981  
CDUS41 KLWX 160530  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1230 AM EST MON DEC 16 2024  
   
...............................  
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR DECEMBER 15 2024  
 
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)  
YESTERDAY  
MAXIMUM 43 3:30 PM 71 1971 49 -6 61  
MINIMUM 33 7:42 AM 6 1904 35 -2 33  
AVERAGE 38 42 -4 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.26 2.55 2018 0.11 0.15 0.00  
MONTH TO DATE 1.26 1.74 -0.48 2.66  
SINCE DEC 1 1.26 1.74 -0.48 2.66  
SINCE JAN 1 35.95 40.15 -4.20 31.91  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.5 1905 0.1 -0.1 0.0  
MONTH TO DATE T 0.7 -0.7 0.1  
SINCE DEC 1 T 0.7 -0.7 0.1  
SINCE JUL 1 T 0.8 -0.8 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 23 4 18  
MONTH TO DATE 363 324 39 298  
SINCE DEC 1 363 324 39 298  
SINCE JUL 1 786 970 -184 887  
 
COOLING  
YESTERDAY 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 13 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 9:00 PM  
LOWEST 60 12:00 PM  
AVERAGE 75  
   
......................................................  
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 74 1971  
MINIMUM TEMPERATURE (F) 34 10 1917  
 
SUNRISE AND SUNSET  
DECEMBER 16 2024......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST  
DECEMBER 17 2024......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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