216  
CDUS45 KMSO 302231  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
431 PM MDT SAT SEP 30 2023  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 30 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 59 250 PM 84 1992 62 -3 57  
MINIMUM 37 1237 AM 13 1985 33 4 45  
AVERAGE 48 47 1 51  
 
PRECIPITATION (IN)  
TODAY 0.01 0.51 2009 0.03 -0.02 0.05  
MONTH TO DATE 2.35 1.07 1.28 1.46  
SINCE JAN 1 15.52 10.84 4.68 8.16  
 
SNOWFALL (IN)  
TODAY MM  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 17 18 -1 14  
MONTH TO DATE 315 368 -53 243  
SINCE SEP 1 315 368 -53 243  
SINCE JUL 1 453 583 -130 304  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 3 2 1 16  
SINCE SEP 1 3 2 1 16  
SINCE JAN 1 73 83 -10 177    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 3.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 600 AM  
LOWEST 51 300 PM  
AVERAGE 72  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 83 1992  
MINIMUM TEMPERATURE (F) 32 12 1950  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2023.....SUNRISE 727 AM MDT SUNSET 712 PM MDT  
OCTOBER 1 2023.......SUNRISE 728 AM MDT SUNSET 710 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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