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CDUS45 KMSO 210839
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
138 AM MST MON DEC 21 2015


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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 20 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         24   1133 PM  49    1958  29     -5       35       
  MINIMUM         -1    606 PM -36    1998   5     -6       17       
  AVERAGE         12                        17     -5       26      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.25 1941   0.02  -0.02      T      
  MONTH TO DATE    0.55                      0.33   0.22     0.20    
  SINCE OCT 1      2.62                      1.71   0.91     2.03    
  SINCE JAN 1     11.79                     12.59  -0.80    14.47    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                                 
  SINCE JUL 1     MM                                                 
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       53                        48      5       39       
  MONTH TO DATE  847                       945    -98      745       
  SINCE DEC 1    847                       945    -98      745       
  SINCE JUL 1   3267                      3435   -168     3075       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    101                        81     20       78       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     2.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT SNOW                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92           100 AM                                     
 LOWEST     68          1100 PM                                     
 AVERAGE    80                                                       

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

                                                                     
THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   29        50      1940                    
 MINIMUM TEMPERATURE (F)    5       -43      1983                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 21 2015......SUNRISE   809 AM MST   SUNSET   447 PM MST   
DECEMBER 22 2015......SUNRISE   809 AM MST   SUNSET   448 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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