340  
CDUS45 KRIW 140734  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT FRI AUG 14 2020  
 
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 13 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 71 306 PM 83 2003 73 -2 70  
MINIMUM 43 412 AM 30 2006 39 4 32  
2002  
AVERAGE 57 56 1 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.18 2013 0.05 -0.05 0.00  
MONTH TO DATE 0.07 0.59 -0.52 1.08  
SINCE JUN 1 2.60 4.06 -1.46 3.90  
SINCE JAN 1 16.26 13.14 3.12 14.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 9 -1 14  
MONTH TO DATE 85 109 -24 108  
SINCE JUN 1 945 885 60 949  
SINCE JUL 1 401 392 9 387  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 4.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 200 AM  
LOWEST 22 200 PM  
AVERAGE 49  
   
......................................................
 
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 84 2003  
MINIMUM TEMPERATURE (F) 39 29 2005  
 
 
SUNRISE AND SUNSET  
AUGUST 14 2020........SUNRISE 624 AM MDT SUNSET 828 PM MDT  
AUGUST 15 2020........SUNRISE 625 AM MDT SUNSET 826 PM MDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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