Quilcene 2 SW, WA Frost Dates & Growing Season

The two dates every Quilcene 2 SW garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Apr 11
~50% chance of frost after
First fall frost
Oct 28
~50% chance of frost before
Growing season
200 days
frost-free stretch
USDA zone
≈ 9a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Mar 21 Apr 11 May 1
First fall frost Nov 15 Oct 28 Oct 13
Hard freeze (28°F), median last Mar 7 · first Nov 15

Computed from NOAA 1991–2020 climate normals at the QUILCENE 2 SW 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 Quilcene 2 SW

Computed from Quilcene 2 SW'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 14 – Feb 28 Apr 18 – Apr 25
🫑 Peppers Jan 31 – Feb 14 Apr 25 – May 2
🥬 Lettuce Feb 28 – Mar 14 Mar 14 – Mar 28 Mar 14 – Apr 11
🫛 Peas Feb 28 – Mar 14
🥕 Carrots Mar 21 – Apr 11
🥦 Broccoli Feb 21 – Mar 7 Mar 21 – Apr 4
🥬 Kale Feb 28 – Mar 14 Mar 14 – Mar 28 Mar 14 – Mar 28
🥒 Cucumbers Mar 14 – Mar 21 Apr 18 – Apr 25 Apr 18 – Apr 25
🥒 Zucchini Mar 14 – Mar 21 Apr 18 – Apr 25 Apr 18 – Apr 25
🫘 Green Beans (Bush) Apr 18 – Apr 25
🌽 Sweet Corn Apr 18 – Apr 25
🌿 Basil Feb 28 – Mar 14 Apr 18 – Apr 25 Apr 25 – May 2
🧄 Garlic Fall: Sep 16 – Oct 14

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 Quilcene 2 SW's dates automatically after a lookup.

Reading the season in Quilcene 2 SW

With roughly 200 frost-free days, Quilcene 2 SW 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 Oct 28 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Quilcene 2 SW, WA?

The average last spring frost in Quilcene 2 SW is around Apr 11, 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 Quilcene 2 SW, WA?

The average first fall frost in Quilcene 2 SW arrives around Oct 28. 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 Quilcene 2 SW?

About 200 frost-free days on average, from Apr 11 to Oct 28. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Quilcene 2 SW in?

USDA zone 9a 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.