242  
CDUS45 KRIW 100733  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1233 AM MST TUE DEC 10 2024  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 9 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 35 1:19 PM 52 2020 32 3 37  
MINIMUM 26 9:37 PM -24 2009 9 17 20  
AVERAGE 31 20 11 29  
 
PRECIPITATION (IN)  
YESTERDAY T R T 2015 0.00 0.00 T  
2019  
2023  
MONTH TO DATE T 0.03 -0.03 T  
SINCE DEC 1 T 0.03 -0.03 T  
SINCE JAN 1 6.28 5.47 0.81 8.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 44 -10 36  
MONTH TO DATE 305 388 -83 329  
SINCE DEC 1 305 388 -83 329  
SINCE JUL 1 1700 2165 -465 1934  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 832 744 88 702    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 11:00 PM  
LOWEST 49 1:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 53 2003  
MINIMUM TEMPERATURE (F) 9 -22 2009  
 
SUNRISE AND SUNSET  
DECEMBER 10 2024......SUNRISE 7:38 AM MST SUNSET 4:32 PM MST  
DECEMBER 11 2024......SUNRISE 7:39 AM MST SUNSET 4:32 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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