Carnegie 5 NE, OK Frost Dates & Growing Season

The two dates every Carnegie 5 NE garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Apr 6
~50% chance of frost after
First fall frost
Oct 31
~50% chance of frost before
Growing season
208 days
frost-free stretch
USDA zone
≈ 7b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Mar 20 Apr 6 Apr 22
First fall frost Nov 14 Oct 31 Oct 15
Hard freeze (28°F), median last Mar 25 · first Nov 9

Computed from NOAA 1991–2020 climate normals at the CARNEGIE 5 NE 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 Carnegie 5 NE

Computed from Carnegie 5 NE'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 9 – Feb 23 Apr 13 – Apr 20
🫑 Peppers Jan 26 – Feb 9 Apr 20 – Apr 27
🥬 Lettuce Feb 23 – Mar 9 Mar 9 – Mar 23 Mar 9 – Apr 6
🫛 Peas Feb 23 – Mar 9
🥕 Carrots Mar 16 – Apr 6
🥦 Broccoli Feb 16 – Mar 2 Mar 16 – Mar 30
🥬 Kale Feb 23 – Mar 9 Mar 9 – Mar 23 Mar 9 – Mar 23
🥒 Cucumbers Mar 9 – Mar 16 Apr 13 – Apr 20 Apr 13 – Apr 20
🥒 Zucchini Mar 9 – Mar 16 Apr 13 – Apr 20 Apr 13 – Apr 20
🫘 Green Beans (Bush) Apr 13 – Apr 20
🌽 Sweet Corn Apr 13 – Apr 20
🌿 Basil Feb 23 – Mar 9 Apr 13 – Apr 20 Apr 20 – Apr 27
🧄 Garlic Fall: Sep 19 – Oct 17

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 Carnegie 5 NE's dates automatically after a lookup.

Reading the season in Carnegie 5 NE

With roughly 208 frost-free days, Carnegie 5 NE 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 31 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Carnegie 5 NE, OK?

The average last spring frost in Carnegie 5 NE is around Apr 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 Carnegie 5 NE, OK?

The average first fall frost in Carnegie 5 NE arrives around Oct 31. 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 Carnegie 5 NE?

About 208 frost-free days on average, from Apr 6 to Oct 31. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Carnegie 5 NE in?

USDA zone 7b 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.