Montana Department of Transportation

Malcolm “Mack” Long, Director

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Accidents and Incidents Report

Billings Climatic Report

CDUS45 KBYZ 102232

CLIBIL



CLIMATE REPORT 

NATIONAL WEATHER SERVICE BILLINGS MT

432 PM MDT MON MAY 10 2021



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



...THE BILLINGS MT CLIMATE SUMMARY FOR MAY 10 2021...

VALID TODAY AS OF 0400 PM LOCAL TIME.



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)                                                          

 TODAY                                                               

  MAXIMUM         51    259 PM  85    1940  65    -14       52       

  MINIMUM         39    349 AM  25    1967  42     -3       36       

  AVERAGE         45                        53     -8       44     



PRECIPITATION (IN)                                                    

  TODAY            T             1.51 2011   0.08  -0.08     0.00     

  MONTH TO DATE    0.86                      0.61   0.25     0.14     

  SINCE OCT 1      7.05                      6.89   0.16     4.32     

  SINCE JAN 1      4.09                      4.35  -0.26     2.38     



SNOWFALL (IN)                                                              

  TODAY           MM             5.7  1967   0.0   MM        0.0      

  MONTH TO DATE    T                         0.5   -0.5      0.0      

  SINCE MAR 1      5.0                      16.2  -11.2     17.4      

  SINCE JUL 1     53.0                      57.0   -4.0     54.3      

  SNOW DEPTH      MM                                                  



DEGREE DAYS                                                           

 HEATING                                                              

  TODAY           20                        12      8       21        

  MONTH TO DATE  143                       135      8      132        

  SINCE MAR 1   1470                      1551    -81     1652        

  SINCE JUL 1   6292                      6486   -194     6581        



 COOLING                                                              

  TODAY            0                         0      0        0        

  MONTH TO DATE    0                         0      0        0        

  SINCE MAR 1      4                         1      3        0        

  SINCE JAN 1      4                         1      3        0        

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





WIND (MPH)                                                            

  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NE (50)        

  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NE (60)        

  AVERAGE WIND SPEED     7.0                                        





SKY COVER                                                             

  POSSIBLE SUNSHINE  MM                                                 

  AVERAGE SKY COVER 0.9                                                 





WEATHER CONDITIONS                                                    

THE FOLLOWING WEATHER WAS RECORDED TODAY.                             

  LIGHT RAIN                                                          





RELATIVE HUMIDITY (PERCENT)

 HIGHEST    89           500 AM                                      

 LOWEST     46           300 PM                                      

 AVERAGE    68                                                        



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





THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW

                         NORMAL    RECORD    YEAR                     

 MAXIMUM TEMPERATURE (F)   65        89      1960                      

 MINIMUM TEMPERATURE (F)   42        20      1953SUNRISE AND SUNSET                                                    

MAY 10 2021...........SUNRISE   548 AM MDT   SUNSET   833 PM MDT     

MAY 11 2021...........SUNRISE   547 AM MDT   SUNSET   835 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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