922
CDUS45 KTFX 152342
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
442 PM MST MON DEC 15 2025
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 15 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 56 259 PM 62 1980 35 21 37
MINIMUM 39 152 AM -29 1964 13 26 24
AVERAGE 48 24 24 31
PRECIPITATION (IN)
TODAY 0.00 0.80 1901 0.02 -0.02 0.01
MONTH TO DATE 0.90 0.23 0.67 0.16
SINCE OCT 1 2.46 2.17 0.29 1.07
SINCE JAN 1 16.93 16.89 0.04 19.58
DEGREE DAYS
HEATING
TODAY 17 41 -24 34
MONTH TO DATE 543 593 -50 464
SINCE DEC 1 543 593 -50 464
SINCE JUL 1 2182 2684 -502 2155
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 30 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 18.2
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62
LOWEST 35
AVERAGE 49
......................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 61 1980
MINIMUM TEMPERATURE (F) 13 -31 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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