Glenwood, NM Frost Dates & Growing Season

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

Last spring frost
May 6
~50% chance of frost after
First fall frost
Oct 18
~50% chance of frost before
Growing season
165 days
frost-free stretch
USDA zone
≈ 7b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Apr 21 May 6 May 20
First fall frost Oct 30 Oct 18 Oct 7
Hard freeze (28°F), median last Apr 21 · first Oct 28

Computed from NOAA 1991–2020 climate normals at the GLENWOOD 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 Glenwood

Computed from Glenwood'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 Mar 11 – Mar 25 May 13 – May 20
🫑 Peppers Feb 25 – Mar 11 May 20 – May 27
🥬 Lettuce Mar 25 – Apr 8 Apr 8 – Apr 22 Apr 8 – May 6
🫛 Peas Mar 25 – Apr 8
🥕 Carrots Apr 15 – May 6
🥦 Broccoli Mar 18 – Apr 1 Apr 15 – Apr 29
🥬 Kale Mar 25 – Apr 8 Apr 8 – Apr 22 Apr 8 – Apr 22
🥒 Cucumbers Apr 8 – Apr 15 May 13 – May 20 May 13 – May 20
🥒 Zucchini Apr 8 – Apr 15 May 13 – May 20 May 13 – May 20
🫘 Green Beans (Bush) May 13 – May 20
🌽 Sweet Corn May 13 – May 20
🌿 Basil Mar 25 – Apr 8 May 13 – May 20 May 20 – May 27
🧄 Garlic Fall: Sep 6 – Oct 4

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 Glenwood's dates automatically after a lookup.

Reading the season in Glenwood

Roughly 165 frost-free days gives Glenwood gardeners room for nearly every common vegetable. Warm-season crops go out after May 6; a fall garden sown in late summer matures comfortably before the Oct 18 frost.

Frequently asked questions

When is the last frost in Glenwood, NM?

The average last spring frost in Glenwood is around May 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 Glenwood, NM?

The average first fall frost in Glenwood arrives around Oct 18. 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 Glenwood?

About 165 frost-free days on average, from May 6 to Oct 18. That fits nearly all common vegetables, though the longest-season melons and sweet potatoes benefit from transplants.

What USDA zone is Glenwood 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.