Weather Almanac: Hillsboro, OR 97123

🗓️ Historical norms for January 2026

December February

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

January avg. precipitation

🌧️ 5.71"

January days below freezing

📉 ≈6.7 days

Average January lows 34°F – 40°F

USDA Zone

Annual extreme lows 15°F to 20°F

Last Spring Frost (36°F)

🌷 Apr 27

View full details

First Fall Frost (36°F)

🍂 Oct 18

View full details

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

Thu. January 1 New Year's Day

🌅 7:51 a.m.

H: 40°F – 53°F

L: 29°F – 44°F

🌇 4:39 p.m.

Fri. January 2

🌅 7:51 a.m.

H: 40°F – 53°F

L: 29°F – 44°F

🌇 4:40 p.m.

Sat. January 3

🌅 7:51 a.m.

H: 40°F – 53°F

L: 29°F – 44°F

🌇 4:41 p.m.

Sun. January 4

🌅 7:51 a.m.

H: 40°F – 53°F

L: 29°F – 44°F

🌇 4:42 p.m.

Mon. January 5

🌅 7:51 a.m.

H: 40°F – 53°F

L: 29°F – 44°F

🌇 4:43 p.m.

Tue. January 6 Epiphany

🌅 7:51 a.m.

H: 41°F – 53°F

L: 30°F – 44°F

🌇 4:44 p.m.

Wed. January 7

🌅 7:51 a.m.

H: 41°F – 53°F

L: 30°F – 44°F

🌇 4:45 p.m.

Thu. January 8

🌅 7:50 a.m.

H: 41°F – 53°F

L: 30°F – 44°F

🌇 4:46 p.m.

Fri. January 9

🌅 7:50 a.m.

H: 41°F – 54°F

L: 30°F – 44°F

🌇 4:48 p.m.

Sat. January 10

🌅 7:50 a.m.

H: 41°F – 54°F

L: 30°F – 44°F

🌇 4:49 p.m.

Sun. January 11

🌅 7:49 a.m.

H: 41°F – 54°F

L: 30°F – 44°F

🌇 4:50 p.m.

Mon. January 12

🌅 7:49 a.m.

H: 42°F – 54°F

L: 30°F – 44°F

🌇 4:51 p.m.

Tue. January 13

🌅 7:48 a.m.

H: 42°F – 54°F

L: 30°F – 44°F

🌇 4:52 p.m.

Wed. January 14

🌅 7:48 a.m.

H: 42°F – 54°F

L: 30°F – 44°F

🌇 4:54 p.m.

Thu. January 15

🌅 7:47 a.m.

H: 42°F – 54°F

L: 30°F – 44°F

🌇 4:55 p.m.

Fri. January 16

🌅 7:47 a.m.

H: 42°F – 54°F

L: 30°F – 44°F

🌇 4:56 p.m.

Sat. January 17

🌅 7:46 a.m.

H: 42°F – 55°F

L: 31°F – 45°F

🌇 4:58 p.m.

Sun. January 18

🌅 7:45 a.m.

H: 42°F – 55°F

L: 31°F – 45°F

🌇 4:59 p.m.

Mon. January 19 Martin Luther King Jr. Day

🌅 7:45 a.m.

H: 43°F – 55°F

L: 30°F – 45°F

🌇 5:00 p.m.

Tue. January 20

🌅 7:44 a.m.

H: 43°F – 55°F

L: 30°F – 45°F

🌇 5:02 p.m.

Wed. January 21

🌅 7:43 a.m.

H: 43°F – 55°F

L: 30°F – 45°F

🌇 5:03 p.m.

Thu. January 22

🌅 7:42 a.m.

H: 43°F – 55°F

L: 30°F – 45°F

🌇 5:04 p.m.

Fri. January 23

🌅 7:41 a.m.

H: 43°F – 56°F

L: 30°F – 45°F

🌇 5:06 p.m.

Sat. January 24

🌅 7:41 a.m.

H: 43°F – 56°F

L: 30°F – 45°F

🌇 5:07 p.m.

Sun. January 25

🌅 7:40 a.m.

H: 43°F – 56°F

L: 30°F – 45°F

🌇 5:09 p.m.

Mon. January 26

🌅 7:39 a.m.

H: 43°F – 56°F

L: 30°F – 45°F

🌇 5:10 p.m.

Tue. January 27

🌅 7:38 a.m.

H: 44°F – 56°F

L: 30°F – 45°F

🌇 5:11 p.m.

Wed. January 28

🌅 7:37 a.m.

H: 44°F – 56°F

L: 30°F – 45°F

🌇 5:13 p.m.

Thu. January 29

🌅 7:35 a.m.

H: 44°F – 57°F

L: 30°F – 45°F

🌇 5:14 p.m.

Fri. January 30

🌅 7:34 a.m.

H: 44°F – 57°F

L: 30°F – 45°F

🌇 5:16 p.m.

Sat. January 31

🌅 7:33 a.m.

H: 44°F – 57°F

L: 30°F – 44°F

🌇 5:17 p.m.

December February

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

Temperature climatic data from weather station: HILLSBORO (USC00353908)

Precipitation climatic data from weather station: HILLSBORO (USC00353908)

Agricultural climatic data from weather station: HILLSBORO (USC00353908)