Montana Department of Transportation

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Accidents and Incidents Report

Helena Climatic Report

CDUS45 KTFX 210739

CLIHLN





CLIMATE REPORT

NATIONAL WEATHER SERVICE GREAT FALLS MT                              

136 AM MDT TUE AUG 21 2018





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



...THE HELENA MT CLIMATE SUMMARY FOR AUGUST 20 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         63   1239 AM  96    1967  84    -21       81       

                                      1953                          

  MINIMUM         49    858 PM  39    1995  52     -3       55       

                                      1956                          

                                      1916                          

  AVERAGE         56                        68    -12       68      

                                                                     

PRECIPITATION (IN)                                                   

  YESTERDAY        0.27          1.89 1933   0.04   0.23     0.00    

  MONTH TO DATE    0.32                      0.76  -0.44      T      

  SINCE OCT 1     14.50                      9.68   4.82     8.25    

  SINCE JAN 1     11.17                      8.11   3.06     5.27    

                                                                     

SNOWFALL (IN)                                                        

  YESTERDAY        0.0           0.5  1990   0.0    0.0      0.0     

  MONTH TO DATE    0.0                       0.1   -0.1      0.0     

  SINCE JUN 1      0.0                       0.1   -0.1      0.0     

  SINCE JUL 1      0.0                       0.1   -0.1      0.0     

  SNOW DEPTH       0                                                 

                                                                     

DEGREE DAYS                                                          

 HEATING                                                             

  YESTERDAY        9                         1      8        0       

  MONTH TO DATE    9                        14     -5        2       

  SINCE JUN 1    137                       177    -40       78       

  SINCE JUL 1     26                        41    -15        2       

                                                                     

 COOLING                                                             

  YESTERDAY        0                         4     -4        3       

  MONTH TO DATE  147                       113     34      105       

  SINCE JUN 1    381                       343     38      533       

  SINCE JAN 1    386                       351     35      542       

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





WIND (MPH)                                                           

  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (340)      

  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     N (340)      

  AVERAGE WIND SPEED     7.0                                         



                                                                     

SKY COVER                                                            

  AVERAGE SKY COVER 0.8                                              



                                                                     

WEATHER CONDITIONS                                                  

 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        

  HEAVY RAIN                                                         

  RAINLIGHT RAIN                                                         

  FOG                                                                

  HAZE                                                               



                                                                     

RELATIVE HUMIDITY (PERCENT)                                          

 HIGHEST    86           800 PM                                     

 LOWEST     48          1200 AM                                     

 AVERAGE    67                                                       



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



                                                                     

THE HELENA MT CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                    

 MAXIMUM TEMPERATURE (F)   83        95      2011                    

                                             2005                    

                                             1991                    

 MINIMUM TEMPERATURE (F)   51        38      1933                    



                                                                     

SUNRISE AND SUNSET                                                   

AUGUST 21 2018........SUNRISE   634 AM MDT   SUNSET   827 PM MDT   

AUGUST 22 2018........SUNRISE   635 AM MDT   SUNSET   825 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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