551  
CDUS41 KLWX 210537  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
129 AM EDT SAT APR 21 2018  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR APRIL 20 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 61 424 PM 94 1941 68 -7 82  
MINIMUM 38 539 AM 28 1904 48 -10 57  
AVERAGE 50 58 -8 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.71 1940 0.10 -0.10 0.11  
MONTH TO DATE 2.09 2.04 0.05 1.87  
SINCE MAR 1 4.01 5.52 -1.51 5.06  
SINCE JAN 1 9.74 10.95 -1.21 8.49  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1983 0.0 0.0  
1953  
MONTH TO DATE T 0.0 0.0  
SINCE JUL 1 7.8 15.4 -7.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 8 7 0  
MONTH TO DATE 248 207 41 88  
SINCE MAR 1 905 775 130 636  
SINCE JUL 1 3695 3883 -188 3012  
 
COOLING  
YESTERDAY 0 1 -1 5  
MONTH TO DATE 17 11 6 42  
SINCE MAR 1 17 13 4 47  
SINCE JAN 1 21 13 8 48    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 12.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 48 300 AM  
LOWEST 26 600 PM  
AVERAGE 37  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 89 1976  
1957  
MINIMUM TEMPERATURE (F) 49 31 1875  
 
 
SUNRISE AND SUNSET  
APRIL 21 2018.........SUNRISE 623 AM EDT SUNSET 751 PM EDT  
APRIL 22 2018.........SUNRISE 622 AM EDT SUNSET 752 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page