038  
CDUS41 KLWX 292129  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
528 PM EDT MON APR 29 2019  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 29 2019
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 61 254 PM 89 2017 71 -10 55  
MINIMUM 37 520 AM 32 1987 46 -9 36  
AVERAGE 49 58 -9 46  
 
PRECIPITATION (IN)  
TODAY 0.00 1.19 2014 0.12 -0.12 0.00  
MONTH TO DATE 2.82 3.36 -0.54 3.55  
SINCE MAR 1 7.37 6.74 0.63 5.34  
SINCE JAN 1 14.83 12.16 2.67 11.73  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2001 0.0 0.0  
MONTH TO DATE 0.0 0.3 -0.3  
SINCE JUL 1 26.5 22.0 4.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 16 7 9 19  
MONTH TO DATE 198 330 -132 396  
SINCE MAR 1 882 977 -95 1175  
SINCE JUL 1 4387 4567 -180 4526  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 19 17 2 15  
SINCE MAR 1 19 20 -1 15  
SINCE JAN 1 19 20 -1 20    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 4.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 200 AM  
LOWEST 36 1200 PM  
AVERAGE 64  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 86 2017  
2007  
1974  
MINIMUM TEMPERATURE (F) 46 29 1977  
 
 
SUNRISE AND SUNSET  
APRIL 29 2019.........SUNRISE 615 AM EDT SUNSET 800 PM EDT  
APRIL 30 2019.........SUNRISE 613 AM EDT SUNSET 801 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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