437  
CDUS41 KLWX 172132  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
432 PM EST SUN DEC 17 2023  
   
...............................  
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 17 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 56 1:28 PM 65 2021 48 8 50  
MINIMUM 42 1:58 AM 10 1876 34 8 36  
AVERAGE 49 41 8 43  
 
PRECIPITATION (IN)  
TODAY 0.02 2.43 1888 0.11 -0.09 0.00  
MONTH TO DATE 2.68 1.96 0.72 2.41  
SINCE DEC 1 2.68 1.96 0.72 2.41  
SINCE JAN 1 31.93 40.37 -8.44 42.06  
 
SNOWFALL (IN)  
TODAY 0.0 11.5 1932 0.1 -0.1 0.0  
MONTH TO DATE 0.1 0.8 -0.7 0.0  
SINCE DEC 1 0.1 0.8 -0.7 0.0  
SINCE JUL 1 0.1 0.9 -0.8 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 16 24 -8 22  
MONTH TO DATE 331 372 -41 366  
SINCE DEC 1 331 372 -41 366  
SINCE JUL 1 920 1018 -98 979  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1710 1737 -27 1793    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 9:00 AM  
LOWEST 82 12:00 AM  
AVERAGE 90  
   
......................................................  
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 74 2006  
MINIMUM TEMPERATURE (F) 34 10 1919  
1926  
 
SUNRISE AND SUNSET  
DECEMBER 17 2023......SUNRISE 7:21 AM EST SUNSET 4:48 PM EST  
DECEMBER 18 2023......SUNRISE 7:21 AM EST SUNSET 4:48 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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