311  
CDUS41 KPHI 220557  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
157 AM EDT WED SEP 22 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR SEPTEMBER 21 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 80 3:46 PM 97 1895 77 3 66  
MINIMUM 61 3:17 AM 37 1956 58 3 42  
AVERAGE 71 67 4 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.76 1983 0.15 -0.15 0.00  
MONTH TO DATE 3.32 3.02 0.30 0.82  
SINCE SEP 1 3.32 3.02 0.30 0.82  
SINCE JAN 1 29.35 33.38 -4.03 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 2 -2 11  
MONTH TO DATE 0 12 -12 43  
SINCE SEP 1 0 12 -12 43  
SINCE JUL 1 0 13 -13 43  
 
COOLING  
YESTERDAY 6 4 2 0  
MONTH TO DATE 153 128 25 117  
SINCE SEP 1 153 128 25 117  
SINCE JAN 1 1348 1179 169 1269    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 11:00 PM  
LOWEST 58 1:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 99 1895  
MINIMUM TEMPERATURE (F) 57 40 1962  
2020  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2021.....SUNRISE 6:50 AM EDT SUNSET 6:59 PM EDT  
SEPTEMBER 23 2021.....SUNRISE 6:51 AM EDT SUNSET 6:57 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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