CDUS45 KTFX 182240
CLIHLN

CLIMATE REPORT 
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT MON MAY 18 2026

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

...THE HELENA MT CLIMATE SUMMARY FOR MAY 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         54    250 PM  91    2006  67    -13       54       
  MINIMUM         33    352 AM  26    1903  42     -9       46       
  AVERAGE         44                        55    -11       50     

PRECIPITATION (IN)                                                    
  TODAY            0.00          1.10 1944   0.06  -0.06     0.42     
  MONTH TO DATE    0.10                      0.91  -0.81     3.37     
  SINCE OCT 1      6.19                      5.09   1.10     7.04     
  SINCE JAN 1      3.52                      3.26   0.26     6.28     

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY           21                        10     11       15        
  MONTH TO DATE  202                       236    -34      179        
  SINCE MAR 1   1502                      1748   -246     1413        
  SINCE JUL 1   5794                      7242  -1448     6485        

 COOLING                                                              
  TODAY            0                         0      0        0        
  MONTH TO DATE    1                         0      1        4        
  SINCE MAR 1      1                         0      1        4        
  SINCE JAN 1      1                         0      1        4        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NW (310)       
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (20)        
  AVERAGE WIND SPEED     6.3                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.8                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1200 AM                                      
 LOWEST     30           200 PM                                      
 AVERAGE    58                                                        

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


THE HELENA MT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   68        90      1954                      
 MINIMUM TEMPERATURE (F)   43        24      1997                      


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   550 AM MDT   SUNSET   859 PM MDT     
MAY 19 2026...........SUNRISE   549 AM MDT   SUNSET   900 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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