138  
CDUS45 KMSO 092231  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
431 PM MDT SAT SEP 09 2023  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 9 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 70 1240 PM 87 1981 72 -2 58  
MINIMUM 40 630 AM 20 1959 38 2 29  
AVERAGE 55 55 0 44  
 
PRECIPITATION (IN)  
TODAY 0.01 0.60 1961 0.04 -0.03 T  
MONTH TO DATE 1.60 0.35 1.25 T  
SINCE JAN 1 14.77 10.12 4.65 6.70  
 
SNOWFALL (IN)  
TODAY MM  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 10 10 0 21  
MONTH TO DATE 57 79 -22 31  
SINCE SEP 1 57 79 -22 31  
SINCE JUL 1 195 294 -99 92  
 
COOLING  
TODAY 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 22 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 100 AM  
LOWEST 25 100 PM  
AVERAGE 59  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 87 1966  
MINIMUM TEMPERATURE (F) 38 24 1921  
 
SUNRISE AND SUNSET  
SEPTEMBER 9 2023.....SUNRISE 701 AM MDT SUNSET 753 PM MDT  
SEPTEMBER 10 2023.....SUNRISE 702 AM MDT SUNSET 751 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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