691  
CDUS41 KLWX 130523  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT TUE APR 13 2021  
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR APRIL 12 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1871 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 64 12:53 AM 90 1977 66 -2 74  
MINIMUM 50 11:03 PM 24 1874 46 4 46  
AVERAGE 57 56 1 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 1.99 1913 0.10 -0.02 0.21  
MONTH TO DATE 1.02 1.29 -0.27 0.75  
SINCE MAR 1 4.82 4.77 0.05 3.06  
SINCE JAN 1 11.41 10.20 1.21 9.06  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.0 1918 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.0 1.3 -1.3 0.0  
SINCE JUL 1 5.4 15.4 -10.0 0.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 10 -2 5  
MONTH TO DATE 96 138 -42 92  
SINCE MAR 1 526 706 -180 459  
SINCE JUL 1 3280 3814 -534 3105  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 9 3 6 2  
SINCE MAR 1 16 5 11 7  
SINCE JAN 1 16 5 11 7    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 9.2  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 5:00 AM  
LOWEST 63 12:00 AM  
AVERAGE 76  
   
......................................................
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 90 1977  
MINIMUM TEMPERATURE (F) 46 26 1874  
 
SUNRISE AND SUNSET  
APRIL 13 2021.........SUNRISE 6:34 AM EDT SUNSET 7:44 PM EDT  
APRIL 14 2021.........SUNRISE 6:33 AM EDT SUNSET 7:44 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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