AFOS product CLIBTM
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CDUS45 KMSO 200837
CLIBTM

CLIMATE REPORT 
NATIONAL WEATHER SERVICE MISSOULA MT
137 AM MST SUN DEC 20 2020

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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 19 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         41    214 PM  52    2004  29     12       40       
  MINIMUM         31    926 PM -27    1945   4     27       11       
  AVERAGE         36                        17     19       26     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          0.60 1925   0.01  -0.01     0.00     
  MONTH TO DATE    0.06                      0.31  -0.25      T       
  SINCE JAN 1     10.16                     12.57  -2.41    12.57     

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

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY       29                        48    -19       39        
  MONTH TO DATE  764                       897   -133      815        
  SINCE DEC 1    764                       897   -133      815        
  SINCE JUL 1   3111                      3387   -276     3406        

 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    25   HIGHEST WIND DIRECTION     W (270)       
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (260)       
  AVERAGE WIND SPEED     7.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.6                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    66          1200 AM                                      
 LOWEST     36           200 PM                                      
 AVERAGE    51                                                        

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   29        49      1958                      
 MINIMUM TEMPERATURE (F)    5       -36      1998                      


SUNRISE AND SUNSET                                                    
DECEMBER 20 2020......SUNRISE   809 AM MST   SUNSET   447 PM MST     
DECEMBER 21 2020......SUNRISE   809 AM MST   SUNSET   448 PM MST     


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




$$