453  
CDUS45 KRIW 220734  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
134 AM MDT THU JUN 22 2023  
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JUNE 21 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 58 2:38 PM 75 2007 63 -5 59  
2008  
2021  
MINIMUM 27 4:52 AM 26 2019 34 -7 27  
AVERAGE 43 49 -6 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.24 2009 0.07 -0.07 0.00  
MONTH TO DATE 2.37 1.85 0.52 3.41  
SINCE JUN 1 2.37 1.85 0.52 3.41  
SINCE JAN 1 12.71 11.88 0.83 15.03  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 16 6 22  
MONTH TO DATE 376 406 -30 400  
SINCE JUN 1 376 406 -30 400  
SINCE JUL 1 11839 11879 -40 11460  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.1  
 
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 7:00 AM  
LOWEST 37 4:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 79 2021  
MINIMUM TEMPERATURE (F) 34 23 2019  
 
SUNRISE AND SUNSET  
JUNE 22 2023..........SUNRISE 5:37 AM MDT SUNSET 9:10 PM MDT  
JUNE 23 2023..........SUNRISE 5:37 AM MDT SUNSET 9:11 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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