918  
CDUS45 KRIW 190048  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
548 PM MST THU JAN 18 2018  
 
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR JANUARY 18 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 27 MM 42 2006 29 -2 21  
MINIMUM 8 300 AM -7 2017 5 3 -7  
2013  
AVERAGE 18  
 
PRECIPITATION (IN)  
TODAY 0.00 0.02 2008 0.01 -0.01 0.00  
MONTH TO DATE 0.01 0.14 -0.13 0.08  
SINCE DEC 1 0.23 0.42 -0.19 0.11  
SINCE JAN 1 0.01 0.14 -0.13 0.08  
 
DEGREE DAYS  
HEATING  
TODAY 47 48 -1 58  
MONTH TO DATE 931 875 56 1213  
SINCE DEC 1 2373 2341 32 2862  
SINCE JUL 1 4150 4198 -48 4237  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 3.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 700 AM  
LOWEST 68 200 PM  
AVERAGE 80  
   
......................................................
 
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 46 1999  
MINIMUM TEMPERATURE (F) 5 -9 2007  
 
 
SUNRISE AND SUNSET  
JANUARY 18 2018.......SUNRISE 743 AM MST SUNSET 502 PM MST  
JANUARY 19 2018.......SUNRISE 743 AM MST SUNSET 504 PM MST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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