642  
CDUS41 KLWX 202128  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
428 PM EST FRI DEC 20 2024  
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 20 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 40 3:59 PM 66 1877 48 -8 49  
1889  
MINIMUM 39 1:42 PM 5 1942 34 5 29  
AVERAGE 40 41 -1 39  
 
PRECIPITATION (IN)  
TODAY 0.02 1.56 1957 0.10 -0.08 0.00  
MONTH TO DATE 1.80 2.29 -0.49 5.07  
SINCE DEC 1 1.80 2.29 -0.49 5.07  
SINCE JAN 1 36.49 40.70 -4.21 34.32  
 
SNOWFALL (IN)  
TODAY T 5.0 1892 0.0 0.0 0.0  
MONTH TO DATE T 0.9 -0.9 0.1  
SINCE DEC 1 T 0.9 -0.9 0.1  
SINCE JUL 1 T 1.0 -1.0 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 25 24 1 26  
MONTH TO DATE 455 444 11 400  
SINCE DEC 1 455 444 11 400  
SINCE JUL 1 878 1090 -212 989  
 
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 10 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
LIGHT SNOW  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 2:00 PM  
LOWEST 64 6:00 AM  
AVERAGE 74  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 72 2013  
MINIMUM TEMPERATURE (F) 34 4 1942  
 
SUNRISE AND SUNSET  
DECEMBER 20 2024......SUNRISE 7:23 AM EST SUNSET 4:49 PM EST  
DECEMBER 21 2024......SUNRISE 7:23 AM EST SUNSET 4:50 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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