142  
CDUS41 KLWX 202129  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
429 PM EST MON FEB 20 2017  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR FEBRUARY 20 2017
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
...........................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 68 359 PM 76 1930 48 20  
MINIMUM 43 542 AM 5 2015 32 11  
AVERAGE 56 40 16  
 
PRECIPITATION (IN)  
TODAY 0.00 1.45 1921 0.09 -0.09  
MONTH TO DATE 0.16 1.87 -1.71  
SINCE DEC 1 5.52 7.73 -2.21  
SINCE JAN 1 2.91 4.68 -1.77  
 
SNOWFALL (IN)  
TODAY 0.0 7.6 1947 0.2 -0.2  
MONTH TO DATE T 4.4 -4.4  
SINCE JUL 1 1.4 12.8 -11.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 9 -16  
MONTH TO DATE 399 -136  
SINCE DEC 1 1810 -410  
SINCE JUL 1 2297 -618  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...........................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 7.3  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92  
LOWEST 24  
AVERAGE 58  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 75 1953  
MINIMUM TEMPERATURE (F) 32 7 1885  
 
 
SUNRISE AND SUNSET  
FEBRUARY 20 2017......SUNRISE 653 AM EST SUNSET 552 PM EST  
FEBRUARY 21 2017......SUNRISE 651 AM EST SUNSET 553 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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