AFOS product CLIBTM
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CDUS45 KMSO 010840
CLIBTM

CLIMATE REPORT 
NATIONAL WEATHER SERVICE MISSOULA MT
140 AM MST FRI JAN 01 2021

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

...THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 31 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         36    340 PM  53    1917  30      6       39       
  MINIMUM         20   1155 PM -39    1978   6     14        5       
  AVERAGE         28                        18     10       22     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             0.70 1942   0.02  -0.02      T       
  MONTH TO DATE    0.10                      0.51  -0.41     0.10     
  SINCE JAN 1     10.20                     12.77  -2.57    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       37                        47    -10       43        
  MONTH TO DATE 1264                      1470   -206     1351        
  SINCE DEC 1   1264                      1470   -206     1351        
  SINCE JUL 1   3611                      3960   -349     3942        

 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    10   HIGHEST WIND DIRECTION    SW (240)       
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (230)       
  AVERAGE WIND SPEED     3.9                                        


SKY COVER                                                             
  POSSIBLE SUNSHINE  MM                                                 
  AVERAGE SKY COVER 0.9                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT SNOW                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           500 AM                                      
 LOWEST     52           300 PM                                      
 AVERAGE    69                                                        

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


THE BUTTE MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   30        56      1918                      
 MINIMUM TEMPERATURE (F)    6       -43      1942                      


SUNRISE AND SUNSET                                                    
JANUARY  1 2021.......SUNRISE   812 AM MST   SUNSET   456 PM MST     
JANUARY  2 2021.......SUNRISE   812 AM MST   SUNSET   457 PM MST     


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




$$