Eagle Mtn, CA Frost Dates & Growing Season

The two dates every Eagle Mtn garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Jan 10
~50% chance of frost after
First fall frost
Jan 8
~50% chance of frost before
Growing season
363 days
frost-free stretch
USDA zone
≈ 10b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Dec 30 Jan 10 Feb 14
First fall frost Feb 10 Jan 8 Dec 26

Computed from NOAA 1991–2020 climate normals at the EAGLE MTN station. "Safe" means frost past that date happens only about one year in ten. Your exact garden can still run days either way with elevation and terrain — check your own ZIP with the frost date lookup.

Planting windows for Eagle Mtn

Computed from Eagle Mtn's own frost dates. Click any crop for the full zone-10 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Nov 15 – Nov 29 Jan 17 – Jan 24
🫑 Peppers Nov 1 – Nov 15 Jan 24 – Jan 31
🥬 Lettuce Nov 29 – Dec 13 Dec 13 – Dec 27 Dec 13 – Jan 10
🫛 Peas Nov 29 – Dec 13
🥕 Carrots Dec 20 – Jan 10
🥦 Broccoli Nov 22 – Dec 6 Dec 20 – Jan 3
🥬 Kale Nov 29 – Dec 13 Dec 13 – Dec 27 Dec 13 – Dec 27
🥒 Cucumbers Dec 13 – Dec 20 Jan 17 – Jan 24 Jan 17 – Jan 24
🥒 Zucchini Dec 13 – Dec 20 Jan 17 – Jan 24 Jan 17 – Jan 24
🫘 Green Beans (Bush) Jan 17 – Jan 24
🌽 Sweet Corn Jan 17 – Jan 24
🌿 Basil Nov 29 – Dec 13 Jan 17 – Jan 24 Jan 24 – Jan 31
🧄 Garlic Fall: Nov 27 – Dec 25

Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use Eagle Mtn's dates automatically after a lookup.

Reading the season in Eagle Mtn

With roughly 363 frost-free days, Eagle Mtn gardens fit long-season crops — melons, winter squash, sweet potatoes — with room left for spring and fall rounds of greens and roots. The first frost around Jan 8 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Eagle Mtn, CA?

The average last spring frost in Eagle Mtn is around Jan 10, based on 1991–2020 climate normals. That's a median — about half of years see a later frost, so tender crops are safest going out a week or two after this date.

When is the first frost in Eagle Mtn, CA?

The average first fall frost in Eagle Mtn arrives around Jan 8. Crops still in the garden need to mature before then, and frost-tender plants need harvesting or protection as the date approaches.

How long is the growing season in Eagle Mtn?

About 363 frost-free days on average, from Jan 10 to Jan 8. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Eagle Mtn in?

USDA zone 10b on the 2023 Plant Hardiness Zone Map. Note that zones describe winter cold, not frost timing — these frost dates are the numbers to plan plantings around.