505 
CDUS45 KMSO 201615
CLIBTM


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
1014 AM MDT THU MAY 20 2004

................................... 

...THE BUTTE CLIMATE SUMMARY FOR MAY 19 2004...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1895 TO 2004

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         54    233 PM  85    1954  62     -8       47       
  MINIMUM         39   1053 PM  22    2003  35      4       22       
  AVERAGE         47                        49     -2       35      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.22 1938   0.07  -0.07     0.00    
  MONTH TO DATE    0.89                      1.19  -0.30     0.76    
  SINCE OCT 1      3.50                      5.96  -2.46     5.72    
  SINCE JAN 1      2.76                      4.04  -1.28     5.25    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM                                                 
  MONTH TO DATE   MM                                                 
  SINCE JAN 1     MM                                               
  SINCE JUL 1     MM                                               
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       18                        16      2       30       
  MONTH TO DATE  350                       357     -7      474       
  SINCE MAR 1   1927                      2215   -288     2280       
  SINCE JUL 1   8447                      8938   -491     8949       
                                                                     
 COOLING                                                             
  YESTERDAY        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    17   HIGHEST WIND DIRECTION    SE (140)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SE (140)      
  AVERAGE WIND SPEED     4.9                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92          M400 AM                                     
 LOWEST     59          1200 PM                                     
 AVERAGE    76                                                       
..........................................................
                                                                     
THE BUTTE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   62        83      1919                    
 MINIMUM TEMPERATURE (F)   36        23      2003                    
                                                                     
SUNRISE AND SUNSET                                                   
MAY 20 2004...........SUNRISE   552 AM MDT   SUNSET   902 PM MDT   
MAY 21 2004...........SUNRISE   551 AM MDT   SUNSET   903 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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