901  
CDUS41 KRNK 140910  
CLIROA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BLACKSBURG VA  
401 AM EST THU DEC 14 2017  
 
   
...............................
 
 
   
..THE ROANOKE VA CLIMATE SUMMARY FOR DECEMBER 13 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1912 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 41 1159 PM 79 1927 48 -7 50  
MINIMUM 21 731 AM -4 1917 30 -9 37  
AVERAGE 31 39 -8 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.84 1935 0.10 -0.10 T  
MONTH TO DATE 0.15 1.35 -1.20 1.99  
SINCE DEC 1 0.15 1.35 -1.20 1.99  
SINCE JAN 1 37.31 39.66 -2.35 46.01  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0  
MONTH TO DATE 1.5 0.0  
SINCE DEC 1 1.5 0.0  
SINCE JUL 1 1.5 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 26 8 21  
MONTH TO DATE 304 314 -10 311  
SINCE DEC 1 304 314 -10 311  
SINCE JUL 1 1039 1118 -79 839  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1414 1208 206 1563    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 12.1  
 
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 300 AM  
LOWEST 29 1000 AM  
AVERAGE 42  
   
......................................................
 
 
 
THE ROANOKE VA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 73 1927  
MINIMUM TEMPERATURE (F) 30 10 2010  
 
 
SUNRISE AND SUNSET  
DECEMBER 14 2017......SUNRISE 726 AM EST SUNSET 503 PM EST  
DECEMBER 15 2017......SUNRISE 727 AM EST SUNSET 503 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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