438  
CDUS45 KRIW 050731  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT SAT APR 05 2025  
   
...............................  
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR APRIL 4 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 45 3:51 PM 80 2000 57 -12 73  
MINIMUM 25 11:59 PM 16 2002 31 -6 34  
AVERAGE 35 44 -9 54  
 
PRECIPITATION (IN)  
YESTERDAY T 0.02 2022 0.01 -0.01 0.00  
MONTH TO DATE T 0.04 -0.04 T  
SINCE MAR 1 0.47 0.26 0.21 0.44  
SINCE JAN 1 0.68 0.53 0.15 0.49  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 21 9 11  
MONTH TO DATE 105 86 19 69  
SINCE MAR 1 837 926 -89 887  
SINCE JUL 1 6322 6750 -428 6143  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 3:00 AM  
LOWEST 27 5:00 PM  
AVERAGE 62  
   
......................................................  
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 78 2006  
MINIMUM TEMPERATURE (F) 31 18 1999  
2009  
 
SUNRISE AND SUNSET  
APRIL 5 2025.........SUNRISE 6:45 AM MDT SUNSET 7:45 PM MDT  
APRIL 6 2025.........SUNRISE 6:43 AM MDT SUNSET 7:46 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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