Doylestown Airport, PA Frost Dates & Growing Season

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

Last spring frost
Apr 13
~50% chance of frost after
First fall frost
Oct 30
~50% chance of frost before
Growing season
200 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 1 Apr 13 Apr 27
First fall frost Nov 12 Oct 30 Oct 15
Hard freeze (28°F), median last Apr 2 · first Nov 10

Computed from NOAA 1991–2020 climate normals at the DOYLESTOWN AP 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 Doylestown Airport

Computed from Doylestown Airport'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 Feb 16 – Mar 2 Apr 20 – Apr 27
🫑 Peppers Feb 2 – Feb 16 Apr 27 – May 4
🥬 Lettuce Mar 2 – Mar 16 Mar 16 – Mar 30 Mar 16 – Apr 13
🫛 Peas Mar 2 – Mar 16
🥕 Carrots Mar 23 – Apr 13
🥦 Broccoli Feb 23 – Mar 9 Mar 23 – Apr 6
🥬 Kale Mar 2 – Mar 16 Mar 16 – Mar 30 Mar 16 – Mar 30
🥒 Cucumbers Mar 16 – Mar 23 Apr 20 – Apr 27 Apr 20 – Apr 27
🥒 Zucchini Mar 16 – Mar 23 Apr 20 – Apr 27 Apr 20 – Apr 27
🫘 Green Beans (Bush) Apr 20 – Apr 27
🌽 Sweet Corn Apr 20 – Apr 27
🌿 Basil Mar 2 – Mar 16 Apr 20 – Apr 27 Apr 27 – May 4
🧄 Garlic Fall: Sep 18 – Oct 16

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 Doylestown Airport's dates automatically after a lookup.

Reading the season in Doylestown Airport

With roughly 200 frost-free days, Doylestown Airport 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 30 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Doylestown Airport, PA?

The average last spring frost in Doylestown Airport is around Apr 13, 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 Doylestown Airport, PA?

The average first fall frost in Doylestown Airport arrives around Oct 30. 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 Doylestown Airport?

About 200 frost-free days on average, from Apr 13 to Oct 30. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Doylestown Airport 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.