470  
CDUS45 KRIW 120730  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT THU SEP 12 2024  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 11 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 87 4:24 PM 91 2017 79 8 79  
MINIMUM 56 5:06 AM 34 2014 47 9 47  
AVERAGE 72 63 9 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2000 0.02 -0.02 0.00  
2005  
2021  
MONTH TO DATE 0.03 0.24 -0.21 0.87  
SINCE SEP 1 0.03 0.24 -0.21 0.87  
SINCE JAN 1 5.34 4.06 1.28 6.95  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 2  
MONTH TO DATE 0 31 -31 6  
SINCE SEP 1 0 31 -31 6  
SINCE JUL 1 13 50 -37 11  
 
COOLING  
YESTERDAY 7 2 5 0  
MONTH TO DATE 64 32 32 42  
SINCE SEP 1 64 32 32 42  
SINCE JAN 1 805 728 77 694    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 49 6:00 AM  
LOWEST 17 3:00 PM  
AVERAGE 33  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 2017  
MINIMUM TEMPERATURE (F) 46 30 2014  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2024.....SUNRISE 6:48 AM MDT SUNSET 7:27 PM MDT  
SEPTEMBER 13 2024.....SUNRISE 6:50 AM MDT SUNSET 7:25 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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