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CDUS45 KMSO 310838
CLIBTM

CLIMATE REPORT 
NATIONAL WEATHER SERVICE MISSOULA MT
138 AM MST THU DEC 31 2020

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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 30 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         35    355 PM  55    1917  30      5       28       
  MINIMUM          6    111 AM -42    1978   6      0        2       
  AVERAGE         21                        18      3       15     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             0.22 2004   0.01  -0.01     0.00     
  MONTH TO DATE    0.10                      0.49  -0.39     0.10     
  SINCE JAN 1     10.20                     12.75  -2.55    12.67     

SNOWFALL (IN)                                                              
  YESTERDAY       MM                                                  
  MONTH TO DATE   MM                                                  
  SINCE DEC 1     MM                                                  
  SINCE JUL 1     MM                                                  
  SNOW DEPTH      MM                                                  

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       44                        47     -3       50        
  MONTH TO DATE 1227                      1423   -196     1308        
  SINCE DEC 1   1227                      1423   -196     1308        
  SINCE JUL 1   3574                      3913   -339     3899        

 COOLING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE    0                         0      0        0        
  SINCE DEC 1      0                         0      0        0        
  SINCE JAN 1     87                        81      6       84        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     N (340)       
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     N (340)       
  AVERAGE WIND SPEED     2.6                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.7                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT SNOW                                                          
  HAZE                                                                


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           900 PM                                      
 LOWEST     49          1200 PM                                      
 AVERAGE    67                                                        

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   30        53      1917                      
 MINIMUM TEMPERATURE (F)    6       -39      1978                      


SUNRISE AND SUNSET                                                    
DECEMBER 31 2020......SUNRISE   812 AM MST   SUNSET   455 PM MST     
JANUARY  1 2021.......SUNRISE   812 AM MST   SUNSET   456 PM MST     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$