330  
CDUS41 KLWX 060533  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
132 AM EDT MON MAY 6 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 5 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 66 1051 AM 88 1980 72 -6 73  
MINIMUM 58 1159 PM 29 1976 48 10 54  
AVERAGE 62 60 2 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.92 2.34 1989 0.14 0.78 0.03  
MONTH TO DATE 2.20 0.66 1.54 0.04  
SINCE MAR 1 9.57 7.51 2.06 5.38  
SINCE JAN 1 17.03 12.93 4.10 11.77  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 26.5 22.0 4.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 6 -3 1  
MONTH TO DATE 5 33 -28 5  
SINCE MAR 1 887 1015 -128 1194  
SINCE JUL 1 4392 4605 -213 4545  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 15 5 10 26  
SINCE MAR 1 37 25 12 41  
SINCE JAN 1 37 25 12 46    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 7.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 AM  
LOWEST 80 900 PM  
AVERAGE 87  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 1986  
MINIMUM TEMPERATURE (F) 48 36 1968  
 
 
SUNRISE AND SUNSET  
MAY 6 2019...........SUNRISE 606 AM EDT SUNSET 807 PM EDT  
MAY 7 2019...........SUNRISE 605 AM EDT SUNSET 808 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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