221  
CDUS45 KRIW 280039  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
633 PM MDT SUN MAY 27 2018  
 
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 27 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 63 MM 70 2003 55 8 52  
MINIMUM 37 400 AM 23 2011 31 6 27  
2005  
AVERAGE 50  
 
PRECIPITATION (IN)  
TODAY 0.09 0.48 2011 0.08 0.01 0.00  
MONTH TO DATE 1.93 1.91 0.02 1.06  
SINCE MAR 1 7.60 5.20 2.40 6.94  
SINCE JAN 1 13.07 8.72 4.35 17.18  
 
DEGREE DAYS  
HEATING  
TODAY 15 22 -7 25  
MONTH TO DATE 619 691 -72 708  
SINCE MAR 1 3082 3005 77 2864  
SINCE JUL 1 11061 10942 119 10922  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 2.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 400 AM  
LOWEST 47 1200 PM  
AVERAGE 70  
   
......................................................
 
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 78 2003  
MINIMUM TEMPERATURE (F) 31 27 2017  
2005  
 
 
SUNRISE AND SUNSET  
MAY 27 2018...........SUNRISE 543 AM MDT SUNSET 855 PM MDT  
MAY 28 2018...........SUNRISE 542 AM MDT SUNSET 856 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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