983  
CDUS45 KRIW 140727  
CLIGEY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT WED APR 14 2021  
   
...............................
 
 
   
..THE GREYBULL WY CLIMATE SUMMARY FOR APRIL 13 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1998 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 41 3:45 PM 80 2017 60 -19 34  
MINIMUM 27 4:56 AM 11 2020 31 -4 11  
AVERAGE 34 46 -12 23  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.18 2010 0.02 -0.02 T  
MONTH TO DATE 0.57 0.23 0.34 0.04  
SINCE MAR 1 0.60 0.63 -0.03 0.04  
SINCE JAN 1 0.87 1.04 -0.17 0.65  
 
DEGREE DAYS  
HEATING  
YESTERDAY 31 19 12 42  
MONTH TO DATE 246 274 -28 361  
SINCE MAR 1 1094 1145 -51 1192  
SINCE JUL 1 6738 7116 -378 6926  
 
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 31 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 19.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 5:00 AM  
LOWEST 33 2:00 PM  
AVERAGE 50  
   
......................................................
 
 
THE GREYBULL WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 85 2002  
MINIMUM TEMPERATURE (F) 32 15 2014  
 
SUNRISE AND SUNSET  
APRIL 14 2021.........SUNRISE 6:29 AM MDT SUNSET 7:56 PM MDT  
APRIL 15 2021.........SUNRISE 6:28 AM MDT SUNSET 7:57 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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