953  
CDUS45 KRIW 110734  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
134 AM MDT SUN JUN 11 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JUNE 10 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 66 10:42 AM 99 2016 79 -13 88  
MINIMUM 57 11:59 PM 41 2005 52 5 53  
2019  
AVERAGE 62 65 -3 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.24 0.26 2010 0.05 0.19 0.00  
MONTH TO DATE 1.14 0.52 0.62 0.03  
SINCE JUN 1 1.14 0.52 0.62 0.03  
SINCE JAN 1 2.35 2.87 -0.52 2.79  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 3 0 0  
MONTH TO DATE 7 36 -29 26  
SINCE JUN 1 7 36 -29 26  
SINCE JUL 1 7699 7521 178 7248  
 
COOLING  
YESTERDAY 0 3 -3 6  
MONTH TO DATE 37 25 12 16  
SINCE JUN 1 37 25 12 16  
SINCE JAN 1 70 49 21 22    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 11:00 PM  
LOWEST 73 12:00 AM  
AVERAGE 83  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 90 2016  
MINIMUM TEMPERATURE (F) 52 36 2008  
 
SUNRISE AND SUNSET  
JUNE 11 2023..........SUNRISE 5:27 AM MDT SUNSET 8:57 PM MDT  
JUNE 12 2023..........SUNRISE 5:27 AM MDT SUNSET 8:57 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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