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Accidents and Incidents Report

Helena Climatic Report

CDUS45 KTFX 180846
CLIHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT                              
145 AM MST SUN FEB 18 2018


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

...THE HELENA MT CLIMATE SUMMARY FOR FEBRUARY 17 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         30    150 AM  59    1930  39     -9       46       
  MINIMUM         12   1159 PM -28    1936  17     -5       34       
  AVERAGE         21                        28     -7       40      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.01          0.30 1959   0.01   0.00     0.00    
                                      1890                          
  MONTH TO DATE    1.00                      0.17   0.83     0.51    
  SINCE OCT 1      4.67                      2.10   2.57     4.11    
  SINCE JAN 1      1.34                      0.53   0.81     1.13    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM             7.7  1929   0.2   MM        0.0     
  MONTH TO DATE   10.0                       3.1    6.9      8.7     
  SINCE DEC 1     36.6                      16.6   20.0     45.2     
  SINCE JUL 1     45.4                      25.4   20.0     46.5     
  SNOW DEPTH       2                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       44                        37      7       25       
  MONTH TO DATE  805                       654    151      760       
  SINCE DEC 1   3568                      3290    278     3963       
  SINCE JUL 1   5449                      5172    277     5438       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    NW (330)      
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     4.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT SNOW                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)HIGHEST   100           800 PM                                     
 LOWEST     69          1200 AM                                     
 AVERAGE    85                                                       

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

                                                                     
THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   39        64      1930                    
 MINIMUM TEMPERATURE (F)   17       -24      1942                    

                                                                     
SUNRISE AND SUNSET                                                   
FEBRUARY 18 2018......SUNRISE   727 AM MST   SUNSET   558 PM MST   
FEBRUARY 19 2018......SUNRISE   725 AM MST   SUNSET   559 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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