790  
CDUS45 KTFX 120735  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
135 AM MDT MON MAY 12 2025  
   
...............................  
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR MAY 11 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 75 418 PM 86 1993 61 14 73  
MINIMUM 50 836 PM 19 1953 36 14 36  
AVERAGE 63 48 15 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 1.02 1963 0.08 -0.04 0.00  
MONTH TO DATE 1.31 0.78 0.53 3.23  
SINCE OCT 1 5.48 6.88 -1.40 9.85  
SINCE JAN 1 4.11 4.43 -0.32 7.39  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 17 -15 10  
MONTH TO DATE 132 202 -70 248  
SINCE MAR 1 1697 1922 -225 1971  
SINCE JUL 1 7259 7688 -429 7203  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE MAR 1 2 0 2 0  
SINCE JAN 1 2 0 2 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 800 PM  
LOWEST 35 400 PM  
AVERAGE 61  
   
......................................................  
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 88 2001  
MINIMUM TEMPERATURE (F) 36 19 1966  
 
SUNRISE AND SUNSET  
MAY 12 2025...........SUNRISE 546 AM MDT SUNSET 844 PM MDT  
MAY 13 2025...........SUNRISE 544 AM MDT SUNSET 845 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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