003  
CDUS41 KLWX 140523  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
121 AM EDT THU JUN 14 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 13 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 525 PM 95 2017 83 0 95  
MINIMUM 65 128 AM 43 1980 61 4 68  
AVERAGE 74 72 2 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.03 1982 0.14 -0.13 0.00  
MONTH TO DATE 2.98 1.79 1.19 0.18  
SINCE JUN 1 2.98 1.79 1.19 0.18  
SINCE JAN 1 23.63 18.61 5.02 19.27  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 11.9 22.0 -10.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 5 13 -8 6  
SINCE JUN 1 5 13 -8 6  
SINCE JUL 1 4566 4715 -149 3858  
 
COOLING  
YESTERDAY 9 7 2 17  
MONTH TO DATE 70 78 -8 75  
SINCE JUN 1 70 78 -8 75  
SINCE JAN 1 262 170 92 212    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 8.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 1000 PM  
LOWEST 69 1200 PM  
AVERAGE 82  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 98 1994  
MINIMUM TEMPERATURE (F) 61 41 1979  
 
 
SUNRISE AND SUNSET  
JUNE 14 2018..........SUNRISE 544 AM EDT SUNSET 837 PM EDT  
JUNE 15 2018..........SUNRISE 544 AM EDT SUNSET 837 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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