242  
CDUS41 KPHI 172133  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
533 PM EDT FRI SEP 17 2021  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR SEPTEMBER 17 2021
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 81 1:30 PM 92 1991 78 3 75  
MINIMUM 72 6:55 AM 43 1986 59 13 61  
AVERAGE 77 69 8 68  
 
PRECIPITATION (IN)  
TODAY 0.59 1.85 1993 0.16 0.43 0.04  
MONTH TO DATE 3.91 2.40 1.51 0.82  
SINCE SEP 1 3.91 2.40 1.51 0.82  
SINCE JAN 1 29.94 32.76 -2.82 35.37  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 1 -1 0  
MONTH TO DATE 0 6 -6 11  
SINCE SEP 1 0 6 -6 11  
SINCE JUL 1 0 7 -7 11  
 
COOLING  
TODAY 12 5 7 3  
MONTH TO DATE 129 112 17 117  
SINCE SEP 1 129 112 17 117  
SINCE JAN 1 1324 1163 161 1269    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 7:00 AM  
LOWEST 71 2:00 PM  
AVERAGE 83  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 89 1941  
2016  
MINIMUM TEMPERATURE (F) 59 40 1959  
1990  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2021.....SUNRISE 6:46 AM EDT SUNSET 7:07 PM EDT  
SEPTEMBER 18 2021.....SUNRISE 6:47 AM EDT SUNSET 7:06 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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