280  
CDUS45 KRIW 190729  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
129 AM MDT SUN MAY 19 2024  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 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 70 5:48 PM 92 2009 71 -1 72  
MINIMUM 37R 5:15 AM 38 2000 45 -8 50  
2003  
2019  
AVERAGE 54 58 -4 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.22 2013 0.05 -0.05 T  
MONTH TO DATE 1.47 0.67 0.80 0.20  
SINCE MAR 1 2.74 1.42 1.32 0.77  
SINCE JAN 1 2.79 1.69 1.10 0.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 8 3 4  
MONTH TO DATE 209 195 14 95  
SINCE MAR 1 1504 1585 -81 1452  
SINCE JUL 1 6760 7409 -649 7681  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 4 -4 3  
SINCE MAR 1 0 5 -5 3  
SINCE JAN 1 0 5 -5 3    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 6.1  
 
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 52 4:00 AM  
LOWEST 17 2:00 PM  
AVERAGE 35  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 94 2009  
MINIMUM TEMPERATURE (F) 45 31 2003  
 
SUNRISE AND SUNSET  
MAY 19 2024...........SUNRISE 5:40 AM MDT SUNSET 8:38 PM MDT  
MAY 20 2024...........SUNRISE 5:39 AM MDT SUNSET 8:39 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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