189  
CDUS45 KRIW 180734  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
133 AM MDT SUN AUG 18 2019  
 
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 17 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 245 PM 99 2013 90 -12 97  
MINIMUM 54 443 AM 41 2002 55 -1 62  
AVERAGE 66 72 -6 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.02 2003 0.01 -0.01 0.00  
MONTH TO DATE 0.09 0.16 -0.07 0.07  
SINCE JUN 1 1.38 2.02 -0.64 1.43  
SINCE JAN 1 4.11 5.19 -1.08 4.84  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 71 76 -5 45  
SINCE JUL 1 1 6 -5 0  
 
COOLING  
YESTERDAY 1 7 -6 15  
MONTH TO DATE 178 152 26 168  
SINCE JUN 1 565 535 30 619  
SINCE JAN 1 572 555 17 644    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 13.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 67 600 AM  
LOWEST 33 1200 PM  
AVERAGE 50  
   
......................................................
 
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 100 2001  
MINIMUM TEMPERATURE (F) 55 44 2009  
 
 
SUNRISE AND SUNSET  
AUGUST 18 2019........SUNRISE 618 AM MDT SUNSET 813 PM MDT  
AUGUST 19 2019........SUNRISE 620 AM MDT SUNSET 811 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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