Dayville 8 NW, OR Frost Dates & Growing Season

The two dates every Dayville 8 NW garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
May 4
~50% chance of frost after
First fall frost
Oct 6
~50% chance of frost before
Growing season
155 days
frost-free stretch
USDA zone
≈ 7a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Apr 18 May 4 May 23
First fall frost Oct 23 Oct 6 Sep 21
Hard freeze (28°F), median last Apr 18 · first Oct 23

Computed from NOAA 1991–2020 climate normals at the DAYVILLE 8 NW 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 Dayville 8 NW

Computed from Dayville 8 NW's own frost dates. Click any crop for the full zone-7 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Mar 9 – Mar 23 May 11 – May 18
🫑 Peppers Feb 23 – Mar 9 May 18 – May 25
🥬 Lettuce Mar 23 – Apr 6 Apr 6 – Apr 20 Apr 6 – May 4
🫛 Peas Mar 23 – Apr 6
🥕 Carrots Apr 13 – May 4
🥦 Broccoli Mar 16 – Mar 30 Apr 13 – Apr 27
🥬 Kale Mar 23 – Apr 6 Apr 6 – Apr 20 Apr 6 – Apr 20
🥒 Cucumbers Apr 6 – Apr 13 May 11 – May 18 May 11 – May 18
🥒 Zucchini Apr 6 – Apr 13 May 11 – May 18 May 11 – May 18
🫘 Green Beans (Bush) May 11 – May 18
🌽 Sweet Corn May 11 – May 18
🌿 Basil Mar 23 – Apr 6 May 11 – May 18 May 18 – May 25
🧄 Garlic Fall: Aug 25 – Sep 22

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 Dayville 8 NW's dates automatically after a lookup.

Reading the season in Dayville 8 NW

Roughly 155 frost-free days gives Dayville 8 NW gardeners room for nearly every common vegetable. Warm-season crops go out after May 4; a fall garden sown in late summer matures comfortably before the Oct 6 frost.

Frequently asked questions

When is the last frost in Dayville 8 NW, OR?

The average last spring frost in Dayville 8 NW is around May 4, 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 Dayville 8 NW, OR?

The average first fall frost in Dayville 8 NW arrives around Oct 6. 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 Dayville 8 NW?

About 155 frost-free days on average, from May 4 to Oct 6. That fits nearly all common vegetables, though the longest-season melons and sweet potatoes benefit from transplants.

What USDA zone is Dayville 8 NW in?

USDA zone 7a 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.