Weather Almanac: Sidney, MT 59270

🗓️ Historical norms for December 2025

November January

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

December avg. precipitation

🌧️ 0.52"

December days below freezing

📉 ≈30.1 days

Average December lows 2°F – 17°F

USDA Zone

4a

Annual extreme lows -30°F to -25°F

Last Spring Frost (36°F)

🌷 May 26

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First Fall Frost (36°F)

🍂 Sep 12

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Mon. December 1

🌅 7:23 a.m.

H: 20°F – 47°F

L: 2°F – 27°F

🌇 4:06 p.m.

Tue. December 2

🌅 7:25 a.m.

H: 19°F – 46°F

L: 1°F – 27°F

🌇 4:06 p.m.

Wed. December 3

🌅 7:26 a.m.

H: 19°F – 46°F

L: 0°F – 26°F

🌇 4:06 p.m.

Thu. December 4

🌅 7:27 a.m.

H: 18°F – 46°F

L: 0°F – 26°F

🌇 4:05 p.m.

Fri. December 5

🌅 7:28 a.m.

H: 18°F – 45°F

L: -1°F – 26°F

🌇 4:05 p.m.

Sat. December 6

🌅 7:29 a.m.

H: 17°F – 45°F

L: -1°F – 25°F

🌇 4:05 p.m.

Sun. December 7

🌅 7:30 a.m.

H: 17°F – 45°F

L: -2°F – 25°F

🌇 4:05 p.m.

Mon. December 8

🌅 7:31 a.m.

H: 17°F – 45°F

L: -2°F – 25°F

🌇 4:04 p.m.

Tue. December 9

🌅 7:32 a.m.

H: 16°F – 44°F

L: -3°F – 25°F

🌇 4:04 p.m.

Wed. December 10

🌅 7:33 a.m.

H: 16°F – 44°F

L: -3°F – 25°F

🌇 4:04 p.m.

Thu. December 11

🌅 7:34 a.m.

H: 15°F – 44°F

L: -4°F – 24°F

🌇 4:04 p.m.

Fri. December 12

🌅 7:35 a.m.

H: 15°F – 44°F

L: -4°F – 24°F

🌇 4:04 p.m.

Sat. December 13

🌅 7:36 a.m.

H: 15°F – 44°F

L: -4°F – 24°F

🌇 4:04 p.m.

Sun. December 14

🌅 7:37 a.m.

H: 14°F – 43°F

L: -5°F – 24°F

🌇 4:05 p.m.

Mon. December 15

🌅 7:37 a.m.

H: 14°F – 43°F

L: -5°F – 24°F

🌇 4:05 p.m.

Tue. December 16

🌅 7:38 a.m.

H: 14°F – 43°F

L: -6°F – 23°F

🌇 4:05 p.m.

Wed. December 17

🌅 7:39 a.m.

H: 13°F – 43°F

L: -6°F – 23°F

🌇 4:05 p.m.

Thu. December 18

🌅 7:40 a.m.

H: 13°F – 43°F

L: -6°F – 23°F

🌇 4:06 p.m.

Fri. December 19

🌅 7:40 a.m.

H: 13°F – 43°F

L: -7°F – 23°F

🌇 4:06 p.m.

Sat. December 20

🌅 7:41 a.m.

H: 13°F – 43°F

L: -7°F – 23°F

🌇 4:07 p.m.

Sun. December 21 Winter Solstice

🌅 7:41 a.m.

H: 12°F – 42°F

L: -7°F – 23°F

🌇 4:07 p.m.

Mon. December 22

🌅 7:42 a.m.

H: 12°F – 42°F

L: -8°F – 23°F

🌇 4:08 p.m.

Tue. December 23

🌅 7:42 a.m.

H: 12°F – 42°F

L: -8°F – 23°F

🌇 4:08 p.m.

Wed. December 24 Christmas Eve

🌅 7:43 a.m.

H: 12°F – 42°F

L: -8°F – 23°F

🌇 4:09 p.m.

Thu. December 25 Christmas Day

🌅 7:43 a.m.

H: 12°F – 42°F

L: -8°F – 23°F

🌇 4:09 p.m.

Fri. December 26

🌅 7:43 a.m.

H: 12°F – 42°F

L: -9°F – 23°F

🌇 4:10 p.m.

Sat. December 27

🌅 7:43 a.m.

H: 11°F – 42°F

L: -9°F – 23°F

🌇 4:11 p.m.

Sun. December 28

🌅 7:44 a.m.

H: 11°F – 42°F

L: -9°F – 23°F

🌇 4:12 p.m.

Mon. December 29

🌅 7:44 a.m.

H: 11°F – 42°F

L: -9°F – 23°F

🌇 4:13 p.m.

Tue. December 30

🌅 7:44 a.m.

H: 11°F – 42°F

L: -9°F – 23°F

🌇 4:13 p.m.

Wed. December 31

🌅 7:44 a.m.

H: 11°F – 42°F

L: -9°F – 23°F

🌇 4:14 p.m.

November January

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

Temperature climatic data from weather station: SIDNEY (USC00247560)

Precipitation climatic data from weather station: SIDNEY (USC00247560)

Agricultural climatic data from weather station: SIDNEY (USC00247560)