Weather Almanac: Cascadia, OR 97329

🗓️ Historical norms for December 2025

November January

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

December avg. precipitation

🌧️ 9.33"

December days below freezing

📉 ≈13.8 days

Average December lows 30°F – 35°F

USDA Zone

Annual extreme lows 15°F to 20°F

Last Spring Frost (36°F)

🌷 Jun 7

View full details

First Fall Frost (36°F)

🍂 Sep 19

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Book Recommendations (ads!)

📚 Pacific Northwest Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 Gardening in the Pacific Northwest: The Complete Homeowner's Guide

📚 Growing Vegetables West of the Cascades, 35th Anniversary Edition: The Complete Guide to Organic Gardening

F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Mon. December 1

🌅 7:25 a.m.

H: 40°F – 51°F

L: 27°F – 40°F

🌇 4:31 p.m.

Tue. December 2

🌅 7:26 a.m.

H: 40°F – 51°F

L: 27°F – 40°F

🌇 4:30 p.m.

Wed. December 3

🌅 7:27 a.m.

H: 39°F – 51°F

L: 27°F – 40°F

🌇 4:30 p.m.

Thu. December 4

🌅 7:29 a.m.

H: 39°F – 51°F

L: 27°F – 40°F

🌇 4:30 p.m.

Fri. December 5

🌅 7:30 a.m.

H: 39°F – 50°F

L: 27°F – 40°F

🌇 4:30 p.m.

Sat. December 6

🌅 7:31 a.m.

H: 39°F – 50°F

L: 27°F – 40°F

🌇 4:29 p.m.

Sun. December 7

🌅 7:32 a.m.

H: 38°F – 50°F

L: 26°F – 40°F

🌇 4:29 p.m.

Mon. December 8

🌅 7:32 a.m.

H: 38°F – 50°F

L: 26°F – 39°F

🌇 4:29 p.m.

Tue. December 9

🌅 7:33 a.m.

H: 38°F – 50°F

L: 26°F – 39°F

🌇 4:29 p.m.

Wed. December 10

🌅 7:34 a.m.

H: 38°F – 50°F

L: 26°F – 39°F

🌇 4:29 p.m.

Thu. December 11

🌅 7:35 a.m.

H: 38°F – 50°F

L: 26°F – 39°F

🌇 4:29 p.m.

Fri. December 12

🌅 7:36 a.m.

H: 38°F – 49°F

L: 26°F – 39°F

🌇 4:29 p.m.

Sat. December 13

🌅 7:37 a.m.

H: 38°F – 49°F

L: 26°F – 39°F

🌇 4:30 p.m.

Sun. December 14

🌅 7:38 a.m.

H: 37°F – 49°F

L: 26°F – 39°F

🌇 4:30 p.m.

Mon. December 15

🌅 7:38 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:30 p.m.

Tue. December 16

🌅 7:39 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:30 p.m.

Wed. December 17

🌅 7:40 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:31 p.m.

Thu. December 18

🌅 7:40 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:31 p.m.

Fri. December 19

🌅 7:41 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:31 p.m.

Sat. December 20

🌅 7:41 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:32 p.m.

Sun. December 21 Winter Solstice

🌅 7:42 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:32 p.m.

Mon. December 22

🌅 7:42 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:33 p.m.

Tue. December 23

🌅 7:43 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:34 p.m.

Wed. December 24 Christmas Eve

🌅 7:43 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:34 p.m.

Thu. December 25 Christmas Day

🌅 7:44 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:35 p.m.

Fri. December 26

🌅 7:44 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:35 p.m.

Sat. December 27

🌅 7:44 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:36 p.m.

Sun. December 28

🌅 7:44 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:37 p.m.

Mon. December 29

🌅 7:45 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:38 p.m.

Tue. December 30

🌅 7:45 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:39 p.m.

Wed. December 31

🌅 7:45 a.m.

H: 37°F – 49°F

L: 25°F – 39°F

🌇 4:39 p.m.

November January

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

Temperature climatic data from weather station: CASCADIA (USC00351433)

Precipitation climatic data from weather station: CASCADIA (USC00351433)

Agricultural climatic data from weather station: BELKNAP SPRINGS 8 N (USC00350652)