674  
CDUS41 KRNK 210757  
CLIROA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BLACKSBURG VA  
355 AM EDT MON MAY 21 2018  
 
   
...............................
 
 
   
..THE ROANOKE VA CLIMATE SUMMARY FOR MAY 20 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1912 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 430 PM 98 1934 77 11 87  
MINIMUM 66 529 AM 34 2002 55 11 66  
AVERAGE 77 66 11 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.65 1913 0.13 -0.13 0.97  
MONTH TO DATE 7.29 2.47 4.82 4.74  
SINCE MAR 1 14.70 9.30 5.40 12.98  
SINCE JAN 1 20.82 15.11 5.71 17.62  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T  
MONTH TO DATE 0.0 T  
SINCE MAR 1 10.6 0.1  
SINCE JUL 1 15.7 4.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 3 81 -78 75  
SINCE MAR 1 985 908 77 732  
SINCE JUL 1 3985 4113 -128 3196  
 
COOLING  
YESTERDAY 12 3 9 12  
MONTH TO DATE 137 43 94 66  
SINCE MAR 1 145 72 73 136  
SINCE JAN 1 149 72 77 136    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 5.4  
 
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 39 400 PM  
AVERAGE 66  
   
......................................................
 
 
 
THE ROANOKE VA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 97 1941  
MINIMUM TEMPERATURE (F) 55 38 1993  
 
 
SUNRISE AND SUNSET  
MAY 21 2018...........SUNRISE 607 AM EDT SUNSET 827 PM EDT  
MAY 22 2018...........SUNRISE 606 AM EDT SUNSET 828 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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