Weather Almanac: Diablo, CA 94528

🗓️ Historical norms for July 2025

June August

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

July avg. precipitation

🌧️ 0.01"

July days below freezing

📉 ≈0.0 days

Average July lows 56°F – 64°F

USDA Zone

Annual extreme lows 25°F to 30°F

Last Spring Frost (36°F)

🌷 Mar 5

View full details

First Fall Frost (36°F)

🍂 Nov 22

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

Tue. July 1

🌅 5:49 a.m.

H: 73°F – 92°F

L: 50°F – 67°F

🌇 8:33 p.m.

Wed. July 2

🌅 5:50 a.m.

H: 73°F – 92°F

L: 50°F – 67°F

🌇 8:33 p.m.

Thu. July 3

🌅 5:50 a.m.

H: 74°F – 92°F

L: 50°F – 67°F

🌇 8:33 p.m.

Fri. July 4 Independence Day

🌅 5:51 a.m.

H: 74°F – 92°F

L: 50°F – 68°F

🌇 8:33 p.m.

Sat. July 5

🌅 5:51 a.m.

H: 74°F – 92°F

L: 51°F – 68°F

🌇 8:33 p.m.

Sun. July 6

🌅 5:52 a.m.

H: 75°F – 93°F

L: 51°F – 68°F

🌇 8:32 p.m.

Mon. July 7

🌅 5:52 a.m.

H: 75°F – 93°F

L: 51°F – 68°F

🌇 8:32 p.m.

Tue. July 8

🌅 5:53 a.m.

H: 75°F – 93°F

L: 51°F – 68°F

🌇 8:32 p.m.

Wed. July 9

🌅 5:54 a.m.

H: 75°F – 93°F

L: 51°F – 69°F

🌇 8:31 p.m.

Thu. July 10

🌅 5:54 a.m.

H: 76°F – 93°F

L: 52°F – 69°F

🌇 8:31 p.m.

Fri. July 11

🌅 5:55 a.m.

H: 76°F – 93°F

L: 52°F – 69°F

🌇 8:31 p.m.

Sat. July 12

🌅 5:56 a.m.

H: 76°F – 93°F

L: 52°F – 69°F

🌇 8:30 p.m.

Sun. July 13

🌅 5:56 a.m.

H: 76°F – 93°F

L: 52°F – 69°F

🌇 8:30 p.m.

Mon. July 14

🌅 5:57 a.m.

H: 76°F – 93°F

L: 52°F – 69°F

🌇 8:29 p.m.

Tue. July 15

🌅 5:58 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:29 p.m.

Wed. July 16

🌅 5:58 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:28 p.m.

Thu. July 17

🌅 5:59 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:28 p.m.

Fri. July 18

🌅 6:00 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:27 p.m.

Sat. July 19

🌅 6:01 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:26 p.m.

Sun. July 20

🌅 6:01 a.m.

H: 77°F – 94°F

L: 53°F – 70°F

🌇 8:26 p.m.

Mon. July 21

🌅 6:02 a.m.

H: 77°F – 94°F

L: 53°F – 70°F

🌇 8:25 p.m.

Tue. July 22

🌅 6:03 a.m.

H: 77°F – 94°F

L: 53°F – 70°F

🌇 8:24 p.m.

Wed. July 23

🌅 6:04 a.m.

H: 77°F – 94°F

L: 53°F – 70°F

🌇 8:24 p.m.

Thu. July 24

🌅 6:05 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:23 p.m.

Fri. July 25

🌅 6:05 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:22 p.m.

Sat. July 26

🌅 6:06 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:21 p.m.

Sun. July 27

🌅 6:07 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:20 p.m.

Mon. July 28

🌅 6:08 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:19 p.m.

Tue. July 29

🌅 6:09 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:19 p.m.

Wed. July 30

🌅 6:09 a.m.

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:18 p.m.

Thu. July 31

🌅 6:10 a.m.

F: 84°F / 57°F

H: 77°F – 94°F

L: 52°F – 69°F

🌇 8:17 p.m.

June August

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

Temperature climatic data from weather station: MT DIABLO JUNCTION (USC00045915)

Precipitation climatic data from weather station: MT DIABLO JUNCTION (USC00045915)

Agricultural climatic data from weather station: CONCORD BUCHANAN FLD (USW00023254)