Mullan Pass Vor-Dme, ID Frost Dates & Growing Season

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

Last spring frost
Jun 10
~50% chance of frost after
First fall frost
Sep 23
~50% chance of frost before
Growing season
105 days
frost-free stretch
USDA zone
≈ 5b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost May 21 Jun 10 Jun 25
First fall frost Oct 8 Sep 23 Sep 4
Hard freeze (28°F), median last May 21 · first Oct 5

Computed from NOAA 1991–2020 climate normals at the MULLAN PASS VOR/DME 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 Mullan Pass Vor-Dme

Computed from Mullan Pass Vor-Dme's own frost dates. Click any crop for the full zone-5 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Apr 15 – Apr 29 Jun 17 – Jun 24
🫑 Peppers Apr 1 – Apr 15 Jun 24 – Jul 1
🥬 Lettuce Apr 29 – May 13 May 13 – May 27 May 13 – Jun 10
🫛 Peas Apr 29 – May 13
🥕 Carrots May 20 – Jun 10
🥦 Broccoli Apr 22 – May 6 May 20 – Jun 3
🥬 Kale Apr 29 – May 13 May 13 – May 27 May 13 – May 27
🥒 Cucumbers May 13 – May 20 Jun 17 – Jun 24 Jun 17 – Jun 24
🥒 Zucchini May 13 – May 20 Jun 17 – Jun 24 Jun 17 – Jun 24
🫘 Green Beans (Bush) Jun 17 – Jun 24
🌽 Sweet Corn Jun 17 – Jun 24
🌿 Basil Apr 29 – May 13 Jun 17 – Jun 24 Jun 24 – Jul 1
🧄 Garlic Fall: Aug 12 – Sep 9

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 Mullan Pass Vor-Dme's dates automatically after a lookup.

Reading the season in Mullan Pass Vor-Dme

At about 105 frost-free days, Mullan Pass Vor-Dme 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 Mullan Pass Vor-Dme, ID?

The average last spring frost in Mullan Pass Vor-Dme is around Jun 10, 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 Mullan Pass Vor-Dme, ID?

The average first fall frost in Mullan Pass Vor-Dme arrives around Sep 23. 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 Mullan Pass Vor-Dme?

About 105 frost-free days on average, from Jun 10 to Sep 23. 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 Mullan Pass Vor-Dme in?

USDA zone 5b 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.