456
CDUS45 KTFX 150833
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
133 AM MST MON DEC 15 2025
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 14 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 48 1252 PM 60 1924 35 13 45
MINIMUM 35 1217 AM -29 2008 14 21 28
AVERAGE 42 24 18 37
PRECIPITATION (IN)
YESTERDAY 0.00 0.90 1906 0.01 -0.01 0.00
MONTH TO DATE 0.90 0.21 0.69 0.15
SINCE OCT 1 2.46 2.15 0.31 1.06
SINCE JAN 1 16.93 16.87 0.06 19.57
SNOWFALL (IN)
YESTERDAY MM
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 23 41 -18 28
MONTH TO DATE 526 552 -26 430
SINCE DEC 1 526 552 -26 430
SINCE JUL 1 2165 2643 -478 2121
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 163 229 -66 298
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WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 19.6
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 1200 AM
LOWEST 35 1100 AM
AVERAGE 46
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THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 62 1980
MINIMUM TEMPERATURE (F) 13 -29 1964
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 757 AM MST SUNSET 429 PM MST
DECEMBER 16 2025......SUNRISE 758 AM MST SUNSET 429 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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