Driggs, ID Frost Dates & Growing Season

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

Last spring frost
Jun 13
~50% chance of frost after
First fall frost
Sep 9
~50% chance of frost before
Growing season
88 days
frost-free stretch
USDA zone
≈ 4b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost May 27 Jun 13 Jun 28
First fall frost Sep 23 Sep 9 Aug 26
Hard freeze (28°F), median last May 22 · first Sep 20

Computed from NOAA 1991–2020 climate normals at the DRIGGS 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 Driggs

Computed from Driggs's own frost dates. Click any crop for the full zone-4 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Apr 18 – May 2 Jun 20 – Jun 27
🫑 Peppers Apr 4 – Apr 18 Jun 27 – Jul 4
🥬 Lettuce May 2 – May 16 May 16 – May 30 May 16 – Jun 13
🫛 Peas May 2 – May 16
🥕 Carrots May 23 – Jun 13
🥦 Broccoli Apr 25 – May 9 May 23 – Jun 6
🥬 Kale May 2 – May 16 May 16 – May 30 May 16 – May 30
🥒 Cucumbers May 16 – May 23 Jun 20 – Jun 27 Jun 20 – Jun 27
🥒 Zucchini May 16 – May 23 Jun 20 – Jun 27 Jun 20 – Jun 27
🫘 Green Beans (Bush) Jun 20 – Jun 27
🌽 Sweet Corn Jun 20 – Jun 27
🌿 Basil May 2 – May 16 Jun 20 – Jun 27 Jun 27 – Jul 4
🧄 Garlic Fall: Jul 29 – Aug 26

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 Driggs's dates automatically after a lookup.

Reading the season in Driggs

At about 88 frost-free days, Driggs rewards efficiency: start warm-season crops indoors, favor short-season varieties, and lean on cold-tolerant crops — peas, kale, roots — that shrug off the shoulder-season frosts on either end.

Frequently asked questions

When is the last frost in Driggs, ID?

The average last spring frost in Driggs is around Jun 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 Driggs, ID?

The average first fall frost in Driggs arrives around Sep 9. 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 Driggs?

About 88 frost-free days on average, from Jun 13 to Sep 9. That favors short-season varieties and transplants for warm-season crops, with cool-season vegetables doing the heavy lifting in spring and fall.

What USDA zone is Driggs in?

USDA zone 4b 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.