341  
CDUS45 KRIW 280743  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT FRI APR 28 2017  
 
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR APRIL 27 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 55 158 PM 82 2004 64 -9 47  
MINIMUM 39 1159 PM 23 2008 36 3 35  
AVERAGE 47 50 -3 41  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 0.14 2002 0.03 -0.01 0.00  
MONTH TO DATE 0.51 0.62 -0.11 0.46  
SINCE MAR 1 0.81 1.02 -0.21 0.82  
SINCE JAN 1 1.02 1.43 -0.41 0.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 15 3 24  
MONTH TO DATE 456 514 -58 388  
SINCE MAR 1 1100 1385 -285 1136  
SINCE JUL 1 7141 7356 -215 6289  
 
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 37 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 22.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 500 AM  
LOWEST 43 200 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 87 2000  
MINIMUM TEMPERATURE (F) 36 28 2005  
 
 
SUNRISE AND SUNSET  
APRIL 28 2017.........SUNRISE 607 AM MDT SUNSET 813 PM MDT  
APRIL 29 2017.........SUNRISE 605 AM MDT SUNSET 815 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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