733  
CDUS41 KLWX 310535  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1235 AM EST SUN DEC 31 2023  
   
...............................  
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 30 2023  
 
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)  
YESTERDAY  
MAXIMUM 50 4:08 PM 70 1990 46 4 65  
MINIMUM 37 7:38 AM -7 1880 32 5 32  
AVERAGE 44 39 5 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.81 1877 0.10 -0.10 0.00  
MONTH TO DATE 6.43 3.32 3.11 3.68  
SINCE DEC 1 6.43 3.32 3.11 3.68  
SINCE JAN 1 35.68 41.73 -6.05 43.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.3 1935 0.1 -0.1 0.0  
MONTH TO DATE 0.1 1.6 -1.5 T  
SINCE DEC 1 0.1 1.6 -1.5 T  
SINCE JUL 1 0.1 1.7 -1.6 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 26 -5 16  
MONTH TO DATE 578 698 -120 750  
SINCE DEC 1 578 698 -120 750  
SINCE JUL 1 1167 1344 -177 1363  
 
COOLING  
YESTERDAY 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 21 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 6:00 AM  
LOWEST 46 4:00 PM  
AVERAGE 58  
   
......................................................  
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 70 1965  
MINIMUM TEMPERATURE (F) 32 -13 1880  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:26 AM EST SUNSET 4:56 PM EST  
JANUARY 1 2024.......SUNRISE 7:27 AM EST SUNSET 4:57 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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