477  
CDUS45 KMSO 152231  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA MT  
431 PM MDT MON MAY 15 2023  
   
...............................
 
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR MAY 15 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 70 259 PM 83 2012 61 9 71  
MINIMUM 43 555 AM 21 2004 34 9 30  
AVERAGE 57 48 9 51  
 
PRECIPITATION (IN)  
TODAY 0.00 1.02 1952 0.06 -0.06 T  
MONTH TO DATE 1.25 0.77 0.48 0.21  
SINCE JAN 1 3.96 3.59 0.37 1.37  
 
SNOWFALL (IN)  
TODAY MM  
MONTH TO DATE MM  
SINCE MAR 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 8 18 -10 14  
MONTH TO DATE 220 299 -79 345  
SINCE MAR 1 2427 2123 304 2238  
SINCE JUL 1 9144 8598 546 8116  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 28 300 PM  
AVERAGE 61  
   
......................................................
 
 
THE BUTTE MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 84 1988  
MINIMUM TEMPERATURE (F) 35 21 1986  
 
SUNRISE AND SUNSET  
MAY 15 2023...........SUNRISE 558 AM MDT SUNSET 855 PM MDT  
MAY 16 2023...........SUNRISE 557 AM MDT SUNSET 856 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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