770  
CDUS41 KLWX 312123  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT WED OCT 31 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 31 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 69 322 PM 81 2004 63 6 60  
1982  
MINIMUM 37 621 AM 21 1968 39 -2 36  
AVERAGE 53 51 2 48  
 
PRECIPITATION (IN)  
TODAY 0.00 0.20 1989 0.11 -0.11 0.00  
1976  
MONTH TO DATE 2.68 3.25 -0.57 3.15  
SINCE SEP 1 10.04 7.17 2.87 4.90  
SINCE JAN 1 53.30 35.17 18.13 37.90  
 
SNOWFALL (IN)  
TODAY MM MM MM 0.0 MM  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 12 14 -2 17  
MONTH TO DATE 283 298 -15 180  
SINCE SEP 1 296 354 -58 220  
SINCE JUL 1 296 356 -60 221  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 97 19 78 64  
SINCE SEP 1 338 160 178 219  
SINCE JAN 1 1522 1176 346 1280    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 5.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 400 AM  
LOWEST 53 200 PM  
AVERAGE 77  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 84 1982  
MINIMUM TEMPERATURE (F) 39 25 1975  
 
 
SUNRISE AND SUNSET  
OCTOBER 31 2018.......SUNRISE 736 AM EDT SUNSET 610 PM EDT  
NOVEMBER 1 2018......SUNRISE 737 AM EDT SUNSET 609 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page