407  
CDUS45 KTFX 160734  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
134 AM MDT TUE MAY 16 2023  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR MAY 15 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 359 PM 87 1931 63 14 67  
MINIMUM 42 448 AM 12 1910 37 5 34  
AVERAGE 60 50 10 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.87 1977 0.09 -0.09 0.00  
MONTH TO DATE 1.12 1.12 0.00 0.84  
SINCE OCT 1 8.86 7.22 1.64 5.84  
SINCE JAN 1 6.18 4.77 1.41 4.08  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 15 -10 14  
MONTH TO DATE 175 265 -90 272  
SINCE MAR 1 2132 1985 147 2159  
SINCE JUL 1 7958 7751 207 7562  
 
COOLING  
YESTERDAY 0 0 0 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 17 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 500 AM  
LOWEST 29 400 PM  
AVERAGE 59  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 87 1988  
MINIMUM TEMPERATURE (F) 38 26 1986  
 
SUNRISE AND SUNSET  
MAY 16 2023...........SUNRISE 541 AM MDT SUNSET 848 PM MDT  
MAY 17 2023...........SUNRISE 540 AM MDT SUNSET 849 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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