Frost Dates for Martinez Wtp, CA

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. February 28
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 22
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost March 11
First Fall Frost November 15

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze January 23
First Fall Hard Freeze December 9
38.01°N, -122.11°W © OpenStreetMap

Growing Season

268 Days February 28 to November 22

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 9b

Learn more

Temperature

30° 50° 70° 90°
46°
High: 56°
Avg: 46°
Low: 35°
Jan
49°
High: 61°
Avg: 49°
Low: 37°
Feb
53°
High: 66°
Avg: 53°
Low: 40°
Mar
57°
High: 71°
Avg: 57°
Low: 43°
Apr
62°
High: 78°
Avg: 62°
Low: 46°
May
67°
High: 85°
Avg: 67°
Low: 50°
Jun
70°
High: 88°
Avg: 70°
Low: 51°
Jul
69°
High: 87°
Avg: 69°
Low: 51°
Aug
67°
High: 84°
Avg: 67°
Low: 50°
Sep
61°
High: 76°
Avg: 61°
Low: 46°
Oct
52°
High: 64°
Avg: 52°
Low: 39°
Nov
46°
High: 57°
Avg: 46°
Low: 35°
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 2" 4" 6" 6.8"
6.6"
6.64"
Jan
6.3"
6.34"
Feb
6.1"
6.08"
Mar
4.1"
4.06"
Apr
1.6"
1.65"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
2.1"
2.10"
Oct
5.0"
4.98"
Nov
6.8"
6.85"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h14h15h14h13h12h11h10h9h
Jan: 7:11 AM – 4:49 PM · 9h 38m
Feb: 6:43 AM – 5:17 PM · 10h 35m
Mar: 6:09 AM – 5:51 PM · 11h 42m
Apr: 5:30 AM – 6:30 PM · 12h 60m
May: 4:58 AM – 7:02 PM · 14h 03m
Jun: 4:41 AM – 7:19 PM · 14h 37m
Jul: 4:48 AM – 7:12 PM · 14h 24m
Aug: 5:16 AM – 6:44 PM · 13h 28m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:30 AM – 5:30 PM · 10h 59m
Nov: 7:03 AM – 4:57 PM · 9h 54m
Dec: 7:19 AM – 4:41 PM · 9h 22m
Daylight Longest: 14h 39m · Shortest: 9h 21m

Nearby Stations

Concord Wwtp, CA January 7 - December 19 Concord Buchanan Fld, CA January 9 - December 14 Vallejo, CA January 17 - December 27 Berkeley, CAJanuary 3 - January 1 Mt Diablo Junction, CA March 8 - December 22 Richmond, CAJanuary 4 - January 2

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview