Weather Almanac: Rosemead, CA 91770

🗓️ Historical norms for December 2025

November January

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

December avg. precipitation

🌧️ 2.42"

December days below freezing

📉 ≈0.3 days

Average December lows 42°F – 46°F

USDA Zone

10b

Annual extreme lows 35°F to 40°F

Last Spring Frost (36°F)

🌷 Feb 6

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First Fall Frost (36°F)

🍂 Dec 12

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📚 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

Mon. December 1

🌅 6:40 a.m.

H: 61°F – 76°F

L: 40°F – 51°F

🌇 4:42 p.m.

Tue. December 2

🌅 6:40 a.m.

H: 61°F – 75°F

L: 40°F – 51°F

🌇 4:42 p.m.

Wed. December 3

🌅 6:41 a.m.

H: 61°F – 75°F

L: 40°F – 51°F

🌇 4:42 p.m.

Thu. December 4

🌅 6:42 a.m.

H: 61°F – 75°F

L: 40°F – 50°F

🌇 4:42 p.m.

Fri. December 5

🌅 6:43 a.m.

H: 60°F – 75°F

L: 40°F – 50°F

🌇 4:42 p.m.

Sat. December 6

🌅 6:44 a.m.

H: 60°F – 75°F

L: 39°F – 50°F

🌇 4:42 p.m.

Sun. December 7

🌅 6:45 a.m.

H: 60°F – 75°F

L: 39°F – 50°F

🌇 4:42 p.m.

Mon. December 8

🌅 6:45 a.m.

H: 60°F – 74°F

L: 39°F – 50°F

🌇 4:42 p.m.

Tue. December 9

🌅 6:46 a.m.

H: 60°F – 74°F

L: 39°F – 50°F

🌇 4:43 p.m.

Wed. December 10

🌅 6:47 a.m.

H: 60°F – 74°F

L: 39°F – 50°F

🌇 4:43 p.m.

Thu. December 11

🌅 6:48 a.m.

H: 59°F – 74°F

L: 39°F – 50°F

🌇 4:43 p.m.

Fri. December 12

🌅 6:48 a.m.

H: 59°F – 74°F

L: 39°F – 50°F

🌇 4:43 p.m.

Sat. December 13

🌅 6:49 a.m.

H: 59°F – 74°F

L: 39°F – 50°F

🌇 4:44 p.m.

Sun. December 14

🌅 6:50 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:44 p.m.

Mon. December 15

🌅 6:50 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:44 p.m.

Tue. December 16

🌅 6:51 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:44 p.m.

Wed. December 17

🌅 6:51 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:45 p.m.

Thu. December 18

🌅 6:52 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:45 p.m.

Fri. December 19

🌅 6:53 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:46 p.m.

Sat. December 20

🌅 6:53 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:46 p.m.

Sun. December 21 Winter Solstice

🌅 6:54 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:47 p.m.

Mon. December 22

🌅 6:54 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:47 p.m.

Tue. December 23

🌅 6:55 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:48 p.m.

Wed. December 24 Christmas Eve

🌅 6:55 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:48 p.m.

Thu. December 25 Christmas Day

🌅 6:55 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:49 p.m.

Fri. December 26

🌅 6:56 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:50 p.m.

Sat. December 27

🌅 6:56 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:50 p.m.

Sun. December 28

🌅 6:57 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:51 p.m.

Mon. December 29

🌅 6:57 a.m.

H: 59°F – 74°F

L: 38°F – 50°F

🌇 4:52 p.m.

Tue. December 30

🌅 6:57 a.m.

H: 59°F – 75°F

L: 38°F – 50°F

🌇 4:52 p.m.

Wed. December 31

🌅 6:57 a.m.

H: 59°F – 75°F

L: 38°F – 50°F

🌇 4:53 p.m.

November January

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

Temperature climatic data from weather station: SAN GABRIEL FIRE DEPT (USC00047785)

Precipitation climatic data from weather station: SAN GABRIEL FIRE DEPT (USC00047785)

Agricultural climatic data from weather station: SAN GABRIEL FIRE DEPT (USC00047785)