918  
CDUS45 KRIW 270734  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1232 AM MST THU FEB 27 2020  
 
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR FEBRUARY 26 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 26 258 PM 43 2016 31 -5 MM  
MINIMUM -10 1245 AM -33 2002 4 -14 MM  
AVERAGE 8 18 -10 MM  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.33 2009 0.05 -0.02 MM  
MONTH TO DATE 2.36 1.30 1.06 1.90  
SINCE DEC 1 6.52 4.91 1.61 5.54  
SINCE JAN 1 5.17 3.41 1.76 4.17  
 
DEGREE DAYS  
HEATING  
YESTERDAY 57 47 10 MM  
MONTH TO DATE 1444 1310 134 1337  
SINCE DEC 1 4532 4521 11 4557  
SINCE JUL 1 8245 7841 404 8064  
 
COOLING  
YESTERDAY 0 0 0 MM  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 2.0  
 
 
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 96 700 AM  
LOWEST 60 1200 PM  
AVERAGE 78  
   
......................................................
 
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 42 2014  
MINIMUM TEMPERATURE (F) 5 -13 2015  
 
 
SUNRISE AND SUNSET  
FEBRUARY 27 2020......SUNRISE 703 AM MST SUNSET 606 PM MST  
FEBRUARY 28 2020......SUNRISE 701 AM MST SUNSET 608 PM MST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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