332
CDUS45 KTFX 172340
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MST WED DEC 17 2025
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 17 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 52 956 AM 65 1925 34 18 27
MINIMUM 38 359 PM -30 1924 13 25 14
AVERAGE 45 24 21 21
PRECIPITATION (IN)
TODAY 0.11 0.28 1967 0.01 0.10 T
MONTH TO DATE 1.01 0.26 0.75 0.20
SINCE OCT 1 2.57 2.20 0.37 1.11
SINCE JAN 1 17.04 16.92 0.12 19.62
DEGREE DAYS
HEATING
TODAY 20 41 -21 44
MONTH TO DATE 581 675 -94 547
SINCE DEC 1 581 675 -94 547
SINCE JUL 1 2220 2766 -546 2238
COOLING
TODAY 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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 54 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 71 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 24.2
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93
LOWEST 32
AVERAGE 63
......................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 62 1979
MINIMUM TEMPERATURE (F) 13 -37 1924
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 759 AM MST SUNSET 430 PM MST
DECEMBER 18 2025......SUNRISE 759 AM MST SUNSET 430 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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