142  
CDUS45 KRIW 210747  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
147 AM MDT TUE MAY 21 2024  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 20 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 63 4:56 PM 90 2002 72 -9 87  
MINIMUM 42 5:28 AM 29 2003 45 -3 43  
AVERAGE 53 59 -6 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 0.42 2010 0.05 0.00 0.00  
MONTH TO DATE 1.52 0.77 0.75 0.20  
SINCE MAR 1 2.79 1.52 1.27 0.77  
SINCE JAN 1 2.84 1.79 1.05 0.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 7 5 0  
MONTH TO DATE 227 210 17 101  
SINCE MAR 1 1522 1600 -78 1458  
SINCE JUL 1 6778 7424 -646 7687  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 6 -6 3  
SINCE MAR 1 0 7 -7 3  
SINCE JAN 1 0 7 -7 3    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 9.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 11:00 PM  
LOWEST 26 3:00 PM  
AVERAGE 54  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 88 2023  
MINIMUM TEMPERATURE (F) 46 31 2001  
 
SUNRISE AND SUNSET  
MAY 21 2024...........SUNRISE 5:38 AM MDT SUNSET 8:40 PM MDT  
MAY 22 2024...........SUNRISE 5:37 AM MDT SUNSET 8:41 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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