647  
CDUS45 KMSO 160747  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
147 AM MDT SAT SEP 16 2023  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 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 75 523 PM 93 2000 70 5 70  
MINIMUM 34 633 AM 22 1970 37 -3 42  
AVERAGE 55 53 2 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.65 2017 0.03 -0.03 0.02  
MONTH TO DATE 1.61 0.57 1.04 0.03  
SINCE JAN 1 14.78 10.34 4.44 6.73  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 12 -2 9  
MONTH TO DATE 107 146 -39 77  
SINCE SEP 1 107 146 -39 77  
SINCE JUL 1 245 361 -116 138  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 3 0 3 16  
SINCE SEP 1 3 0 3 16  
SINCE JAN 1 73 81 -8 177    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 3.7  
 
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 92 400 AM  
LOWEST 17 400 PM  
AVERAGE 55  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 86 1998  
MINIMUM TEMPERATURE (F) 37 18 1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2023.....SUNRISE 709 AM MDT SUNSET 740 PM MDT  
SEPTEMBER 17 2023.....SUNRISE 711 AM MDT SUNSET 738 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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