043  
CDUS45 KRIW 180734  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
133 AM MDT SUN AUG 18 2019  
 
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 17 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 63 353 PM 82 2013 72 -9 75  
MINIMUM 38 325 AM 28 2009 39 -1 44  
AVERAGE 51 55 -4 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.62 2007 0.05 -0.05 0.00  
MONTH TO DATE 1.25 0.79 0.46 0.09  
SINCE JUN 1 4.07 4.26 -0.19 4.99  
SINCE JAN 1 14.24 13.34 0.90 18.61  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 10 4 5  
MONTH TO DATE 157 146 11 133  
SINCE JUN 1 998 922 76 886  
SINCE JUL 1 436 429 7 367  
 
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 14 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 3.5  
 
 
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 92 300 AM  
LOWEST 32 1200 PM  
AVERAGE 62  
   
......................................................
 
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 80 2013  
2001  
MINIMUM TEMPERATURE (F) 38 29 2015  
 
 
SUNRISE AND SUNSET  
AUGUST 18 2019........SUNRISE 628 AM MDT SUNSET 823 PM MDT  
AUGUST 19 2019........SUNRISE 629 AM MDT SUNSET 821 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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