307  
CDUS45 KMSO 100840  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
140 AM MST SUN DEC 10 2023  
   
...............................  
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 9 2023  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 29 1159 PM 57 1957 31 -2 30  
MINIMUM -1 750 AM -40 1972 8 -9 2  
AVERAGE 14 19 -5 16  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.30 1904 0.01 -0.01 T  
MONTH TO DATE 0.14 0.14 0.00 0.27  
SINCE JAN 1 17.09 12.42 4.67 9.46  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 51 46 5 49  
MONTH TO DATE 308 401 -93 447  
SINCE DEC 1 308 401 -93 447  
SINCE JUL 1 2481 2856 -375 2797  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 73 83 -10 177    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 600 AM  
LOWEST 37 1100 PM  
AVERAGE 60  
   
......................................................  
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 57 1990  
MINIMUM TEMPERATURE (F) 8 -34 1961  
 
SUNRISE AND SUNSET  
DECEMBER 10 2023......SUNRISE 801 AM MST SUNSET 445 PM MST  
DECEMBER 11 2023......SUNRISE 802 AM MST SUNSET 445 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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