Weather Almanac: Great Falls, MT 59401

🗓️ Historical norms for December 2025

November January

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

December avg. precipitation

🌧️ 0.50"

December days below freezing

📉 ≈25.2 days

Average December lows ≈17.6°F

USDA Zone

Annual extreme lows -25°F to -20°F

Last Spring Frost (36°F)

🌷 Always

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First Fall Frost (36°F)

🍂 Always

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Mon. December 1

🌅 7:52 a.m.

H: ≈36.5°F

L: ≈19.5°F

🌇 4:35 p.m.

Tue. December 2

🌅 7:53 a.m.

H: ≈36.1°F

L: ≈19.2°F

🌇 4:35 p.m.

Wed. December 3

🌅 7:54 a.m.

H: ≈35.9°F

L: ≈18.9°F

🌇 4:35 p.m.

Thu. December 4

🌅 7:56 a.m.

H: ≈35.6°F

L: ≈18.7°F

🌇 4:34 p.m.

Fri. December 5

🌅 7:57 a.m.

H: ≈35.4°F

L: ≈18.4°F

🌇 4:34 p.m.

Sat. December 6

🌅 7:58 a.m.

H: ≈35.3°F

L: ≈18.2°F

🌇 4:34 p.m.

Sun. December 7

🌅 7:59 a.m.

H: ≈35.1°F

L: ≈18.0°F

🌇 4:34 p.m.

Mon. December 8

🌅 8:00 a.m.

H: ≈35.0°F

L: ≈17.8°F

🌇 4:33 p.m.

Tue. December 9

🌅 8:01 a.m.

H: ≈35.0°F

L: ≈17.7°F

🌇 4:33 p.m.

Wed. December 10

🌅 8:02 a.m.

H: ≈34.9°F

L: ≈17.5°F

🌇 4:33 p.m.

Thu. December 11

🌅 8:03 a.m.

H: ≈34.9°F

L: ≈17.4°F

🌇 4:33 p.m.

Fri. December 12

🌅 8:04 a.m.

H: ≈35.0°F

L: ≈17.3°F

🌇 4:33 p.m.

Sat. December 13

🌅 8:04 a.m.

H: ≈35.0°F

L: ≈17.2°F

🌇 4:34 p.m.

Sun. December 14

🌅 8:05 a.m.

H: ≈35.1°F

L: ≈17.2°F

🌇 4:34 p.m.

Mon. December 15

🌅 8:06 a.m.

H: ≈35.2°F

L: ≈17.1°F

🌇 4:34 p.m.

Tue. December 16

🌅 8:07 a.m.

H: ≈35.3°F

L: ≈17.1°F

🌇 4:34 p.m.

Wed. December 17

🌅 8:07 a.m.

H: ≈35.5°F

L: ≈17.1°F

🌇 4:34 p.m.

Thu. December 18

🌅 8:08 a.m.

H: ≈35.6°F

L: ≈17.1°F

🌇 4:35 p.m.

Fri. December 19

🌅 8:09 a.m.

H: ≈35.8°F

L: ≈17.1°F

🌇 4:35 p.m.

Sat. December 20

🌅 8:09 a.m.

H: ≈36.0°F

L: ≈17.1°F

🌇 4:36 p.m.

Sun. December 21 Winter Solstice

🌅 8:10 a.m.

H: ≈36.2°F

L: ≈17.1°F

🌇 4:36 p.m.

Mon. December 22

🌅 8:10 a.m.

H: ≈36.4°F

L: ≈17.1°F

🌇 4:37 p.m.

Tue. December 23

🌅 8:11 a.m.

H: ≈36.5°F

L: ≈17.2°F

🌇 4:37 p.m.

Wed. December 24 Christmas Eve

🌅 8:11 a.m.

H: ≈36.7°F

L: ≈17.2°F

🌇 4:38 p.m.

Thu. December 25 Christmas Day

🌅 8:11 a.m.

H: ≈36.9°F

L: ≈17.2°F

🌇 4:39 p.m.

Fri. December 26

🌅 8:12 a.m.

H: ≈37.1°F

L: ≈17.3°F

🌇 4:39 p.m.

Sat. December 27

🌅 8:12 a.m.

H: ≈37.3°F

L: ≈17.3°F

🌇 4:40 p.m.

Sun. December 28

🌅 8:12 a.m.

H: ≈37.4°F

L: ≈17.4°F

🌇 4:41 p.m.

Mon. December 29

🌅 8:12 a.m.

H: ≈37.6°F

L: ≈17.4°F

🌇 4:42 p.m.

Tue. December 30

🌅 8:12 a.m.

H: ≈37.7°F

L: ≈17.4°F

🌇 4:43 p.m.

Wed. December 31

🌅 8:12 a.m.

H: ≈37.9°F

L: ≈17.5°F

🌇 4:43 p.m.

November January

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature climatic data from weather station: GREAT FALLS 16ST (USC00243749)

Precipitation climatic data from weather station: GREAT FALLS 16ST (USC00243749)

Agricultural climatic data from weather station: GREAT FALLS INTL AP (USW00024143)