749  
CDUS45 KTFX 180733  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
133 AM MDT SAT APR 18 2026  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR APRIL 17 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM MM MM 81 1923 53 MM 39  
MINIMUM MM MM 4 1896 29 MM 23  
AVERAGE MM 41 MM 31  
 
PRECIPITATION (IN)  
YESTERDAY MM 0.90 1903 0.06 MM 0.05  
MONTH TO DATE 0.80 0.90 -0.10 1.08  
SINCE OCT 1 6.78 5.29 1.49 4.06  
SINCE JAN 1 4.19 2.84 1.35 2.69  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY MM 24 MM 34  
MONTH TO DATE 363 434 -71 432  
SINCE MAR 1 1201 1431 -230 1289  
SINCE JUL 1 5888 7197 -1309 6851  
 
COOLING  
YESTERDAY MM 0 MM 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
SKY COVER  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 81 1936  
MINIMUM TEMPERATURE (F) 29 5 1951  
 
SUNRISE AND SUNSET  
APRIL 18 2026.........SUNRISE 624 AM MDT SUNSET 811 PM MDT  
APRIL 19 2026.........SUNRISE 622 AM MDT SUNSET 812 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page Main Text Page