Montana Department of Transportation

Main Content

Accidents and Incidents Report

Helena Climatic Report

CDUS45 KTFX 300736
CLIHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT                              
135 AM MDT TUE MAY 30 2017


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

...THE HELENA MT CLIMATE SUMMARY FOR MAY 29 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         81    413 PM  91    2003  71     10       73       
                                      1986                          
  MINIMUM         47    548 AM  27    1951  45      2       43       
  AVERAGE         64                        58      6       58      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.51 1927   0.08  -0.08      T      
  MONTH TO DATE    1.35                      1.71  -0.36     1.45    
  SINCE OCT 1      6.77                      5.51   1.26     4.82    
  SINCE JAN 1      3.79                      3.94  -0.15     3.12    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           1.7  1942   0.0    0.0      0.0     
  MONTH TO DATE    0.0                       0.9   -0.9       T      
  SINCE MAR 1      2.9                      10.8   -7.9       T      
  SINCE JUL 1     51.5                      38.1   13.4     14.8     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        1                         8     -7        7       
  MONTH TO DATE  273                       335    -62      330       
  SINCE MAR 1   1550                      1828   -278     1539       
  SINCE JUL 1   7350                      7389    -39     6479       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    6                         1      5        0       
  SINCE MAR 1      6                         1      5        0       
  SINCE JAN 1      6                         1      5        0       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (70)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NE (40)       
  AVERAGE WIND SPEED     4.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           600 AMLOWEST     18           400 PM                                     
 AVERAGE    52                                                       

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

                                                                     
THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   71        92      1986                    
 MINIMUM TEMPERATURE (F)   45        29      1977                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 30 2017...........SUNRISE   540 AM MDT   SUNSET   912 PM MDT   
MAY 31 2017...........SUNRISE   539 AM MDT   SUNSET   913 PM MDT   

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




--------------------------------