Lake George 8 SW, CO Frost Dates & Growing Season

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

Last spring frost
Jun 2
~50% chance of frost after
First fall frost
Sep 19
~50% chance of frost before
Growing season
109 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 19 Jun 2 Jun 17
First fall frost Sep 30 Sep 19 Sep 6
Hard freeze (28°F), median last May 19 · first Sep 29

Computed from NOAA 1991–2020 climate normals at the LAKE GEORGE 8 SW 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 Lake George 8 SW

Computed from Lake George 8 SW'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 7 – Apr 21 Jun 9 – Jun 16
🫑 Peppers Mar 24 – Apr 7 Jun 16 – Jun 23
🥬 Lettuce Apr 21 – May 5 May 5 – May 19 May 5 – Jun 2
🫛 Peas Apr 21 – May 5
🥕 Carrots May 12 – Jun 2
🥦 Broccoli Apr 14 – Apr 28 May 12 – May 26
🥬 Kale Apr 21 – May 5 May 5 – May 19 May 5 – May 19
🥒 Cucumbers May 5 – May 12 Jun 9 – Jun 16 Jun 9 – Jun 16
🥒 Zucchini May 5 – May 12 Jun 9 – Jun 16 Jun 9 – Jun 16
🫘 Green Beans (Bush) Jun 9 – Jun 16
🌽 Sweet Corn Jun 9 – Jun 16
🌿 Basil Apr 21 – May 5 Jun 9 – Jun 16 Jun 16 – Jun 23
🧄 Garlic Fall: Aug 8 – Sep 5

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 Lake George 8 SW's dates automatically after a lookup.

Reading the season in Lake George 8 SW

At about 109 frost-free days, Lake George 8 SW 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 Lake George 8 SW, CO?

The average last spring frost in Lake George 8 SW is around Jun 2, 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 Lake George 8 SW, CO?

The average first fall frost in Lake George 8 SW arrives around Sep 19. 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 Lake George 8 SW?

About 109 frost-free days on average, from Jun 2 to Sep 19. 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 Lake George 8 SW 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.