786  
CDUS45 KRIW 090727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SAT SEP 09 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 8 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 86 4:26 PM 93 2005 81 5 85  
MINIMUM 51 6:06 AM 34 2008 48 3 54  
AVERAGE 69 64 5 70  
 
PRECIPITATION (IN)  
YESTERDAY T 0.68 2022 0.03 -0.03 0.68  
MONTH TO DATE 0.87 0.17 0.70 0.68  
SINCE SEP 1 0.87 0.17 0.70 0.68  
SINCE JAN 1 6.95 3.99 2.96 4.92  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 4 20 -16 0  
SINCE SEP 1 4 20 -16 0  
SINCE JUL 1 9 39 -30 3  
 
COOLING  
YESTERDAY 4 2 2 5  
MONTH TO DATE 38 26 12 87  
SINCE SEP 1 38 26 12 87  
SINCE JAN 1 690 722 -32 934    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 2:00 AM  
LOWEST 19 3:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 97 2021  
MINIMUM TEMPERATURE (F) 48 29 2020  
 
SUNRISE AND SUNSET  
SEPTEMBER 9 2023.....SUNRISE 6:44 AM MDT SUNSET 7:34 PM MDT  
SEPTEMBER 10 2023.....SUNRISE 6:45 AM MDT SUNSET 7:32 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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