631  
CDUS45 KRIW 190727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1227 AM MST THU DEC 19 2024  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 18 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 50R 7:15 PM 48 1999 30 20 36  
MINIMUM 12 7:45 AM -25 2016 7 5 11  
AVERAGE 31 18 13 24  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 1999 0.01 -0.01 0.00  
2010  
MONTH TO DATE T 0.07 -0.07 T  
SINCE DEC 1 T 0.07 -0.07 T  
SINCE JAN 1 6.28 5.51 0.77 8.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 47 -13 41  
MONTH TO DATE 636 800 -164 670  
SINCE DEC 1 636 800 -164 670  
SINCE JUL 1 2031 2577 -546 2275  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 832 744 88 702    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.2  
 
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 84 2:00 AM  
LOWEST 33 7:00 PM  
AVERAGE 59  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 46 2004  
MINIMUM TEMPERATURE (F) 7 -16 2016  
 
SUNRISE AND SUNSET  
DECEMBER 19 2024......SUNRISE 7:45 AM MST SUNSET 4:35 PM MST  
DECEMBER 20 2024......SUNRISE 7:45 AM MST SUNSET 4:35 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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