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CDUS45 KMSO 200941
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
341 AM MDT WED SEP 20 2017


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

...THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 19 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         47   1201 PM  86    2009  67    -20       70       
                                      1956                          
  MINIMUM         33    625 AM  16    1983  34     -1       41       
  AVERAGE         40                        51    -11       56      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.03          0.68 1968   0.04  -0.01     0.00    
  MONTH TO DATE    1.27                      0.67   0.60     0.84    
  SINCE OCT 1     13.26                     12.44   0.82     9.64    
  SINCE JAN 1     10.04                     10.55  -0.51     6.90    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                                 
  SINCE JUL 1     MM                                                 
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       25                        14     11        9       
  MONTH TO DATE  163                       208    -45      268       
  SINCE SEP 1    163                       208    -45      268       
  SINCE JUL 1    236                       436   -200      566       
                                                                     
 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    21   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED     4.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           100 AM                                     
 LOWEST     42          1200 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   66        83      1918                    
 MINIMUM TEMPERATURE (F)   34         8      1983                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 20 2017.....SUNRISE   715 AM MDT   SUNSET   731 PM MDT   
SEPTEMBER 21 2017.....SUNRISE   716 AM MDT   SUNSET   729 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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