849  
CDUS45 KRIW 230730  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
130 AM MDT FRI MAY 23 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 22 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 75 4:42 PM 89 2006 73 2 67  
2023  
MINIMUM 40 2:41 AM 31 2022 46 -6 39  
AVERAGE 58 59 -1 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.74 2007 0.05 -0.02 T  
MONTH TO DATE 1.57 0.87 0.70 1.70  
SINCE MAR 1 2.49 1.62 0.87 2.97  
SINCE JAN 1 2.70 1.89 0.81 3.02  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 7 0 12  
MONTH TO DATE 187 224 -37 256  
SINCE MAR 1 1467 1614 -147 1551  
SINCE JUL 1 6952 7438 -486 6807  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 9 8 1 0  
SINCE MAR 1 9 9 0 0  
SINCE JAN 1 9 9 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 5:00 AM  
LOWEST 22 4:00 PM  
AVERAGE 54  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 86 2014  
2023  
MINIMUM TEMPERATURE (F) 46 33 2002  
 
SUNRISE AND SUNSET  
MAY 23 2025...........SUNRISE 5:37 AM MDT SUNSET 8:42 PM MDT  
MAY 24 2025...........SUNRISE 5:36 AM MDT SUNSET 8:43 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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