960  
CDUS41 KPHI 200550  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
150 AM EDT MON SEP 20 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR SEPTEMBER 19 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 82 3:36 PM 94 1983 78 4 66  
MINIMUM 60 11:56 PM 40 1929 58 2 45  
AVERAGE 71 68 3 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.33 1960 0.15 -0.15 0.00  
MONTH TO DATE 3.32 2.71 0.61 0.82  
SINCE SEP 1 3.32 2.71 0.61 0.82  
SINCE JAN 1 29.35 33.07 -3.72 35.37  
 
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 1 -1 9  
MONTH TO DATE 0 8 -8 21  
SINCE SEP 1 0 8 -8 21  
SINCE JUL 1 0 9 -9 21  
 
COOLING  
YESTERDAY 6 4 2 0  
MONTH TO DATE 145 120 25 117  
SINCE SEP 1 145 120 25 117  
SINCE JAN 1 1340 1171 169 1269    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 3:00 AM  
LOWEST 33 2:00 PM  
AVERAGE 60  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 93 1983  
MINIMUM TEMPERATURE (F) 58 40 1920  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2021.....SUNRISE 6:48 AM EDT SUNSET 7:02 PM EDT  
SEPTEMBER 21 2021.....SUNRISE 6:49 AM EDT SUNSET 7:01 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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