960  
CDUS45 KRIW 220727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SUN SEP 22 2024  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 21 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 67 4:29 PM 86 2013 74 -7 72  
2015  
MINIMUM 44 11:56 PM 32 1999 43 1 49  
2000  
2021  
AVERAGE 56 58 -2 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.15 2006 0.03 -0.03 0.08  
2006  
2019  
MONTH TO DATE 0.38 0.54 -0.16 0.99  
SINCE SEP 1 0.38 0.54 -0.16 0.99  
SINCE JAN 1 5.69 4.36 1.33 7.07  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 7 2 4  
MONTH TO DATE 42 86 -44 16  
SINCE SEP 1 42 86 -44 16  
SINCE JUL 1 55 105 -50 21  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 69 44 25 50  
SINCE SEP 1 69 44 25 50  
SINCE JAN 1 810 740 70 702    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 63 11:00 PM  
LOWEST 23 4:00 PM  
AVERAGE 43  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 2007  
MINIMUM TEMPERATURE (F) 43 30 2002  
2003  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2024.....SUNRISE 7:00 AM MDT SUNSET 7:08 PM MDT  
SEPTEMBER 23 2024.....SUNRISE 7:01 AM MDT SUNSET 7:07 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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