097  
CDUS45 KRIW 250726  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT WED SEP 25 2024  
   
...............................
 
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR SEPTEMBER 24 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 68 5:04 PM 74 2009 57 11 57  
2011  
MINIMUM 29 6:18 AM 13 2000 28 1 27  
AVERAGE 49 42 7 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.65 2005 0.06 -0.06 0.00  
MONTH TO DATE 1.43 1.24 0.19 3.62  
SINCE SEP 1 1.43 1.24 0.19 3.62  
SINCE JAN 1 16.62 16.50 0.12 21.65  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 22 -6 23  
MONTH TO DATE 387 445 -58 380  
SINCE SEP 1 387 445 -58 380  
SINCE JUL 1 964 1087 -123 913  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 1.3  
 
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 2:00 AM  
LOWEST 40 3:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 74 2015  
MINIMUM TEMPERATURE (F) 28 20 2000  
2018  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2024.....SUNRISE 7:13 AM MDT SUNSET 7:12 PM MDT  
SEPTEMBER 26 2024.....SUNRISE 7:14 AM MDT SUNSET 7:10 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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