839  
CDUS41 KLWX 160625  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
225 AM EDT WED SEP 16 2026  
   
...............................
 
 
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 15 2026...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 4:06 PM 97 1927 81 -3 82  
1930  
MINIMUM 58 4:46 AM 43 1899 65 -7 66  
1902  
AVERAGE 68 73 -5 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.52 1904 0.14 -0.14 0.00  
MONTH TO DATE 2.28 1.95 0.33 2.50  
SINCE SEP 1 2.28 1.95 0.33 2.50  
SINCE JAN 1 23.84 29.86 -6.02 29.76  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 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 0 0 0  
 
COOLING  
YESTERDAY 3 8 -5 9  
MONTH TO DATE 200 152 48 108  
SINCE SEP 1 200 152 48 108  
SINCE JAN 1 1809 1604 205 1573    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 4:00 AM  
LOWEST 40 12:00 PM  
AVERAGE 55  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 96 1991  
MINIMUM TEMPERATURE (F) 64 44 1902  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2026.....SUNRISE 6:50 AM EDT SUNSET 7:15 PM EDT  
SEPTEMBER 17 2026.....SUNRISE 6:51 AM EDT SUNSET 7:13 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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