792  
CDUS45 KMSO 260738  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA, MT  
137 AM MDT MON OCT 26 2009  
 
   
...............................  
 
   
..THE BUTTE MT CLIMATE SUMMARY FOR OCTOBER 25 2009  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1895 TO 2009  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 44 400 PM 71 1999 51 -7 56  
1990  
MINIMUM 22 743 AM 0 1919 23 -1 37  
AVERAGE 33 37 -4 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.45 1910 0.02 -0.02 0.00  
MONTH TO DATE 1.05 0.66 0.39 0.42  
SINCE OCT 1 1.05 0.66 0.39 0.42  
SINCE JAN 1 12.12 11.52 0.60 8.57  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE JAN 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 28 4 18  
MONTH TO DATE 739 579 160 627  
SINCE SEP 1 969 989 -20 1077  
SINCE JUL 1 1218 1283 -65 1307  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 2 6 -4 0  
SINCE JAN 1 34 127 -93 52    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 3.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 500 AM  
LOWEST 33 300 PM  
AVERAGE 61  
   
......................................................  
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 50 75 1944  
MINIMUM TEMPERATURE (F) 22 9 2002  
 
 
SUNRISE AND SUNSET  
OCTOBER 26 2009.......SUNRISE 802 AM MDT SUNSET 625 PM MDT  
OCTOBER 27 2009.......SUNRISE 804 AM MDT SUNSET 623 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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