865  
CDUS45 KRIW 210726  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT SAT OCT 21 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR OCTOBER 20 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 77R 4:19 PM 77 2014 58 19 76  
2017  
MINIMUM 34 6:51 AM 21 1999 32 2 28  
AVERAGE 56 45 11 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.47 2007 0.02 -0.02 0.00  
MONTH TO DATE 0.28 0.49 -0.21 0.09  
SINCE SEP 1 1.86 1.32 0.54 1.25  
SINCE JAN 1 7.94 5.14 2.80 5.49  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 20 -11 13  
MONTH TO DATE 239 318 -79 258  
SINCE SEP 1 308 487 -179 335  
SINCE JUL 1 313 506 -193 338  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 50 46 4 96  
SINCE JAN 1 702 742 -40 943    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (100)  
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 82 6:00 AM  
LOWEST 21 3:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 83 2003  
MINIMUM TEMPERATURE (F) 31 23 1998  
 
SUNRISE AND SUNSET  
OCTOBER 21 2023.......SUNRISE 7:35 AM MDT SUNSET 6:18 PM MDT  
OCTOBER 22 2023.......SUNRISE 7:36 AM MDT SUNSET 6:17 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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