164  
CDUS45 KRIW 100802  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
102 AM MST WED JAN 10 2024  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JANUARY 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 27 4:08 PM 44 2012 29 -2 37  
MINIMUM 2 5:34 AM -7 2015 6 -4 5  
AVERAGE 15 17 -2 21  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2017 0.00 0.00 0.00  
2020  
2021  
MONTH TO DATE T 0.04 -0.04 0.02  
SINCE DEC 1 T 0.15 -0.15 0.05  
SINCE JAN 1 T 0.04 -0.04 0.02  
 
DEGREE DAYS  
HEATING  
YESTERDAY 50 48 2 44  
MONTH TO DATE 400 432 -32 422  
SINCE DEC 1 1605 1847 -242 1970  
SINCE JUL 1 3210 3624 -414 3902  
 
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 S (160)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 3:00 AM  
LOWEST 48 4:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 52 2007  
MINIMUM TEMPERATURE (F) 6 -8 2011  
 
SUNRISE AND SUNSET  
JANUARY 10 2024.......SUNRISE 7:48 AM MST SUNSET 4:52 PM MST  
JANUARY 11 2024.......SUNRISE 7:47 AM MST SUNSET 4:53 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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