Frost Dates for San Jose, 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. January 12
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. December 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 January 26
First Fall Frost December 12

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze December 31
First Fall Hard Freeze December 28
37.36°N, -121.92°W © OpenStreetMap

Growing Season

345 Days January 12 to December 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 10a

Learn more

Temperature

40° 60° 80°
51°
High: 60°
Avg: 51°
Low: 42°
Jan
53°
High: 62°
Avg: 53°
Low: 44°
Feb
56°
High: 66°
Avg: 56°
Low: 46°
Mar
59°
High: 69°
Avg: 59°
Low: 48°
Apr
63°
High: 74°
Avg: 63°
Low: 52°
May
67°
High: 79°
Avg: 67°
Low: 56°
Jun
70°
High: 81°
Avg: 70°
Low: 58°
Jul
70°
High: 81°
Avg: 70°
Low: 59°
Aug
69°
High: 81°
Avg: 69°
Low: 57°
Sep
64°
High: 76°
Avg: 64°
Low: 53°
Oct
56°
High: 66°
Avg: 56°
Low: 46°
Nov
51°
High: 60°
Avg: 51°
Low: 42°
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 1" 2" 3" 3.7"
3.5"
3.45"
Jan
3.4"
3.43"
Feb
3.7"
3.70"
Mar
3.0"
2.99"
Apr
0.8"
0.77"
May
0.0"
0.00"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.0"
0.00"
Sep
0.9"
0.90"
Oct
2.3"
2.26"
Nov
3.7"
3.72"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h11h12h13h14h15h14h13h12h11h10h9h
Jan: 7:09 AM – 4:51 PM · 9h 42m
Feb: 6:42 AM – 5:18 PM · 10h 37m
Mar: 6:09 AM – 5:51 PM · 11h 43m
Apr: 5:31 AM – 6:29 PM · 12h 58m
May: 4:60 AM – 7:00 PM · 14h 00m
Jun: 4:43 AM – 7:17 PM · 14h 34m
Jul: 4:50 AM – 7:10 PM · 14h 20m
Aug: 5:17 AM – 6:43 PM · 13h 26m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:30 AM – 5:30 PM · 11h 01m
Nov: 7:01 AM – 4:59 PM · 9h 57m
Dec: 7:17 AM – 4:43 PM · 9h 26m
Daylight Longest: 14h 35m · Shortest: 9h 25m

Nearby Stations

San Jose, CA January 2 - December 25 Moffett Federal Airfield, CA January 6 - December 23 Los Gatos, CA February 2 - December 6 Newark, CAJanuary 1 - December 27 Palo Alto, CA February 1 - December 7 Fremont, CA January 7 - December 22

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