617  
CDUS45 KRIW 010736  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1236 AM MST MON JAN 01 2024  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JANUARY 1 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 37 4:12 PM 65 2003 29 8 7  
MINIMUM 10 8:01 AM -22 2011 6 4 -15  
AVERAGE 24 17 7 -4  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.01 1999 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.00 0.00 0.00  
SINCE DEC 1 0.03 0.11 -0.08 0.01  
SINCE JAN 1 0.00 0.00 0.00 0.00  
 
DEGREE DAYS  
HEATING  
YESTERDAY 41 48 -7 69  
MONTH TO DATE 41 48 -7 69  
SINCE DEC 1 1589 1463 126 1286  
SINCE JUL 1 3521 3240 281 2705  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 1.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 11:00 AM  
LOWEST 75 4:00 PM  
AVERAGE 84  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 49 2006  
MINIMUM TEMPERATURE (F) 6 -20 2018  
 
SUNRISE AND SUNSET  
JANUARY 2 2023.......SUNRISE 7:49 AM MST SUNSET 4:44 PM MST  
JANUARY 3 2023.......SUNRISE 7:49 AM MST SUNSET 4:45 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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