427  
CDUS45 KMSO 150738  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA, MT  
137 AM MDT SUN SEP 15 2019  
 
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 14 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1895 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 357 PM 87 1990 69 9 65  
MINIMUM 40 624 AM 21 1970 36 4 28  
AVERAGE 59 53 6 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.08 1966 0.03 -0.03 0.00  
MONTH TO DATE 1.47 0.51 0.96 0.05  
SINCE OCT 1 13.16 12.28 0.88 12.71  
SINCE JAN 1 11.54 10.39 1.15 11.27  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE JAN 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 12 -6 18  
MONTH TO DATE 92 140 -48 124  
SINCE SEP 1 92 140 -48 124  
SINCE JUL 1 264 368 -104 320  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 4 0 4 0  
SINCE SEP 1 4 0 4 0  
SINCE JAN 1 84 79 5 90    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 5.5  
 
 
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 86 500 AM  
LOWEST 19 500 PM  
AVERAGE 53  
   
......................................................
 
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 93 2000  
MINIMUM TEMPERATURE (F) 36 22 1970  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2019.....SUNRISE 708 AM MDT SUNSET 742 PM MDT  
SEPTEMBER 16 2019.....SUNRISE 709 AM MDT SUNSET 740 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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