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CDUS45 KMSO 210740
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
140 AM MDT THU SEP 21 2017


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

...THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 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         51    101 PM  83    1918  66    -15       66       
  MINIMUM         33   1124 PM   8    1983  34     -1       34       
  AVERAGE         42                        50     -8       50      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.10          0.63 1968   0.03   0.07     0.03    
  MONTH TO DATE    1.37                      0.70   0.67     0.87    
  SINCE OCT 1     13.36                     12.47   0.89     9.67    
  SINCE JAN 1     10.14                     10.58  -0.44     6.93    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                                 
  SINCE JUL 1     MM                                                 
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       23                        15      8       15       
  MONTH TO DATE  186                       223    -37      283       
  SINCE SEP 1    186                       223    -37      283       
  SINCE JUL 1    259                       451   -192      581       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    5                         0      5        3       
  SINCE SEP 1      5                         0      5        3       
  SINCE JAN 1    129                        79     50       57       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     5.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  RAIN                                                               
  LIGHT RAIN                                                         
  LIGHT SNOW                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1000 PM                                     
 LOWEST     64           500 AM                                     
 AVERAGE    82                                                       

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

                                                                     
THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   66        85      1918                    
 MINIMUM TEMPERATURE (F)   34        21      1995                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 21 2017.....SUNRISE   716 AM MDT   SUNSET   729 PM MDT   
SEPTEMBER 22 2017.....SUNRISE   717 AM MDT   SUNSET   727 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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