466  
CDUS41 KLWX 162122  
CLIDCA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
522 PM EDT MON OCT 16 2017  
 
   
...............................
 
 
   
..THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR OCTOBER 16 2017
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
...........................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 73 1234 AM 89 1897 68 5  
1881  
MINIMUM 60 1217 PM 30 1876 50 10  
AVERAGE 67 59 8  
 
PRECIPITATION (IN)  
TODAY 0.10 1.38 2002 0.11 -0.01  
MONTH TO DATE 0.83 1.77 -0.94  
SINCE SEP 1 2.26 5.49 -3.23  
SINCE JAN 1 31.91 31.89 0.02  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0  
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 0 -6  
MONTH TO DATE 8 -67  
SINCE SEP 1 14 -85  
SINCE JUL 1 14 -85  
 
COOLING  
TODAY 2 1  
MONTH TO DATE 86 58  
SINCE SEP 1 327 97  
SINCE JAN 1 1818 277    
...........................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 13.9  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93  
LOWEST 34  
AVERAGE 64  
   
......................................................
 
 
 
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 86 1938  
1908  
MINIMUM TEMPERATURE (F) 50 33 1893  
1886  
 
 
SUNRISE AND SUNSET  
OCTOBER 16 2017.......SUNRISE 719 AM EDT SUNSET 628 PM EDT  
OCTOBER 17 2017.......SUNRISE 720 AM EDT SUNSET 626 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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