Frost Dates & Planting Calendar for Glenville, NY

Plan your garden around Glenville, NY's typical frost-free growing season, using NOAA climate normals and a 42-crop planting calendar built for this location.

Last Spring Frost
May 7
Safe May 23 Typical May 7 Risky Apr 22
First Fall Frost
October 7
Safe Sep 25 Typical Oct 7 Risky Oct 22
Growing Season
153 days
Typical last frost to typical first frost.
USDA Hardiness Zone
Zone 6a
A classic four-season climate with cold winters and a solid summer growing season.
Data: NOAA station DELANSON 2NE, NY US, 20.5 km away.
days until the typical last spring frost

Monthly Temperatures

Monthly normal temperatures (°F) 20°40°60°80° JFMAMJJASOND
Avg. high Avg. temp Avg. low

Planting Calendar

Vegetables
CropStart indoorsDirect sowTransplantFall plantingMaturityNotes
Tomato Mar 12 – Mar 26 May 14 – May 21 60–85 days Start indoors 6-8 weeks before last frost; transplant out 1-2 weeks after last frost once soil has warmed.
Pepper Feb 26 – Mar 12 May 14 – May 28 60–90 days Slow to germinate; start indoors 8-10 weeks before last frost. Transplant only once nights stay above 55F, 1-3 weeks after last frost.
Eggplant Feb 26 – Mar 12 May 21 – May 28 65–85 days Warm-season crop, similar timing to pepper; needs consistently warm soil (65F+) to transplant.
Cucumber Apr 9 – Apr 16 May 14 – May 21 May 14 – May 21 50–65 days Can be started indoors 3-4 weeks before transplanting, or direct-sown 1-2 weeks after last frost once soil is warm.
Zucchini Apr 16 – Apr 23 May 14 – May 28 May 14 – May 21 45–55 days Fast-growing squash; direct sow 1-3 weeks after last frost, or start indoors 2-3 weeks early for a head start.
Winter Squash Apr 9 – Apr 16 May 14 – May 28 May 14 – May 21 80–110 days Long season; direct sow after soil warms, or start indoors 3-4 weeks before last frost in short-season climates.
Pumpkin May 14 – May 28 90–120 days Direct sow 1-3 weeks after last frost; back-time from your first fall frost so the 90-120 day maturity window lands before it.
Watermelon Apr 9 – Apr 16 May 21 – May 28 70–90 days Needs warm soil (65F+); start indoors 3-4 weeks before last frost, transplant 2-3 weeks after last frost.
Cantaloupe Apr 9 – Apr 16 May 21 – May 28 70–90 days Same warm-soil requirements as watermelon; avoid disturbing roots when transplanting.
Corn May 7 – May 21 60–100 days Direct sow at last frost to 2 weeks after, once soil reaches 60F; does not transplant well. Succession sow every 2 weeks.
Green Bean May 7 – May 21 50–65 days Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush.
Pea Mar 26 – Apr 9 55–70 days Cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked.
Lettuce Apr 9 – Apr 23 Aug 12 – Aug 26 45–60 days Cold-hardy; direct sow 2-4 weeks before last frost. Also transplantable from indoor starts.
Spinach Mar 26 – Apr 9 Aug 12 – Aug 26 40–50 days Very cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked.
Kale Apr 9 – Apr 23 Jul 29 – Aug 12 50–65 days Cold-hardy; direct sow 2-4 weeks before last frost or start indoors for earlier transplants.
Arugula Apr 9 – Apr 23 Aug 26 – Sep 2 30–40 days Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks.
Swiss Chard Apr 16 – Apr 30 50–60 days Fairly cold-hardy; direct sow 1-3 weeks before last frost. Tolerates light frost in fall too.
Broccoli Mar 19 – Apr 2 Apr 16 – Apr 23 Aug 5 – Aug 12 55–80 days Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).
Cauliflower Mar 19 – Apr 2 Apr 23 – Apr 30 Jul 29 – Aug 5 55–85 days Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.
Cabbage Mar 19 – Apr 2 Apr 9 – Apr 23 Jul 29 – Aug 12 60–100 days Cold-hardy; start indoors 5-7 weeks before last frost, transplant 2-4 weeks before last frost.
Brussels Sprouts Mar 19 – Apr 2 Apr 16 – Apr 30 90–110 days Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.
Carrot Apr 9 – Apr 23 Jul 15 – Jul 29 60–80 days Direct sow only (does not transplant); sow 2-4 weeks before last frost, as soon as soil can be worked.
Beet Apr 9 – Apr 23 Jul 29 – Aug 12 50–65 days Direct sow 2-4 weeks before last frost; tolerates light frost.
Radish Apr 2 – Apr 16 Aug 26 – Sep 9 22–30 days Very fast and cold-hardy; direct sow 3-5 weeks before last frost, as soon as soil can be worked.
Turnip Apr 9 – Apr 23 Jul 29 – Aug 12 40–60 days Cold-hardy; direct sow 2-4 weeks before last frost.
Onion Feb 26 – Mar 12 Apr 9 – Apr 23 90–120 days Start seeds indoors 8-10 weeks before last frost (or use sets/transplants); set out 2-4 weeks before last frost, very cold-tolerant as seedlings.
Garlic Sep 9 – Sep 23 240–270 days Fall-planted crop only; not planted in spring in most climates.
Potato Apr 9 – Apr 23 70–120 days Plant seed potatoes 2-4 weeks before last frost, as soon as soil can be worked and is above 45F; light frost on emerging foliage is usually tolerated.
Sweet Potato May 21 – Jun 4 90–120 days Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.
Asparagus Apr 9 – Apr 23 730–1095 days Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.
Herbs
CropStart indoorsDirect sowTransplantFall plantingMaturityNotes
Basil Mar 26 – Apr 2 May 14 – May 21 50–70 days Very frost/cold sensitive; start indoors 5-6 weeks before last frost, transplant only after all danger of frost (1-2 weeks after) and nights stay warm.
Cilantro Apr 16 – Apr 30 Aug 12 – Aug 26 45–70 days Cool-season, bolts in heat; direct sow 1-3 weeks before last frost, succession sow through spring.
Parsley Mar 12 – Mar 26 Apr 23 – Apr 30 70–90 days Slow to germinate; start indoors 6-8 weeks before last frost, transplant 1-2 weeks before last frost (biennial, cold-tolerant).
Dill Apr 16 – Apr 30 40–60 days Taprooted, does not transplant well; direct sow 1-3 weeks before last frost, succession sow through summer.
Oregano Mar 12 – Mar 26 May 7 – May 14 80–90 days Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date.
Thyme Mar 12 – Mar 26 May 7 – May 14 85–95 days Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost.
Flowers
CropStart indoorsDirect sowTransplantFall plantingMaturityNotes
Sunflower May 14 – May 28 70–100 days Direct sow 1-3 weeks after last frost once soil has warmed; taprooted, resents transplanting.
Zinnia Apr 9 – Apr 16 May 14 – May 28 May 14 – May 21 60–70 days Frost-tender; direct sow 1-3 weeks after last frost, or start indoors 3-4 weeks early for earlier blooms.
Marigold Mar 26 – Apr 9 May 14 – May 21 45–60 days Frost-tender; start indoors 4-6 weeks before last frost, transplant after all frost danger has passed.
Cosmos Apr 9 – Apr 16 May 14 – May 28 May 14 – May 21 60–90 days Easy from direct seed 1-3 weeks after last frost; can also start indoors 3-4 weeks early.
Nasturtium May 14 – May 28 50–65 days Frost-tender, resents root disturbance; direct sow 1-3 weeks after last frost once soil has warmed.
Dahlia May 14 – May 28 90–120 days Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive.

Date ranges are estimates based on university extension guidelines and this city's NOAA frost normals — not a guarantee. Scroll to see all columns on narrow screens.

Frequently Asked Questions

When is the last frost in Glenville, NY?

Based on 1991–2020 NOAA climate normals for the DELANSON 2NE, NY US station, the last spring frost in Glenville typically falls around May 7. A cautious gardener might wait until May 23 (only a 10% chance of a later frost), while April 22 marks an earlier, higher-risk planting date.

When is the first frost in Glenville, NY in fall?

The first fall frost in Glenville typically arrives around October 7. To stay safe, assume frost could start as early as September 25; in milder years it can hold off until October 22.

How long is the growing season in Glenville, NY?

Glenville's average frost-free growing season is about 153 days, running from the typical last spring frost (May 7) to the typical first fall frost (October 7).

What USDA hardiness zone is Glenville, NY in?

Glenville, NY is in USDA plant hardiness zone 6a, per the USDA's 2023 Plant Hardiness Zone Map. A classic four-season climate with cold winters and a solid summer growing season.

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