Frost Dates for Saint Clairsville, OH 43950
Last spring frost April 30 · First fall frost October 18 · 171 frost-free days · USDA Zone 6b
ZIP 43950 has about 16,400 people.
Moderate season: 171 frost-free days. Spring frost risk spans April 16–May 13 (27 days). Fall frost risk spans October 4–November 1 (28 days).
Frost probability for 43950
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 13 | April 30 | April 16 |
| Fall (first frost) | October 4 | October 18 | November 1 |
Dates come from NOAA 1971–2000 freeze probabilities at MOUNDSVILLE (25.1 km away); the 50% date is the median year.
Which crops fit a 171-day season in Saint Clairsville
In Saint Clairsville (171 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 26 | May 14–May 21 | 129 | fits: 80 days to maturity, 129 available after May 14. | Jun 18 |
| Pepper | Mar 19 | May 14–May 21 | 129 | fits: 75 days to maturity, 129 available after May 14. | Jun 23 |
| Lettuce | Mar 5 | Apr 2–Apr 9 | 206 | two-plantings: Plant Apr 2 and again by Aug 27; both mature before Oct 25. | Aug 27 |
| Carrots | — | Apr 9–Apr 16 | 213 | fits: 70 days to maturity, 213 available after Apr 9. | Aug 16 |
| Cucumber | Apr 9 | May 14–May 21 | 143 | two-plantings: Plant May 14 and again by Jul 22; both mature before Oct 4. | Jul 22 |
| Beans | — | May 7–May 21 | 157 | two-plantings: Plant May 7 and again by Jul 29; both mature before Oct 11. | Jul 29 |
| Peas | — | Mar 5–May 14 | 234 | fits: 65 days to maturity, 234 available after Mar 5. | Aug 7 |
| Zucchini | Apr 16 | May 14–May 21 | 143 | two-plantings: Plant May 14 and again by Jul 27; both mature before Oct 4. | Jul 27 |
| Onion | Feb 5 | Apr 2–Apr 16 | 206 | fits: 100 days to maturity, 206 available after Apr 2. | — |
| Spinach | — | Mar 5–Apr 23 | 248 | two-plantings: Plant Mar 5 and again by Sep 15; both mature before Nov 8. | Sep 15 |
| Kale | Feb 19 | Apr 2–Apr 16 | 220 | two-plantings: Plant Apr 2 and again by Aug 31; both mature before Nov 8. | Aug 31 |
| Broccoli | Mar 5 | Apr 2–Apr 16 | 206 | fits: 80 days to maturity, 206 available after Apr 2. | Jul 23 |
| Cabbage | Mar 5 | Apr 2–Apr 16 | 220 | fits: 70 days to maturity, 220 available after Apr 2. | Aug 16 |
| Radish | — | Mar 5–May 28 | 234 | two-plantings: Plant Mar 5 and again by Sep 16; both mature before Oct 25. | Sep 16 |
| Beets | — | Mar 5–May 28 | 234 | two-plantings: Plant Mar 5 and again by Aug 17; both mature before Oct 25. | Aug 17 |
| Potatoes | — | Apr 16–Apr 23 | 192 | fits: 90 days to maturity, 192 available after Apr 16. | — |
| Garlic | — | Oct 18 | 276 | overwinter: Plant Oct 18 to Nov 8; harvest the following summer. | Nov 8 |
| Strawberry | — | Mar 26–May 21 | 227 | perennial: A perennial: plant Mar 26; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 2 | May 7–May 14 | 143 | fits: 75 days to maturity, 143 available after May 7. | Jun 30 |
| Pumpkin | Apr 16 | May 14–May 14 | 136 | fits: 100 days to maturity, 136 available after May 14. | Jun 5 |
| Cauliflower | Mar 19 | Apr 23–May 7 | 185 | fits: 75 days to maturity, 185 available after Apr 23. | Jul 28 |
| Swiss Chard | Mar 5 | Apr 16–Apr 16 | 192 | two-plantings: Plant Apr 16 and again by Aug 17; both mature before Oct 25. | Aug 17 |
| Arugula | — | Mar 5–May 28 | 248 | two-plantings: Plant Mar 5 and again by Sep 15; both mature before Nov 8. | Sep 15 |
| Brussel Sprouts | Mar 5 | Apr 2–Apr 16 | 220 | fits: 100 days to maturity, 220 available after Apr 2. | Jul 17 |
| Butternut Squash | Apr 16 | May 14–May 21 | 136 | fits: 100 days to maturity, 136 available after May 14. | Jun 5 |
| Eggplant | Mar 12 | May 14–May 21 | 129 | fits: 70 days to maturity, 129 available after May 14. | Jun 28 |
| Okra | Apr 2 | May 7–May 14 | 150 | two-plantings: Plant May 7 and again by Jul 27; both mature before Oct 4. | Jul 27 |
| Basil | Mar 26 | May 21–May 21 | 136 | two-plantings: Plant May 21 and again by Jul 22; both mature before Oct 4. | Jul 22 |
| Cilantro | — | Apr 2–Apr 23 | 206 | two-plantings: Plant Apr 2 and again by Aug 22; both mature before Oct 25. | Aug 22 |
| Parsley | Feb 19 | May 7–May 14 | 171 | fits: 70 days to maturity, 171 available after May 7. | Aug 2 |
| Celery | Feb 19 | May 7–May 21 | 171 | fits: 120 days to maturity, 171 available after May 7. | Jun 13 |
| Scallions | Feb 19 | Apr 2–Apr 16 | 220 | two-plantings: Plant Apr 2 and again by Aug 26; both mature before Nov 8. | Aug 26 |
| Turnip | — | Apr 2–Apr 16 | 220 | two-plantings: Plant Apr 2 and again by Sep 5; both mature before Nov 8. | Sep 5 |
| Kohlrabi | — | Mar 19–Apr 2 | 234 | two-plantings: Plant Mar 19 and again by Aug 31; both mature before Nov 8. | Aug 31 |
| Bok Choy | Apr 2 | Apr 23–Apr 30 | 185 | two-plantings: Plant Apr 23 and again by Aug 27; both mature before Oct 25. | Aug 27 |
| Collards | Feb 19 | Apr 2–Apr 16 | 220 | two-plantings: Plant Apr 2 and again by Aug 26; both mature before Nov 8. | Aug 26 |
| Cantaloupe | Apr 16 | May 14–May 21 | 129 | fits: 85 days to maturity, 129 available after May 14. | Jun 13 |
| Chives | Feb 5 | May 7–May 14 | 185 | fits: 90 days to maturity, 185 available after May 7. | — |
| Dill | — | Mar 5–May 28 | 234 | two-plantings: Plant Mar 5 and again by Aug 17; both mature before Oct 25. | Aug 17 |
| Oregano | Feb 19 | May 7–May 14 | 185 | fits: 80 days to maturity, 185 available after May 7. | — |
| Rosemary | Feb 5 | May 7–May 14 | 171 | fits: 80 days to maturity, 171 available after May 7. | — |
| Sage | Mar 5 | May 7–May 14 | 185 | fits: 75 days to maturity, 185 available after May 7. | — |
| Thyme | Feb 19 | May 7–May 14 | 185 | fits: 90 days to maturity, 185 available after May 7. | — |
| Calendula | Mar 19 | Apr 16–Apr 30 | 192 | two-plantings: Plant Apr 16 and again by Aug 22; both mature before Oct 25. | Aug 22 |
| Cosmos | Apr 2 | Apr 30–May 14 | 157 | two-plantings: Plant Apr 30 and again by Jul 22; both mature before Oct 4. | Jul 22 |
| Lavender | Feb 5 | Apr 30–May 14 | 192 | fits: 90 days to maturity, 192 available after Apr 30. | — |
| Marigolds | Mar 19 | Apr 30–May 7 | 157 | two-plantings: Plant Apr 30 and again by Aug 1; both mature before Oct 4. | Aug 1 |
| Melons | Apr 16 | May 14–May 21 | 129 | fits: 85 days to maturity, 129 available after May 14. | Jun 13 |
| Mint | — | Apr 30–May 14 | 192 | fits: 90 days to maturity, 192 available after Apr 30. | — |
| Nasturtiums | Apr 2 | Apr 30–May 7 | 157 | two-plantings: Plant Apr 30 and again by Jul 27; both mature before Oct 4. | Jul 27 |
| Pole Beans | — | May 7–May 21 | 150 | fits: 65 days to maturity, 150 available after May 7. | Jul 17 |
| Spaghetti Squash | Apr 16 | May 14–May 21 | 136 | fits: 90 days to maturity, 136 available after May 14. | Jun 15 |
| Sunflowers | — | Apr 30–May 14 | 157 | fits: 70 days to maturity, 157 available after Apr 30. | Jul 12 |
| Tomatillos | Mar 5 | May 7–May 14 | 136 | fits: 75 days to maturity, 136 available after May 7. | Jun 23 |
| Watermelon | Apr 16 | May 7–May 14 | 136 | fits: 80 days to maturity, 136 available after May 7. | Jun 18 |
| Yellow Squash | Apr 16 | May 14–May 21 | 143 | two-plantings: Plant May 14 and again by Jul 27; both mature before Oct 4. | Jul 27 |
| Zinnias | Apr 2 | Apr 30–May 14 | 157 | two-plantings: Plant Apr 30 and again by Jul 22; both mature before Oct 4. | Jul 22 |
Month by month in Saint Clairsville
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 5), Lavender (Feb 5), Onion (Feb 5), Rosemary (Feb 5), Celery (Feb 19), Collards (Feb 19), +5 more. |
| March | Start indoors: Broccoli (Mar 5), Brussel Sprouts (Mar 5), Cabbage (Mar 5), Lettuce (Mar 5), Sage (Mar 5), Swiss Chard (Mar 5), +8 more. Direct sow from: Arugula (Mar 5), Beets (Mar 5), Dill (Mar 5), Peas (Mar 5), Radish (Mar 5), Spinach (Mar 5), +1 more. Plant: Strawberry (Mar 26). |
| April | Start indoors: Bok Choy (Apr 2), Corn (Apr 2), Cosmos (Apr 2), Nasturtiums (Apr 2), Okra (Apr 2), Zinnias (Apr 2), +9 more. Direct sow from: Cilantro (Apr 2), Turnip (Apr 2), Carrots (Apr 9), Potatoes (Apr 16), Sunflowers (Apr 30). Transplant from: Broccoli (Apr 2), Brussel Sprouts (Apr 2), Cabbage (Apr 2), Collards (Apr 2), Kale (Apr 2), Lettuce (Apr 2), +12 more. Last frost around April 30. |
| May | Direct sow from: Beans (May 7), Pole Beans (May 7). Transplant from: Celery (May 7), Chives (May 7), Corn (May 7), Okra (May 7), Oregano (May 7), Parsley (May 7), +17 more. |
| June | Last sowing dates: Butternut Squash (Jun 5), Pumpkin (Jun 5), Cantaloupe (Jun 13), Celery (Jun 13), Melons (Jun 13), Spaghetti Squash (Jun 15), +6 more. |
| July | Last sowing dates: Sunflowers (Jul 12), Brussel Sprouts (Jul 17), Pole Beans (Jul 17), Basil (Jul 22), Cosmos (Jul 22), Cucumber (Jul 22), +8 more. |
| August | Last sowing dates: Marigolds (Aug 1), Parsley (Aug 2), Peas (Aug 7), Cabbage (Aug 16), Carrots (Aug 16), Beets (Aug 17), +10 more. |
| September | Last sowing dates: Turnip (Sep 5), Arugula (Sep 15), Spinach (Sep 15), Radish (Sep 16). |
| October | Direct sow from: Garlic (Oct 18). First frost around October 18. |
| November | Last sowing dates: Garlic (Nov 8). |
| 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 Saint Clairsville, OH (ZIP 43950)?
The median last spring frost date for Saint Clairsville, OH (ZIP code 43950) is around April 30. 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 16; one in ten it runs past May 13.
What is the first fall frost date in Saint Clairsville, OH?
The median first fall frost date for Saint Clairsville, OH is around October 18. 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 October 4 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Saint Clairsville, OH?
The frost-free growing season in Saint Clairsville is about 171 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 Saint Clairsville (171 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Saint Clairsville, OH?
Saint Clairsville, OH is in USDA hardiness zone 6b (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 Saint Clairsville, OH?
Start tomatoes indoors Mar 26 and plant out May 14 in Saint Clairsville. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Saint Clairsville?
Two: plant Apr 2 and again by Aug 27; both mature before Oct 25.
When do I plant garlic in Saint Clairsville?
Oct 18 to Nov 8; it overwinters and is ready the following summer.
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