090  
CDUS45 KRIW 310732  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1232 AM MST SUN DEC 31 2023  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 30 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 42 3:41 PM 61 2002 29 13 28  
MINIMUM 9 8:02 AM -17 2014 6 3 5  
AVERAGE 26 17 9 17  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.14 2000 0.01 -0.01 0.00  
MONTH TO DATE T 0.11 -0.11 0.03  
SINCE DEC 1 T 0.11 -0.11 0.03  
SINCE JAN 1 8.68 5.55 3.13 5.90  
 
DEGREE DAYS  
HEATING  
YESTERDAY 39 48 -9 48  
MONTH TO DATE 1164 1369 -205 1506  
SINCE DEC 1 1164 1369 -205 1506  
SINCE JUL 1 2769 3146 -377 3438  
 
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 6 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 7 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 1.2  
 
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 87 9:00 AM  
LOWEST 42 3:00 PM  
AVERAGE 65  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 58 2002  
MINIMUM TEMPERATURE (F) 6 -22 2014  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:49 AM MST SUNSET 4:42 PM MST  
JANUARY 1 2024.......SUNRISE 7:49 AM MST SUNSET 4:43 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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