Frost Dates for Youngstown, OH 44502
Youngstown has 13 ZIP codes. The Youngstown, OH frost page lists all of them with their dates.
Last spring frost May 9 · First fall frost October 11 · 155 frost-free days · USDA Zone 6a
ZIP 44502 has about 9,590 people, one of 13 ZIP codes in Youngstown.
Moderate season: 155 frost-free days. Spring frost risk spans April 24–May 27 (33 days). Fall frost risk spans September 21–October 28 (37 days).
Frost probability for 44502
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 27 | May 9 | April 24 |
| Fall (first frost) | September 21 | October 11 | October 28 |
Dates come from NOAA 1971–2000 freeze probabilities at MINERAL RIDGE WTR WKS (13.9 km away); the 50% date is the median year.
Which crops fit a 155-day season in Youngstown
In Youngstown (155 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 4 | May 23–May 30 | 113 | fits: 80 days to maturity, 113 available after May 23. | Jun 11 |
| Pepper | Mar 28 | May 23–May 30 | 113 | fits: 75 days to maturity, 113 available after May 23. | Jun 16 |
| Lettuce | Mar 14 | Apr 11–Apr 18 | 190 | two-plantings: Plant Apr 11 and again by Aug 20; both mature before Oct 18. | Aug 20 |
| Carrots | — | Apr 18–Apr 25 | 197 | fits: 70 days to maturity, 197 available after Apr 18. | Aug 9 |
| Cucumber | Apr 18 | May 23–May 30 | 127 | fits: 60 days to maturity, 127 available after May 23. | Jul 15 |
| Beans | — | May 16–May 30 | 141 | two-plantings: Plant May 16 and again by Jul 22; both mature before Oct 4. | Jul 22 |
| Peas | — | Mar 14–May 23 | 218 | fits: 65 days to maturity, 218 available after Mar 14. | Jul 31 |
| Zucchini | Apr 25 | May 23–May 30 | 127 | two-plantings: Plant May 23 and again by Jul 20; both mature before Sep 27. | Jul 20 |
| Onion | Feb 14 | Apr 11–Apr 25 | 190 | fits: 100 days to maturity, 190 available after Apr 11. | — |
| Spinach | — | Mar 14–May 2 | 232 | two-plantings: Plant Mar 14 and again by Sep 8; both mature before Nov 1. | Sep 8 |
| Kale | Feb 28 | Apr 11–Apr 25 | 204 | two-plantings: Plant Apr 11 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Broccoli | Mar 14 | Apr 11–Apr 25 | 190 | fits: 80 days to maturity, 190 available after Apr 11. | Jul 16 |
| Cabbage | Mar 14 | Apr 11–Apr 25 | 204 | fits: 70 days to maturity, 204 available after Apr 11. | Aug 9 |
| Radish | — | Mar 14–Jun 6 | 218 | two-plantings: Plant Mar 14 and again by Sep 9; both mature before Oct 18. | Sep 9 |
| Beets | — | Mar 14–Jun 6 | 218 | two-plantings: Plant Mar 14 and again by Aug 10; both mature before Oct 18. | Aug 10 |
| Potatoes | — | Apr 25–May 2 | 176 | fits: 90 days to maturity, 176 available after Apr 25. | — |
| Garlic | — | Oct 11 | 260 | overwinter: Plant Oct 11 to Nov 1; harvest the following summer. | Nov 1 |
| Strawberry | — | Apr 4–May 30 | 211 | perennial: A perennial: plant Apr 4; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 11 | May 16–May 23 | 127 | fits: 75 days to maturity, 127 available after May 16. | Jun 23 |
| Pumpkin | Apr 25 | May 23–May 23 | 120 | fits: 100 days to maturity, 120 available after May 23. | May 29 |
| Cauliflower | Mar 28 | May 2–May 16 | 169 | fits: 75 days to maturity, 169 available after May 2. | Jul 21 |
| Swiss Chard | Mar 14 | Apr 25–Apr 25 | 176 | two-plantings: Plant Apr 25 and again by Aug 10; both mature before Oct 18. | Aug 10 |
| Arugula | — | Mar 14–Jun 6 | 232 | two-plantings: Plant Mar 14 and again by Sep 8; both mature before Nov 1. | Sep 8 |
| Brussel Sprouts | Mar 14 | Apr 11–Apr 25 | 204 | fits: 100 days to maturity, 204 available after Apr 11. | Jul 10 |
| Butternut Squash | Apr 25 | May 23–May 30 | 120 | fits: 100 days to maturity, 120 available after May 23. | May 29 |
| Eggplant | Mar 21 | May 23–May 30 | 113 | fits: 70 days to maturity, 113 available after May 23. | Jun 21 |
| Okra | Apr 11 | May 16–May 23 | 134 | two-plantings: Plant May 16 and again by Jul 20; both mature before Sep 27. | Jul 20 |
| Basil | Apr 4 | May 30–May 30 | 120 | fits: 60 days to maturity, 120 available after May 30. | Jul 15 |
| Cilantro | — | Apr 11–May 2 | 190 | two-plantings: Plant Apr 11 and again by Aug 15; both mature before Oct 18. | Aug 15 |
| Parsley | Feb 28 | May 16–May 23 | 155 | fits: 70 days to maturity, 155 available after May 16. | Jul 26 |
| Celery | Feb 28 | May 16–May 30 | 155 | fits: 120 days to maturity, 155 available after May 16. | Jun 6 |
| Scallions | Feb 28 | Apr 11–Apr 25 | 204 | two-plantings: Plant Apr 11 and again by Aug 19; both mature before Nov 1. | Aug 19 |
| Turnip | — | Apr 11–Apr 25 | 204 | two-plantings: Plant Apr 11 and again by Aug 29; both mature before Nov 1. | Aug 29 |
| Kohlrabi | — | Mar 28–Apr 11 | 218 | two-plantings: Plant Mar 28 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Bok Choy | Apr 11 | May 2–May 9 | 169 | two-plantings: Plant May 2 and again by Aug 20; both mature before Oct 18. | Aug 20 |
| Collards | Feb 28 | Apr 11–Apr 25 | 204 | two-plantings: Plant Apr 11 and again by Aug 19; both mature before Nov 1. | Aug 19 |
| Cantaloupe | Apr 25 | May 23–May 30 | 113 | fits: 85 days to maturity, 113 available after May 23. | Jun 6 |
| Chives | Feb 14 | May 16–May 23 | 169 | fits: 90 days to maturity, 169 available after May 16. | — |
| Dill | — | Mar 14–Jun 6 | 218 | two-plantings: Plant Mar 14 and again by Aug 10; both mature before Oct 18. | Aug 10 |
| Oregano | Feb 28 | May 16–May 23 | 169 | fits: 80 days to maturity, 169 available after May 16. | — |
| Rosemary | Feb 14 | May 16–May 23 | 155 | fits: 80 days to maturity, 155 available after May 16. | — |
| Sage | Mar 14 | May 16–May 23 | 169 | fits: 75 days to maturity, 169 available after May 16. | — |
| Thyme | Feb 28 | May 16–May 23 | 169 | fits: 90 days to maturity, 169 available after May 16. | — |
| Calendula | Mar 28 | Apr 25–May 9 | 176 | two-plantings: Plant Apr 25 and again by Aug 15; both mature before Oct 18. | Aug 15 |
| Cosmos | Apr 11 | May 9–May 23 | 141 | two-plantings: Plant May 9 and again by Jul 15; both mature before Sep 27. | Jul 15 |
| Lavender | Feb 14 | May 9–May 23 | 176 | fits: 90 days to maturity, 176 available after May 9. | — |
| Marigolds | Mar 28 | May 9–May 16 | 141 | two-plantings: Plant May 9 and again by Jul 25; both mature before Sep 27. | Jul 25 |
| Melons | Apr 25 | May 23–May 30 | 113 | fits: 85 days to maturity, 113 available after May 23. | Jun 6 |
| Mint | — | May 9–May 23 | 176 | fits: 90 days to maturity, 176 available after May 9. | — |
| Nasturtiums | Apr 11 | May 9–May 16 | 141 | two-plantings: Plant May 9 and again by Jul 20; both mature before Sep 27. | Jul 20 |
| Pole Beans | — | May 16–May 30 | 134 | fits: 65 days to maturity, 134 available after May 16. | Jul 10 |
| Spaghetti Squash | Apr 25 | May 23–May 30 | 120 | fits: 90 days to maturity, 120 available after May 23. | Jun 8 |
| Sunflowers | — | May 9–May 23 | 141 | fits: 70 days to maturity, 141 available after May 9. | Jul 5 |
| Tomatillos | Mar 14 | May 16–May 23 | 120 | fits: 75 days to maturity, 120 available after May 16. | Jun 16 |
| Watermelon | Apr 25 | May 16–May 23 | 120 | fits: 80 days to maturity, 120 available after May 16. | Jun 11 |
| Yellow Squash | Apr 25 | May 23–May 30 | 127 | two-plantings: Plant May 23 and again by Jul 20; both mature before Sep 27. | Jul 20 |
| Zinnias | Apr 11 | May 9–May 23 | 141 | two-plantings: Plant May 9 and again by Jul 15; both mature before Sep 27. | Jul 15 |
Month by month in Youngstown
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 14), Lavender (Feb 14), Onion (Feb 14), Rosemary (Feb 14), Celery (Feb 28), Collards (Feb 28), +5 more. |
| March | Start indoors: Broccoli (Mar 14), Brussel Sprouts (Mar 14), Cabbage (Mar 14), Lettuce (Mar 14), Sage (Mar 14), Swiss Chard (Mar 14), +6 more. Direct sow from: Arugula (Mar 14), Beets (Mar 14), Dill (Mar 14), Peas (Mar 14), Radish (Mar 14), Spinach (Mar 14), +1 more. |
| April | Start indoors: Basil (Apr 4), Tomato (Apr 4), Bok Choy (Apr 11), Corn (Apr 11), Cosmos (Apr 11), Nasturtiums (Apr 11), +11 more. Direct sow from: Cilantro (Apr 11), Turnip (Apr 11), Carrots (Apr 18), Potatoes (Apr 25). Transplant from: Broccoli (Apr 11), Brussel Sprouts (Apr 11), Cabbage (Apr 11), Collards (Apr 11), Kale (Apr 11), Lettuce (Apr 11), +4 more. Plant: Strawberry (Apr 4). |
| May | Direct sow from: Sunflowers (May 9), Beans (May 16), Pole Beans (May 16). Transplant from: Bok Choy (May 2), Cauliflower (May 2), Cosmos (May 9), Lavender (May 9), Marigolds (May 9), Mint (May 9), +25 more. Last frost around May 9. Last sowing dates: Butternut Squash (May 29), Pumpkin (May 29). |
| June | Last sowing dates: Cantaloupe (Jun 6), Celery (Jun 6), Melons (Jun 6), Spaghetti Squash (Jun 8), Tomato (Jun 11), Watermelon (Jun 11), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 5), Brussel Sprouts (Jul 10), Pole Beans (Jul 10), Basil (Jul 15), Cosmos (Jul 15), Cucumber (Jul 15), +11 more. |
| August | Last sowing dates: Cabbage (Aug 9), Carrots (Aug 9), Beets (Aug 10), Dill (Aug 10), Swiss Chard (Aug 10), Calendula (Aug 15), +8 more. |
| September | Last sowing dates: Arugula (Sep 8), Spinach (Sep 8), Radish (Sep 9). |
| October | Direct sow from: Garlic (Oct 11). First frost around October 11. |
| November | Last sowing dates: Garlic (Nov 1). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Youngstown, OH (ZIP 44502)?
The median last spring frost date for Youngstown, OH (ZIP code 44502) is around May 9. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 24; one in ten it runs past May 27.
What is the first fall frost date in Youngstown, OH?
The median first fall frost date for Youngstown, OH is around October 11. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around September 21 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Youngstown, OH?
The frost-free growing season in Youngstown is about 155 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Youngstown (155 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Youngstown, OH?
Youngstown, OH is in USDA hardiness zone 6a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Youngstown, OH?
Start tomatoes indoors Apr 4 and plant out May 23 in Youngstown. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Youngstown?
Two: plant Apr 11 and again by Aug 20; both mature before Oct 18.
When do I plant garlic in Youngstown?
Oct 11 to Nov 1; it overwinters and is ready the following summer.
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