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CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
140 AM MDT THU SEP 20 2018


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

...THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 19 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58    321 PM  86    2009  67     -9       47       
                                      1956                          
  MINIMUM         37    236 AM  16    1983  34      3       33       
  AVERAGE         48                        51     -3       40      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.32          0.68 1968   0.04   0.28     0.03    
  MONTH TO DATE    0.71                      0.67   0.04     1.27    
  SINCE OCT 1     13.37                     12.44   0.93    13.26    
  SINCE JAN 1     11.93                     10.55   1.38    10.04    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                                 
  SINCE JUL 1     MM                                                 
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       17                        14      3       25       
  MONTH TO DATE  186                       208    -22      163       
  SINCE SEP 1    186                       208    -22      163       
  SINCE JUL 1    382                       436    -54      236       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        5       
  SINCE SEP 1      0                         0      0        5       
  SINCE JAN 1     90                        79     11      129       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NE (50)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NE (60)       
  AVERAGE WIND SPEED     2.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92          1000 PM                                     
 LOWEST     51           400 PM                                     
 AVERAGE    72                                                       

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

                                                                     
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 2018.....SUNRISE   715 AM MDT   SUNSET   731 PM MDT   
SEPTEMBER 21 2018.....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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