425  
CDUS45 KRIW 180036  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
628 PM MDT THU AUG 17 2017  
 
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 17 2017
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 88 MM 99 2013 90 -2 98  
MINIMUM 54 MM 41 2002 55 -1 59  
AVERAGE 71  
 
PRECIPITATION (IN)  
TODAY T 0.02 2003 0.01 -0.01 0.00  
MONTH TO DATE 0.07 0.16 -0.09 0.09  
SINCE JUN 1 0.44 2.02 -1.58 0.35  
SINCE JAN 1 1.98 5.19 -3.21 2.64  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 17 76 -59 7  
SINCE JUL 1 0 6 -6 2  
 
COOLING  
TODAY 6 7 -1 14  
MONTH TO DATE 90 152 -62 183  
SINCE JUN 1 634 535 99 768  
SINCE JAN 1 646 555 91 779    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 3.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 62 300 AM  
LOWEST 13 200 PM  
AVERAGE 38  
   
......................................................
 
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 100 2001  
MINIMUM TEMPERATURE (F) 55 44 2009  
 
 
SUNRISE AND SUNSET  
AUGUST 17 2017........SUNRISE 618 AM MDT SUNSET 814 PM MDT  
AUGUST 18 2017........SUNRISE 619 AM MDT SUNSET 812 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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