668  
CDUS45 KRIW 220733  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
133 AM MDT TUE AUG 22 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 21 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 101R 3:43 PM 100 2010 88 13 97  
MINIMUM 58 4:48 AM 47 2016 55 3 53  
2021  
AVERAGE 80 71 9 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2007 0.01 -0.01 0.00  
2007  
2014  
MONTH TO DATE 0.15 0.12 0.03 1.12  
SINCE JUN 1 4.82 1.36 3.46 1.31  
SINCE JAN 1 6.03 3.71 2.32 4.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 44 66 -22 65  
SINCE JUL 1 5 4 1 3  
 
COOLING  
YESTERDAY 15 7 8 10  
MONTH TO DATE 173 188 -15 245  
SINCE JUN 1 529 619 -90 759  
SINCE JAN 1 562 643 -81 765    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.1  
 
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 81 4:00 AM  
LOWEST 13 4:00 PM  
AVERAGE 47  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 98 2010  
2011  
2020  
MINIMUM TEMPERATURE (F) 54 46 2015  
 
SUNRISE AND SUNSET  
AUGUST 22 2023........SUNRISE 6:23 AM MDT SUNSET 8:06 PM MDT  
AUGUST 23 2023........SUNRISE 6:24 AM MDT SUNSET 8:05 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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