Weather Service Report


743 
CDUS45 KTFX 220732
CLIHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT                              
132 AM MDT SUN OCT 22 2017


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

...THE HELENA MT CLIMATE SUMMARY FOR OCTOBER 21 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         51    301 PM  82    2003  57     -6       63       
  MINIMUM         38    715 AM  15    1984  31      7       42       
                                      1981                          
  AVERAGE         45                        44      1       53      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.63 1975   0.02  -0.02     0.00    
  MONTH TO DATE    0.43                      0.50  -0.07     1.14    
  SINCE OCT 1      0.43                      0.50  -0.07     1.14    
  SINCE JAN 1      7.62                     10.15  -2.53     8.31    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           3.6  1975   0.1   -0.1      0.0     
  MONTH TO DATE    1.2                       1.5   -0.3      1.0     
  SINCE SEP 1      1.2                       2.8   -1.6      1.0     
  SINCE JUL 1      1.2                       3.1   -1.9      1.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       20                        21     -1       12       
  MONTH TO DATE  396                       365     31      366       
  SINCE SEP 1    664                       602     62      576       
  SINCE JUL 1    666                       671     -5      620       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE SEP 1     66                        23     43       13       
  SINCE JAN 1    702                       406    296      455       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    10.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.3                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    64           700 AM                                     
 LOWEST     29           200 PM                                     
 AVERAGE    47                                                       

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

                                                                     
THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        78      1915                    
 MINIMUM TEMPERATURE (F)   31        10      1957                    

                                                                     
SUNRISE AND SUNSET                                                   
OCTOBER 22 2017.......SUNRISE   756 AM MDT   SUNSET   628 PM MDT   
OCTOBER 23 2017.......SUNRISE   757 AM MDT   SUNSET   627 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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Western Regional Climate Center, wrcc@dri.edu