Montana Department of Transportation

Malcolm “Mack” Long, Director

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Main Content

Accidents and Incidents Report

Billings Climatic Report

CDUS45 KBYZ 200949

CLIBIL



CLIMATE REPORT 

NATIONAL WEATHER SERVICE BILLINGS MT

349 AM MDT MON SEP 20 2021



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



...THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 19 2021...



CLIMATE NORMAL PERIOD 1991 TO 2020

CLIMATE RECORD PERIOD 1934 TO 2021





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL           

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

TEMPERATURE (F)                                                          

 YESTERDAY                                                           

  MAXIMUM         70    102 AM  93    1981  73     -3       77       

                                      2009                           

  MINIMUM         51   1137 PM  26    1983  48      3       57       

  AVERAGE         61                        60      1       67     



PRECIPITATION (IN)                                                    

  YESTERDAY        0.02          0.68 2000   0.05  -0.03      T       

  MONTH TO DATE    0.03                      0.81  -0.78     0.54     

  SINCE OCT 1     10.32                     13.76  -3.44    12.22     

  SINCE JAN 1      7.36                     11.22  -3.86    10.28     



SNOWFALL (IN)                                                              

  YESTERDAY        0.0           4.7  1983   0.0    0.0      0.0      

  MONTH TO DATE    0.0                       0.0    0.0      0.0      

  SINCE SEP 1      0.0                       0.0    0.0      0.0      

  SINCE JUL 1      0.0                       0.0    0.0      0.0      

  SNOW DEPTH       0                                                 



DEGREE DAYS                                                           

 HEATING                                                              

  YESTERDAY        4                         6     -2        0        

  MONTH TO DATE   36                        75    -39       78        

  SINCE SEP 1     36                        75    -39       78        

  SINCE JUL 1     71                       111    -40       91        



 COOLING                                                              

  YESTERDAY        0                         2     -2        2        

  MONTH TO DATE   70                        52     18       57        

  SINCE SEP 1     70                        52     18       57        

  SINCE JAN 1   1007                       647    360      737        

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





WIND (MPH)                                                            

  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    NW (320)       

  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    NW (320)       

  AVERAGE WIND SPEED     9.2                                        





SKY COVER                                                             

  POSSIBLE SUNSHINE  MM                                                 

  AVERAGE SKY COVER 0.7                                                 





WEATHER CONDITIONS                                                    

THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         

  THUNDERSTORM                                                        

  LIGHT RAIN                                                          





RELATIVE HUMIDITY (PERCENT)

 HIGHEST    83          1200 PM                                      

 LOWEST     32          1200 AM                                      

 AVERAGE    58                                                        



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





THE BILLINGS MT CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                     

 MAXIMUM TEMPERATURE (F)   72        91      1938                      

 MINIMUM TEMPERATURE (F)   47        26      1983                      





SUNRISE AND SUNSET                                                    

SEPTEMBER 20 2021.....SUNRISE   659 AM MDT   SUNSET   715 PM MDT     

SEPTEMBER 21 2021.....SUNRISE   700 AM MDT   SUNSET   713 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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