Great Falls Climatic Report

CDUS45 KTFX 120735

CLIGTF



CLIMATE REPORT 

NATIONAL WEATHER SERVICE GREAT FALLS MT

135 AM MDT TUE MAY 12 2026



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...THE GREAT FALLS MT CLIMATE SUMMARY FOR MAY 11 2026...



CLIMATE NORMAL PERIOD 1991 TO 2020

CLIMATE RECORD PERIOD 1886 TO 2026





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL           

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

TEMPERATURE (F)                                                          

 YESTERDAY                                                           

  MAXIMUM         75    357 PM  88    1960  63     12       75       

  MINIMUM         45    525 AM  23    1983  37      8       47       

  AVERAGE         60                        50     10       61     



PRECIPITATION (IN)                                                    

  YESTERDAY        0.00          1.40 2018   0.07  -0.07     0.07     

  MONTH TO DATE    0.31                      0.63  -0.32     1.38     

  SINCE OCT 1      6.03                      6.46  -0.43     6.14     

  SINCE JAN 1      4.19                      4.18   0.01     5.06     



SNOWFALL (IN)                                                              

  YESTERDAY        0.0           3.6  2014   0.1   -0.1      0.0      

  MONTH TO DATE    T                         1.1   -1.1      0.0      

  SINCE MAR 1     25.0                      20.6    4.4      5.2      

  SINCE JUL 1     41.6                      65.0  -23.4     47.2      

  SNOW DEPTH       0                                                 



DEGREE DAYS                                                           

 HEATING                                                              

  YESTERDAY        5                        15    -10        4        

  MONTH TO DATE  126                       184    -58      103        

  SINCE MAR 1   1562                      1820   -258     1503        

  SINCE JUL 1   5805                      7290  -1485     6802        



 COOLING                                                              

  YESTERDAY        0                         0      0        0        

  MONTH TO DATE    0                         0      0        2        

  SINCE MAR 1      1                         0      1        2        

  SINCE JAN 1      1                         0      1        2        

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WIND (MPH)                                                            

  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (280)       

  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     W (280)       

  AVERAGE WIND SPEED    12.0                                        





SKY COVER                                                             

  AVERAGE SKY COVER 0.1                                                 





WEATHER CONDITIONS                                                    

THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         

  NO SIGNIFICANT WEATHER WAS OBSERVED.                                  





RELATIVE HUMIDITY (PERCENT)

 HIGHEST    63           500 AM                                      

 LOWEST     15           400 PM                                      

 AVERAGE    39                                                        



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THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                     

 MAXIMUM TEMPERATURE (F)   64        90      2001                      

 MINIMUM TEMPERATURE (F)   37        22      1943                      





SUNRISE AND SUNSET                                                    

MAY 122026...........SUNRISE   552 AM MDT   SUNSET   852 PM MDT     

MAY 13 2026...........SUNRISE   551 AM MDT   SUNSET   854 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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