938  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2021.....SUNRISE 6:39 AM EDT SUNSET 7:19 PM EDT  
SEPTEMBER 11 2021.....SUNRISE 6:40 AM EDT SUNSET 7:17 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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