309  
CDUS45 KRIW 060728  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT TUE MAY 06 2025  
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 5 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 64 2016 47 MM 48  
MINIMUM MM MM 3 2010 23 MM 30  
AVERAGE MM 35 MM 39  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.28 2012 0.06 -0.06 0.24  
MONTH TO DATE 0.00 0.31 -0.31 0.59  
SINCE MAR 1 3.08 4.49 -1.41 5.92  
SINCE JAN 1 6.78 7.99 -1.21 10.39  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 30 MM 26  
MONTH TO DATE 104 154 -50 182  
SINCE MAR 1 1299 2600 -1301 2334  
SINCE JUL 1 8219 10804 -2585 9808  
 
COOLING  
YESTERDAY MM 0 MM 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 MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 63 2004  
2017  
MINIMUM TEMPERATURE (F) 23 8 1999  
 
SUNRISE AND SUNSET  
MAY 6 2025...........SUNRISE 6:05 AM MDT SUNSET 8:33 PM MDT  
MAY 7 2025...........SUNRISE 6:03 AM MDT SUNSET 8:34 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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