Stony Gorge Rsvr, CA Frost Dates & Growing Season

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

Last spring frost
Apr 5
~50% chance of frost after
First fall frost
Nov 13
~50% chance of frost before
Growing season
222 days
frost-free stretch
USDA zone
≈ 9b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Mar 8 Apr 5 Apr 24
First fall frost Nov 29 Nov 13 Oct 29
Hard freeze (28°F), median last Mar 1 · first Nov 29

Computed from NOAA 1991–2020 climate normals at the STONY GORGE RSVR 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 Stony Gorge Rsvr

Computed from Stony Gorge Rsvr's own frost dates. Click any crop for the full zone-9 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Feb 8 – Feb 22 Apr 12 – Apr 19
🫑 Peppers Jan 25 – Feb 8 Apr 19 – Apr 26
🥬 Lettuce Feb 22 – Mar 8 Mar 8 – Mar 22 Mar 8 – Apr 5
🫛 Peas Feb 22 – Mar 8
🥕 Carrots Mar 15 – Apr 5
🥦 Broccoli Feb 15 – Mar 1 Mar 15 – Mar 29
🥬 Kale Feb 22 – Mar 8 Mar 8 – Mar 22 Mar 8 – Mar 22
🥒 Cucumbers Mar 8 – Mar 15 Apr 12 – Apr 19 Apr 12 – Apr 19
🥒 Zucchini Mar 8 – Mar 15 Apr 12 – Apr 19 Apr 12 – Apr 19
🫘 Green Beans (Bush) Apr 12 – Apr 19
🌽 Sweet Corn Apr 12 – Apr 19
🌿 Basil Feb 22 – Mar 8 Apr 12 – Apr 19 Apr 19 – Apr 26
🧄 Garlic Fall: Oct 2 – Oct 30

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 Stony Gorge Rsvr's dates automatically after a lookup.

Reading the season in Stony Gorge Rsvr

With roughly 222 frost-free days, Stony Gorge Rsvr 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 Nov 13 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Stony Gorge Rsvr, CA?

The average last spring frost in Stony Gorge Rsvr is around Apr 5, 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 Stony Gorge Rsvr, CA?

The average first fall frost in Stony Gorge Rsvr arrives around Nov 13. 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 Stony Gorge Rsvr?

About 222 frost-free days on average, from Apr 5 to Nov 13. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Stony Gorge Rsvr in?

USDA zone 9b 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.