869  
CDUS45 KMSO 180838  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
138 AM MST MON DEC 18 2023  
   
...............................  
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 17 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 47 338 PM 53 1980 30 17 24  
2013  
MINIMUM 10 829 AM -38 1964 7 3 -7  
AVERAGE 29 18 11 9  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.20 1982 0.01 -0.01 0.00  
MONTH TO DATE 0.15 0.26 -0.11 0.35  
SINCE JAN 1 17.10 12.54 4.56 9.54  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE DEC 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 47 -11 56  
MONTH TO DATE 622 772 -150 841  
SINCE DEC 1 622 772 -150 841  
SINCE JUL 1 2795 3227 -432 3191  
 
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 8 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 2.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 900 AM  
LOWEST 24 300 PM  
AVERAGE 54  
   
......................................................  
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 55 1979  
MINIMUM TEMPERATURE (F) 6 -32 1924  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 807 AM MST SUNSET 446 PM MST  
DECEMBER 19 2023......SUNRISE 808 AM MST SUNSET 447 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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