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CDUS45 KMSO 220738
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
1238 AM MST FRI DEC 22 2017


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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 21 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         19    446 PM  50    1940  29    -10       28       
  MINIMUM          0    747 AM -43    1983   5     -5       -6       
  AVERAGE         10                        17     -7       11      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.24 1988   0.02  -0.02     0.00    
  MONTH TO DATE    0.21                      0.35  -0.14     0.34    
  SINCE OCT 1      1.12                      1.73  -0.61     3.12    
  SINCE JAN 1     11.65                     12.61  -0.96    10.50    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JAN 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       55                        48      7       54       
  MONTH TO DATE  894                       993    -99     1117       
  SINCE DEC 1    894                       993    -99     1117       
  SINCE JUL 1   3289                      3483   -194     3411       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    129                        81     48       57       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     S (160)      
  HIGHEST GUST SPEED     9   HIGHEST GUST DIRECTION     S (160)      
  AVERAGE WIND SPEED     2.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87           600 AM                                     
 LOWEST     67           500 PM                                     
 AVERAGE    77                                                       

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

                                                                     
THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   29        53      1933                    
 MINIMUM TEMPERATURE (F)    5       -44      1990                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 22 2017......SUNRISE   809 AM MST   SUNSET   448 PM MST   
DECEMBER 23 2017......SUNRISE   810 AM MST   SUNSET   449 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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