502  
CDUS45 KMSO 240737  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
137 AM MDT SUN SEP 24 2023  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR SEPTEMBER 23 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 65 443 PM 87 1987 66 -1 67  
MINIMUM 38 1159 PM 15 1934 35 3 40  
AVERAGE 52 50 2 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.22 1917 0.03 -0.03 0.00  
MONTH TO DATE 2.34 0.85 1.49 1.28  
SINCE JAN 1 15.51 10.62 4.89 7.98  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 15 -2 11  
MONTH TO DATE 214 253 -39 181  
SINCE SEP 1 214 253 -39 181  
SINCE JUL 1 352 468 -116 242  
 
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 10 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 30 400 PM  
AVERAGE 62  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 85 2001  
2009  
2014  
MINIMUM TEMPERATURE (F) 34 3 1926  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2023.....SUNRISE 719 AM MDT SUNSET 724 PM MDT  
SEPTEMBER 25 2023.....SUNRISE 721 AM MDT SUNSET 722 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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