242  
CDUS45 KRIW 240730  
CLIP60  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT TUE SEP 24 2024  
   
...............................  
 
   
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR SEPTEMBER 23 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 61 3:35 PM 73 2011 57 4 46  
MINIMUM 29 6:42 AM 18 2000 29 0 29  
AVERAGE 45 43 2 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.37 2016 0.05 -0.05 0.00  
MONTH TO DATE 1.43 1.18 0.25 3.62  
SINCE SEP 1 1.43 1.18 0.25 3.62  
SINCE JAN 1 16.62 16.44 0.18 21.65  
 
DEGREE DAYS  
HEATING  
YESTERDAY 20 22 -2 27  
MONTH TO DATE 371 423 -52 357  
SINCE SEP 1 371 423 -52 357  
SINCE JUL 1 948 1065 -117 890  
 
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 12 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 2.4  
 
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 36 1:00 PM  
AVERAGE 64  
   
......................................................  
 
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 74 2009  
2011  
MINIMUM TEMPERATURE (F) 28 13 2000  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2024.....SUNRISE 7:12 AM MDT SUNSET 7:14 PM MDT  
SEPTEMBER 25 2024.....SUNRISE 7:13 AM MDT SUNSET 7:12 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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