AFOS product CLIBTM
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CDUS45 KMSO 210739
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
138 AM MDT SUN MAY 21 2017


................................... 

...THE BUTTE MT CLIMATE SUMMARY FOR MAY 20 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58   1155 AM  83    1919  62     -4       54       
  MINIMUM         33    518 AM  23    2003  35     -2       40       
  AVERAGE         46                        49     -3       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.02          1.20 1902   0.07  -0.05     0.09    
  MONTH TO DATE    1.54                      1.15   0.39     0.66    
  SINCE OCT 1      8.50                      5.87   2.63     5.48    
  SINCE JAN 1      5.28                      3.98   1.30     2.74    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                                 
  SINCE JUL 1     MM                                                 
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       19                        16      3       18       
  MONTH TO DATE  371                       380     -9      353       
  SINCE MAR 1   1969                      2202   -233     1971       
  SINCE JUL 1   8753                      8771    -18     8368       
                                                                     
 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    23   HIGHEST WIND DIRECTION     N (20)       
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     N (20)       
  AVERAGE WIND SPEED     5.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    89           200 AM                                     
 LOWEST     39           100 PM                                     
 AVERAGE    64                                                       

..........................................................

                                                                     
THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   63        84      1919                    
 MINIMUM TEMPERATURE (F)   36        12      1938                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 21 2017...........SUNRISE   551 AM MDT   SUNSET   903 PM MDT   
MAY 22 2017...........SUNRISE   550 AM MDT   SUNSET   904 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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