Weather Almanac: Simi Valley, CA 93063

🗓️ Historical norms for January 2026

December February

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

January avg. precipitation

🌧️ 3.78"

January days below freezing

📉 ≈0.4 days

Average January lows 41°F – 47°F

USDA Zone

10a

Annual extreme lows 30°F to 35°F

Last Spring Frost (36°F)

🌷 Apr 12

View full details

First Fall Frost (36°F)

🍂 Nov 9

View full details

Book Recommendations (ads!)

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

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

📚 California Gardener's Handbook: Your Complete Guide: Select - Plan - Plant - Maintain - Problem-solve

F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Thu. January 1 New Year's Day

🌅 7:01 a.m.

H: 54°F – 70°F

L: 39°F – 51°F

🌇 4:56 p.m.

Fri. January 2

🌅 7:01 a.m.

H: 54°F – 70°F

L: 39°F – 51°F

🌇 4:56 p.m.

Sat. January 3

🌅 7:01 a.m.

H: 54°F – 70°F

L: 39°F – 51°F

🌇 4:57 p.m.

Sun. January 4

🌅 7:01 a.m.

H: 54°F – 70°F

L: 39°F – 51°F

🌇 4:58 p.m.

Mon. January 5

🌅 7:01 a.m.

H: 54°F – 70°F

L: 39°F – 51°F

🌇 4:59 p.m.

Tue. January 6 Epiphany

🌅 7:01 a.m.

H: 55°F – 70°F

L: 39°F – 51°F

🌇 5:00 p.m.

Wed. January 7

🌅 7:01 a.m.

H: 55°F – 70°F

L: 39°F – 51°F

🌇 5:00 p.m.

Thu. January 8

🌅 7:01 a.m.

H: 55°F – 70°F

L: 38°F – 51°F

🌇 5:01 p.m.

Fri. January 9

🌅 7:01 a.m.

H: 55°F – 70°F

L: 38°F – 51°F

🌇 5:02 p.m.

Sat. January 10

🌅 7:01 a.m.

H: 55°F – 70°F

L: 38°F – 51°F

🌇 5:03 p.m.

Sun. January 11

🌅 7:01 a.m.

H: 55°F – 70°F

L: 38°F – 51°F

🌇 5:04 p.m.

Mon. January 12

🌅 7:01 a.m.

H: 55°F – 70°F

L: 38°F – 51°F

🌇 5:05 p.m.

Tue. January 13

🌅 7:01 a.m.

H: 55°F – 70°F

L: 38°F – 50°F

🌇 5:06 p.m.

Wed. January 14

🌅 7:00 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:07 p.m.

Thu. January 15

🌅 7:00 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:08 p.m.

Fri. January 16

🌅 7:00 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:09 p.m.

Sat. January 17

🌅 7:00 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:10 p.m.

Sun. January 18

🌅 6:59 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:11 p.m.

Mon. January 19 Martin Luther King Jr. Day

🌅 6:59 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:12 p.m.

Tue. January 20

🌅 6:58 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:13 p.m.

Wed. January 21

🌅 6:58 a.m.

H: 55°F – 71°F

L: 38°F – 50°F

🌇 5:14 p.m.

Thu. January 22

🌅 6:58 a.m.

H: 55°F – 71°F

L: 37°F – 50°F

🌇 5:15 p.m.

Fri. January 23

🌅 6:57 a.m.

H: 55°F – 71°F

L: 37°F – 50°F

🌇 5:15 p.m.

Sat. January 24

🌅 6:57 a.m.

H: 55°F – 71°F

L: 37°F – 50°F

🌇 5:16 p.m.

Sun. January 25

🌅 6:56 a.m.

H: 55°F – 71°F

L: 37°F – 50°F

🌇 5:17 p.m.

Mon. January 26

🌅 6:56 a.m.

H: 55°F – 71°F

L: 37°F – 49°F

🌇 5:18 p.m.

Tue. January 27

🌅 6:55 a.m.

H: 55°F – 71°F

L: 37°F – 49°F

🌇 5:19 p.m.

Wed. January 28

🌅 6:54 a.m.

H: 55°F – 71°F

L: 37°F – 49°F

🌇 5:20 p.m.

Thu. January 29

🌅 6:54 a.m.

H: 55°F – 71°F

L: 37°F – 49°F

🌇 5:21 p.m.

Fri. January 30

🌅 6:53 a.m.

H: 55°F – 71°F

L: 37°F – 49°F

🌇 5:22 p.m.

Sat. January 31

🌅 6:52 a.m.

H: 55°F – 71°F

L: 37°F – 49°F

🌇 5:23 p.m.

December February

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

Temperature climatic data from weather station: NEWHALL 5NW (USC00046161)

Precipitation climatic data from weather station: CHATSWORTH FC 24 F (USC00041680)

Agricultural climatic data from weather station: CANOGA PARK PIERCE CLG (USC00041484)