Craig Moffat Co Airport, CO Frost Dates & Growing Season

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

Last spring frost
Jun 6
~50% chance of frost after
First fall frost
Sep 12
~50% chance of frost before
Growing season
98 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 6 Jun 24
First fall frost Sep 25 Sep 12 Aug 31
Hard freeze (28°F), median last May 20 · first Sep 23

Computed from NOAA 1991–2020 climate normals at the CRAIG MOFFAT CO 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 Craig Moffat Co Airport

Computed from Craig Moffat Co Airport'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 11 – Apr 25 Jun 13 – Jun 20
🫑 Peppers Mar 28 – Apr 11 Jun 20 – Jun 27
🥬 Lettuce Apr 25 – May 9 May 9 – May 23 May 9 – Jun 6
🫛 Peas Apr 25 – May 9
🥕 Carrots May 16 – Jun 6
🥦 Broccoli Apr 18 – May 2 May 16 – May 30
🥬 Kale Apr 25 – May 9 May 9 – May 23 May 9 – May 23
🥒 Cucumbers May 9 – May 16 Jun 13 – Jun 20 Jun 13 – Jun 20
🥒 Zucchini May 9 – May 16 Jun 13 – Jun 20 Jun 13 – Jun 20
🫘 Green Beans (Bush) Jun 13 – Jun 20
🌽 Sweet Corn Jun 13 – Jun 20
🌿 Basil Apr 25 – May 9 Jun 13 – Jun 20 Jun 20 – Jun 27
🧄 Garlic Fall: Aug 1 – Aug 29

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 Craig Moffat Co Airport's dates automatically after a lookup.

Reading the season in Craig Moffat Co Airport

At about 98 frost-free days, Craig Moffat Co Airport 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 Craig Moffat Co Airport, CO?

The average last spring frost in Craig Moffat Co Airport is around Jun 6, 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 Craig Moffat Co Airport, CO?

The average first fall frost in Craig Moffat Co Airport arrives around Sep 12. 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 Craig Moffat Co Airport?

About 98 frost-free days on average, from Jun 6 to Sep 12. 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 Craig Moffat Co Airport 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.