138  
CDUS41 KLWX 220523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT FRI MAR 22 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 21 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 46 1216 AM 78 2010 57 -11 34  
MINIMUM 40 1127 PM 14 1965 34 6 30  
AVERAGE 43 46 -3 32  
 
PRECIPITATION (IN)  
YESTERDAY 2.69R 1.29 2000 0.12 2.57 0.49  
MONTH TO DATE 4.49 2.16 2.33 1.51  
SINCE MAR 1 4.49 2.16 2.33 1.51  
SINCE JAN 1 11.95 7.58 4.37 7.90  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.8 2018 0.1 -0.1  
MONTH TO DATE 1.6 2.3 -0.7  
SINCE JUL 1 26.5 21.2 5.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 19 3 33  
MONTH TO DATE 510 474 36 564  
SINCE MAR 1 510 474 36 564  
SINCE JUL 1 4015 4064 -49 3915  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 5    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 12.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1200 PM  
LOWEST 58 1200 AM  
AVERAGE 77  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 83 1968  
MINIMUM TEMPERATURE (F) 35 12 1988  
 
 
SUNRISE AND SUNSET  
MARCH 22 2019.........SUNRISE 710 AM EDT SUNSET 724 PM EDT  
MARCH 23 2019.........SUNRISE 709 AM EDT SUNSET 725 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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