419  
CDUS45 KRIW 170729  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT TUE SEP 17 2024  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 16 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 89 4:28 PM 96 2000 77 12 83  
MINIMUM 50 5:53 AM 38 1999 45 5 44  
2005  
AVERAGE 70 61 9 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.25 2006 0.02 -0.02 0.00  
MONTH TO DATE 0.22 0.38 -0.16 0.88  
SINCE SEP 1 0.22 0.38 -0.16 0.88  
SINCE JAN 1 5.53 4.20 1.33 6.96  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 1  
MONTH TO DATE 19 54 -35 11  
SINCE SEP 1 19 54 -35 11  
SINCE JUL 1 32 73 -41 16  
 
COOLING  
YESTERDAY 5 1 4 0  
MONTH TO DATE 69 39 30 45  
SINCE SEP 1 69 39 30 45  
SINCE JAN 1 810 735 75 697    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 68 6:00 AM  
LOWEST 11 4:00 PM  
AVERAGE 40  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 89 2004  
MINIMUM TEMPERATURE (F) 45 34 2003  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2024.....SUNRISE 6:54 AM MDT SUNSET 7:18 PM MDT  
SEPTEMBER 18 2024.....SUNRISE 6:55 AM MDT SUNSET 7:16 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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