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CDUS45 KMSO 220737
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
137 AM MDT FRI SEP 22 2017


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

...THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 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         44    429 PM  85    1918  66    -22       57       
  MINIMUM         31    452 AM  21    1995  34     -3       41       
  AVERAGE         38                        50    -12       49      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.01          0.70 1937   0.03  -0.02     0.02    
  MONTH TO DATE    1.38                      0.73   0.65     0.89    
  SINCE OCT 1     13.37                     12.50   0.87     9.69    
  SINCE JAN 1     10.15                     10.61  -0.46     6.95    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                                 
  SINCE JUL 1     MM                                                 
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       27                        15     12       16       
  MONTH TO DATE  213                       238    -25      299       
  SINCE SEP 1    213                       238    -25      299       
  SINCE JUL 1    286                       466   -180      597       
                                                                     
 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    17   HIGHEST WIND DIRECTION     S (160)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SE (130)      
  AVERAGE WIND SPEED     3.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1200 AM                                     
 LOWEST     53           100 PM                                     
 AVERAGE    77                                                       

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

                                                                     
THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        86      1987                    
 MINIMUM TEMPERATURE (F)   33        19      1993                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 22 2017.....SUNRISE   717 AM MDT   SUNSET   727 PM MDT   
SEPTEMBER 23 2017.....SUNRISE   719 AM MDT   SUNSET   725 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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