069  
CDUS45 KRIW 150727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SUN SEP 15 2024  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 14 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 77 4:57 PM 90 2015 78 -1 77  
2020  
MINIMUM 41 6:02 AM 35 2003 46 -5 49  
2007  
2012  
AVERAGE 59 62 -3 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.60 2017 0.03 -0.03 0.00  
MONTH TO DATE 0.22 0.33 -0.11 0.88  
SINCE SEP 1 0.22 0.33 -0.11 0.88  
SINCE JAN 1 5.53 4.15 1.38 6.96  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 5 1 2  
MONTH TO DATE 18 44 -26 8  
SINCE SEP 1 18 44 -26 8  
SINCE JUL 1 31 63 -32 13  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 64 37 27 45  
SINCE SEP 1 64 37 27 45  
SINCE JAN 1 805 733 72 697    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 3.7  
 
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 89 7:00 AM  
LOWEST 17 5:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 96 2000  
MINIMUM TEMPERATURE (F) 45 35 2003  
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2024.....SUNRISE 6:52 AM MDT SUNSET 7:22 PM MDT  
SEPTEMBER 16 2024.....SUNRISE 6:53 AM MDT SUNSET 7:20 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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