AFOS product CLIMSO
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CDUS45 KMSO 210754
CLIMSO


CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA, MT                                
1254 AM MST TUE DEC 21 2010


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

...THE MISSOULA MT CLIMATE SUMMARY FOR DECEMBER 20 2010...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1893 TO 2010


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         26    341 PM  49    1933  29     -3       36       
  MINIMUM         16    729 PM -20    1998  15      1       31       
  AVERAGE         21                        22     -1       34      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.34          0.68 1917   0.04   0.30     0.25    
  MONTH TO DATE    1.07                      0.72   0.35     0.52    
  SINCE OCT 1      3.65                      2.51   1.14     1.43    
  SINCE JAN 1     15.95                     13.39   2.56    11.25    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        4.4                                               
  MONTH TO DATE   10.0                                               
  SINCE JAN 1     28.8                                               
  SINCE JUL 1     20.0                                               
  SNOW DEPTH       7                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       44                        43      1       31       
  MONTH TO DATE  807                       821    -14      934       
  SINCE DEC 1    807                       821    -14      934       
  SINCE JUL 1   2707                      2836   -129     2810       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    244                       256    -12      353       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED     7   HIGHEST WIND DIRECTION    SE (120)      
  HIGHEST GUST SPEED     8   HIGHEST GUST DIRECTION    SE (120)      
  AVERAGE WIND SPEED     2.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HEAVY SNOW                                                         
  SNOW                                                               
  LIGHT SNOW                                                         
  FOG                                                                
  FOG W/VISIBILITY <= 1/4 MILE                                       

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           400 AM                                     
 LOWEST     75           300 PM                                     
 AVERAGE    88                                                       

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

                                                                     
THE MISSOULA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   29        56      1933                    
 MINIMUM TEMPERATURE (F)   15       -25      1990                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 21 2010......SUNRISE   819 AM MST   SUNSET   450 PM MST   
DECEMBER 22 2010......SUNRISE   819 AM MST   SUNSET   451 PM MST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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