921  
CDUS45 KRIW 200730  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT MON MAY 20 2024  
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 19 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 70 2002 52 MM 61  
MINIMUM MM MM 15 2003 28 MM 26  
AVERAGE MM 40 MM 44  
 
PRECIPITATION (IN)  
YESTERDAY MM 0.38 2005 0.08 MM 0.00  
MONTH TO DATE 1.08 1.31 -0.23 0.95  
SINCE MAR 1 6.41 5.49 0.92 6.88  
SINCE JAN 1 10.88 8.99 1.89 10.09  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 25 MM 21  
MONTH TO DATE 456 539 -83 472  
SINCE MAR 1 2608 2985 -377 3263  
SINCE JUL 1 10082 11189 -1107 11236  
 
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) 52 66 2002  
MINIMUM TEMPERATURE (F) 28 17 2003  
 
SUNRISE AND SUNSET  
MAY 20 2024...........SUNRISE 5:48 AM MDT SUNSET 8:49 PM MDT  
MAY 21 2024...........SUNRISE 5:47 AM MDT SUNSET 8:50 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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