783  
CDUS45 KRIW 270735  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1235 AM MST WED DEC 27 2023  
   
...............................  
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR DECEMBER 26 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 20 4:16 PM 34 2004 23 -3 34  
2022  
MINIMUM 7 11:59 PM -18 2015 1 6 22  
AVERAGE 14 12 2 28  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.52 2021 0.09 -0.09 0.19  
MONTH TO DATE 1.17 1.95 -0.78 2.41  
SINCE DEC 1 1.17 1.95 -0.78 2.41  
SINCE JAN 1 27.27 22.69 4.58 27.19  
 
DEGREE DAYS  
HEATING  
YESTERDAY 51 53 -2 37  
MONTH TO DATE 1196 1347 -151 1375  
SINCE DEC 1 1196 1347 -151 1375  
SINCE JUL 1 4270 4854 -584 4595  
 
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 7 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 0.9  
 
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 92 3:00 AM  
LOWEST 76 2:00 PM  
AVERAGE 84  
   
......................................................  
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 23 33 2022  
MINIMUM TEMPERATURE (F) 1 -16 2008  
2009  
2015  
 
SUNRISE AND SUNSET  
DECEMBER 27 2023......SUNRISE 7:57 AM MST SUNSET 4:48 PM MST  
DECEMBER 28 2023......SUNRISE 7:58 AM MST SUNSET 4:49 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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