843  
CDUS41 KLWX 132128  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
428 PM EST FRI DEC 13 2024  
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 13 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 41 2:33 PM 71 1889 49 -8 53  
2015  
MINIMUM 30 6:10 AM 11 1960 35 -5 33  
AVERAGE 36 42 -6 43  
 
PRECIPITATION (IN)  
TODAY 0.00 2.43 1909 0.11 -0.11 0.00  
MONTH TO DATE 1.00 1.51 -0.51 2.66  
SINCE DEC 1 1.00 1.51 -0.51 2.66  
SINCE JAN 1 35.69 39.92 -4.23 31.91  
 
SNOWFALL (IN)  
TODAY 0.0 6.7 1966 0.1 -0.1 0.0  
MONTH TO DATE T 0.6 -0.6 0.1  
SINCE DEC 1 T 0.6 -0.6 0.1  
SINCE JUL 1 T 0.7 -0.7 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 29 23 6 22  
MONTH TO DATE 308 278 30 254  
SINCE DEC 1 308 278 30 254  
SINCE JUL 1 731 924 -193 843  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 2029 1737 292 1681    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 4.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 61 7:00 AM  
LOWEST 39 4:00 PM  
AVERAGE 50  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 70 1881  
1929  
1931  
MINIMUM TEMPERATURE (F) 35 6 1904  
 
SUNRISE AND SUNSET  
DECEMBER 13 2024......SUNRISE 7:18 AM EST SUNSET 4:47 PM EST  
DECEMBER 14 2024......SUNRISE 7:19 AM EST SUNSET 4:47 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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