233  
CDUS45 KRIW 280749  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1249 AM MST SAT DEC 28 2024  
   
...............................  
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR DECEMBER 27 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 24 10:53 PM 33 2022 23 1 22  
MINIMUM 18 5:43 AM -16 2008 1 17 -1  
2009  
2015  
AVERAGE 21 12 9 11  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.60 2022 0.08 -0.04 0.00  
MONTH TO DATE 0.84 2.03 -1.19 1.17  
SINCE DEC 1 0.84 2.03 -1.19 1.17  
SINCE JAN 1 19.22 22.77 -3.55 27.27  
 
DEGREE DAYS  
HEATING  
YESTERDAY 44 53 -9 54  
MONTH TO DATE 1194 1400 -206 1250  
SINCE DEC 1 1194 1400 -206 1250  
SINCE JUL 1 4301 4907 -606 4324  
 
COOLING  
YESTERDAY 0 0 0 0  
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 12 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 2.7  
 
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 88 12:00 PM  
LOWEST 77 4:00 PM  
AVERAGE 83  
   
......................................................  
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 23 33 2002  
2005  
MINIMUM TEMPERATURE (F) 1 -17 2009  
 
SUNRISE AND SUNSET  
DECEMBER 28 2024......SUNRISE 7:58 AM MST SUNSET 4:49 PM MST  
DECEMBER 29 2024......SUNRISE 7:58 AM MST SUNSET 4:50 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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