931
CDUS45 KTFX 182340
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MST THU DEC 18 2025
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR DECEMBER 18 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 38 243 PM 58 1917 35 3 53
1979
MINIMUM 15 230 AM -27 1924 16 -1 18
AVERAGE 27 25 2 36
PRECIPITATION (IN)
TODAY 0.00 0.30 1990 0.02 -0.02 0.00
MONTH TO DATE 0.31 0.30 0.01 T
SINCE OCT 1 1.77 2.05 -0.28 0.60
SINCE JAN 1 12.10 14.53 -2.43 13.35
DEGREE DAYS
HEATING
TODAY 38 40 -2 29
MONTH TO DATE 551 687 -136 542
SINCE DEC 1 551 687 -136 542
SINCE JUL 1 1979 2627 -648 2111
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 333 310 23 385
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 14.5
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 1200 AM
LOWEST 37 100 PM
AVERAGE 61
......................................................
THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 59 2004
MINIMUM TEMPERATURE (F) 15 -25 1990
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 809 AM MST SUNSET 436 PM MST
DECEMBER 19 2025......SUNRISE 809 AM MST SUNSET 436 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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