729  
CDUS45 KMSO 210738  
CLIBTM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MISSOULA, MT  
137 AM MDT THU AUG 21 2008  
 
...................................  
   
..THE BUTTE MT CLIMATE SUMMARY FOR AUGUST 20 2008  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1895 TO 2008  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 341 PM 91 1973 78 0 63  
MINIMUM 42 607 AM 31 1938 43 -1 46  
AVERAGE 60 61 -1 55  
 
PRECIPITATION (IN)  
YESTERDAY T 0.69 1923 0.04 -0.04 T  
MONTH TO DATE 0.45 0.92 -0.47 0.67  
SINCE OCT 1 8.93 11.25 -2.32 11.29  
SINCE JAN 1 7.30 9.33 -2.03 8.48  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE MM  
SINCE JAN 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 6 -1 10  
MONTH TO DATE 58 88 -30 47  
SINCE JUN 1 497 495 2 271  
SINCE JUL 1 142 217 -75 48  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 18 40 -22 20  
SINCE JUN 1 49 104 -55 194  
SINCE JAN 1 49 104 -55 194    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 6.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 400 AM  
LOWEST 21 400 PM  
AVERAGE 57  
 
..........................................................  
 
 
THE BUTTE MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 91 1969  
MINIMUM TEMPERATURE (F) 43 29 1966  
 
 
SUNRISE AND SUNSET  
AUGUST 21 2008........SUNRISE 638 AM MDT SUNSET 827 PM MDT  
AUGUST 22 2008........SUNRISE 639 AM MDT SUNSET 826 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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