339  
CDUS45 KRIW 280743  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT FRI APR 28 2017  
 
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR APRIL 27 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 34 152 PM 57 2004 46 -12 39  
MINIMUM 25 1159 PM 3 2011 23 2 27  
AVERAGE 30 34 -4 33  
 
PRECIPITATION (IN)  
YESTERDAY 0.19 0.49 2010 0.08 0.11 0.00  
MONTH TO DATE 3.37 1.85 1.52 1.33  
SINCE MAR 1 5.86 3.06 2.80 3.58  
SINCE JAN 1 16.10 6.58 9.52 6.23  
 
DEGREE DAYS  
HEATING  
YESTERDAY 35 30 5 32  
MONTH TO DATE 942 923 19 808  
SINCE MAR 1 2044 2225 -181 2117  
SINCE JUL 1 10102 10162 -60 9901  
 
COOLING  
YESTERDAY 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 15 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 5.4  
 
 
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 100 200 AM  
LOWEST 63 200 PM  
AVERAGE 82  
   
......................................................
 
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 62 2007  
MINIMUM TEMPERATURE (F) 23 15 2014  
2005  
 
 
SUNRISE AND SUNSET  
APRIL 28 2017.........SUNRISE 616 AM MDT SUNSET 823 PM MDT  
APRIL 29 2017.........SUNRISE 614 AM MDT SUNSET 824 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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