Frost Dates & Planting Calendar for Claremore, OK

The average first fall frost in Claremore, OK is October 30, and the average last spring frost is April 7, giving a growing season of about 205 days.

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

Last Spring Frost

April 7

Safe Apr 24 Typical Apr 7 Risky Mar 20

First Fall Frost

October 30

Safe Oct 15 Typical Oct 30 Risky Nov 13

Growing Season

205 days

Typical last frost to typical first frost.

USDA Hardiness Zone

Zone 7a

Mild winters and a long growing season, room for both cool- and warm-season crops.

Data: NOAA station CLAREMORE 2 ENE, OK US, 3.3 km away.

— days until the typical last spring frost

How Claremore Compares

Claremore's typical last spring frost (Apr 7) comes later than in 85% of the 48 Oklahoma cities we track.
Its 205-day growing season is 9 days shorter than the Oklahoma median of 214 days.
Compared with Owasso (22 km away), Claremore's last spring frost comes 7 days later than Owasso's, and its first fall frost arrives 5 days earlier.
July is the warmest month (average high 92°F) and January the coldest (average low 24°F).

Monthly Temperatures

Avg. high Avg. temp Avg. low

Planting Calendar

Vegetables
Crop	Start indoors	Direct sow	Transplant	Fall planting	Maturity	Notes
Tomato	Feb 10 – Feb 24	—	Apr 14 – Apr 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	Jan 27 – Feb 10	—	Apr 14 – Apr 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	Jan 27 – Feb 10	—	Apr 21 – Apr 28	—	65–85 days	Warm-season crop, similar timing to pepper; needs consistently warm soil (65F+) to transplant.
Cucumber	Mar 10 – Mar 17	Apr 14 – Apr 21	Apr 14 – Apr 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	Mar 17 – Mar 24	Apr 14 – Apr 28	Apr 14 – Apr 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	Mar 10 – Mar 17	Apr 14 – Apr 28	Apr 14 – Apr 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	—	Apr 14 – Apr 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	Mar 10 – Mar 17	—	Apr 21 – Apr 28	—	70–90 days	Needs warm soil (65F+); start indoors 3-4 weeks before last frost, transplant 2-3 weeks after last frost.
Cantaloupe	Mar 10 – Mar 17	—	Apr 21 – Apr 28	—	70–90 days	Same warm-soil requirements as watermelon; avoid disturbing roots when transplanting.
Corn	—	Apr 7 – Apr 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	—	Apr 7 – Apr 21	—	—	50–65 days	Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush.
Pea	—	Feb 24 – Mar 10	—	—	55–70 days	Cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked.
Lettuce	—	Mar 10 – Mar 24	—	Sep 4 – Sep 18	45–60 days	Cold-hardy; direct sow 2-4 weeks before last frost. Also transplantable from indoor starts.
Spinach	—	Feb 24 – Mar 10	—	Sep 4 – Sep 18	40–50 days	Very cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked.
Kale	—	Mar 10 – Mar 24	—	Aug 21 – Sep 4	50–65 days	Cold-hardy; direct sow 2-4 weeks before last frost or start indoors for earlier transplants.
Arugula	—	Mar 10 – Mar 24	—	Sep 18 – Sep 25	30–40 days	Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks.
Swiss Chard	—	Mar 17 – Mar 31	—	—	50–60 days	Fairly cold-hardy; direct sow 1-3 weeks before last frost. Tolerates light frost in fall too.
Broccoli	Feb 17 – Mar 3	—	Mar 17 – Mar 24	Aug 28 – Sep 4	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	Feb 17 – Mar 3	—	Mar 24 – Mar 31	Aug 21 – Aug 28	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	Feb 17 – Mar 3	—	Mar 10 – Mar 24	Aug 21 – Sep 4	60–100 days	Cold-hardy; start indoors 5-7 weeks before last frost, transplant 2-4 weeks before last frost.
Brussels Sprouts	Feb 17 – Mar 3	—	Mar 17 – Mar 31	—	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	—	Mar 10 – Mar 24	—	Aug 7 – Aug 21	60–80 days	Direct sow only (does not transplant); sow 2-4 weeks before last frost, as soon as soil can be worked.
Beet	—	Mar 10 – Mar 24	—	Aug 21 – Sep 4	50–65 days	Direct sow 2-4 weeks before last frost; tolerates light frost.
Radish	—	Mar 3 – Mar 17	—	Sep 18 – Oct 2	22–30 days	Very fast and cold-hardy; direct sow 3-5 weeks before last frost, as soon as soil can be worked.
Turnip	—	Mar 10 – Mar 24	—	Aug 21 – Sep 4	40–60 days	Cold-hardy; direct sow 2-4 weeks before last frost.
Onion	Jan 27 – Feb 10	—	Mar 10 – Mar 24	—	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	—	—	—	Oct 2 – Oct 16	240–270 days	Fall-planted crop only; not planted in spring in most climates.
Potato	—	Mar 10 – Mar 24	—	—	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	—	—	Apr 21 – May 5	—	90–120 days	Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.
Asparagus	—	—	Mar 10 – Mar 24	—	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
Crop	Start indoors	Direct sow	Transplant	Fall planting	Maturity	Notes
Basil	Feb 24 – Mar 3	—	Apr 14 – Apr 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	—	Mar 17 – Mar 31	—	Sep 4 – Sep 18	45–70 days	Cool-season, bolts in heat; direct sow 1-3 weeks before last frost, succession sow through spring.
Parsley	Feb 10 – Feb 24	—	Mar 24 – Mar 31	—	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	—	Mar 17 – Mar 31	—	—	40–60 days	Taprooted, does not transplant well; direct sow 1-3 weeks before last frost, succession sow through summer.
Oregano	Feb 10 – Feb 24	—	Apr 7 – Apr 14	—	80–90 days	Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date.
Thyme	Feb 10 – Feb 24	—	Apr 7 – Apr 14	—	85–95 days	Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost.

Flowers
Crop	Start indoors	Direct sow	Transplant	Fall planting	Maturity	Notes
Sunflower	—	Apr 14 – Apr 28	—	—	70–100 days	Direct sow 1-3 weeks after last frost once soil has warmed; taprooted, resents transplanting.
Zinnia	Mar 10 – Mar 17	Apr 14 – Apr 28	Apr 14 – Apr 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	Feb 24 – Mar 10	—	Apr 14 – Apr 21	—	45–60 days	Frost-tender; start indoors 4-6 weeks before last frost, transplant after all frost danger has passed.
Cosmos	Mar 10 – Mar 17	Apr 14 – Apr 28	Apr 14 – Apr 21	—	60–90 days	Easy from direct seed 1-3 weeks after last frost; can also start indoors 3-4 weeks early.
Nasturtium	—	Apr 14 – Apr 28	—	—	50–65 days	Frost-tender, resents root disturbance; direct sow 1-3 weeks after last frost once soil has warmed.
Dahlia	—	—	Apr 14 – Apr 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 Claremore, OK?

Based on 1991–2020 NOAA climate normals for the CLAREMORE 2 ENE, OK US station, the last spring frost in Claremore typically falls around April 7. A cautious gardener might wait until April 24 (only a 10% chance of a later frost), while March 20 marks an earlier, higher-risk planting date.

When is the first frost in Claremore, OK in fall?

The first fall frost in Claremore typically arrives around October 30. To stay safe, assume frost could start as early as October 15; in milder years it can hold off until November 13.

How long is the growing season in Claremore, OK?

Claremore's average frost-free growing season is about 205 days, running from the typical last spring frost (April 7) to the typical first fall frost (October 30).

What USDA hardiness zone is Claremore, OK in?

Claremore, OK is in USDA plant hardiness zone 7a, per the USDA's 2023 Plant Hardiness Zone Map. Mild winters and a long growing season, room for both cool- and warm-season crops.