538  
CDUS45 KMSO 160837  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MST SAT DEC 16 2023  
   
...............................  
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR DECEMBER 15 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 39 324 PM 53 1980 30 9 23  
MINIMUM 10 837 AM -27 1967 7 3 1  
AVERAGE 25 18 7 12  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.30 1947 0.02 -0.02 0.02  
MONTH TO DATE 0.15 0.23 -0.08 0.35  
SINCE JAN 1 17.10 12.51 4.59 9.54  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 40 47 -7 53  
MONTH TO DATE 547 678 -131 726  
SINCE DEC 1 547 678 -131 726  
SINCE JUL 1 2720 3133 -413 3076  
 
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 7 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 1.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 1100 PM  
LOWEST 52 200 PM  
AVERAGE 70  
   
......................................................  
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 58 1980  
MINIMUM TEMPERATURE (F) 7 -36 1964  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 806 AM MST SUNSET 446 PM MST  
DECEMBER 17 2023......SUNRISE 806 AM MST SUNSET 446 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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