667
CDUS45 KTFX 210835
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MST SUN DEC 21 2025
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 20 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 39 1243 PM 60 1900 34 5 55
MINIMUM 19 140 AM -28 1990 13 6 29
AVERAGE 29 23 6 42
PRECIPITATION (IN)
YESTERDAY 0.00 0.40 1897 0.01 -0.01 0.00
MONTH TO DATE 1.01 0.31 0.70 0.20
SINCE OCT 1 2.57 2.25 0.32 1.11
SINCE JAN 1 17.04 16.97 0.07 19.62
SNOWFALL (IN)
YESTERDAY MM
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 36 42 -6 23
MONTH TO DATE 700 800 -100 633
SINCE DEC 1 700 800 -100 633
SINCE JUL 1 2339 2891 -552 2324
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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 16.8
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 100 AM
LOWEST 28 200 PM
AVERAGE 47
......................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 34 60 1900
MINIMUM TEMPERATURE (F) 13 -35 1989
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 801 AM MST SUNSET 431 PM MST
DECEMBER 22 2025......SUNRISE 802 AM MST SUNSET 432 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page