960  
CDUS45 KRIW 200745  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1245 AM MST WED DEC 20 2023  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 19 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 45 1:53 PM 46 2004 30 15 12  
MINIMUM 17 7:50 AM -16 2016 7 10 -8  
AVERAGE 31 18 13 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.06 1999 0.00 0.00 0.00  
MONTH TO DATE T 0.07 -0.07 0.03  
SINCE DEC 1 T 0.07 -0.07 0.03  
SINCE JAN 1 8.68 5.51 3.17 5.90  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 47 -13 63  
MONTH TO DATE 704 847 -143 906  
SINCE DEC 1 704 847 -143 906  
SINCE JUL 1 2309 2624 -315 2838  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 702 744 -42 943    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 2.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 6:00 AM  
LOWEST 43 2:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 50 2020  
MINIMUM TEMPERATURE (F) 7 -16 2008  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 7:45 AM MST SUNSET 4:35 PM MST  
DECEMBER 21 2023......SUNRISE 7:46 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.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WY Page Main Text Page