Frost Dates for Tiverton, RI 02878
Last spring frost April 16 · First fall frost November 2 · 200 frost-free days · USDA Zone 7a
ZIP 02878 has about 16,200 people.
Long season: 200 frost-free days. Spring frost risk spans April 3–April 29 (26 days). Fall frost risk spans October 11–November 21 (41 days).
Frost probability for 02878
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 29 | April 16 | April 3 |
| Fall (first frost) | October 11 | November 2 | November 21 |
Dates come from NOAA 1971–2000 freeze probabilities at PROVIDENCE (24.9 km away); the 50% date is the median year.
Which crops fit a 200-day season in Tiverton
In Tiverton (200 frost-free days, a long 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 12 | Apr 30–May 7 | 158 | fits: 80 days to maturity, 158 available after Apr 30. | Jul 3 |
| Pepper | Mar 5 | Apr 30–May 7 | 158 | fits: 75 days to maturity, 158 available after Apr 30. | Jul 8 |
| Lettuce | Feb 19 | Mar 19–Mar 26 | 235 | two-plantings: Plant Mar 19 and again by Sep 11; both mature before Nov 9. | Sep 11 |
| Carrots | — | Mar 26–Apr 2 | 242 | fits: 70 days to maturity, 242 available after Mar 26. | Aug 31 |
| Cucumber | Mar 26 | Apr 30–May 7 | 172 | two-plantings: Plant Apr 30 and again by Aug 6; both mature before Oct 19. | Aug 6 |
| Beans | — | Apr 23–May 7 | 186 | two-plantings: Plant Apr 23 and again by Aug 13; both mature before Oct 26. | Aug 13 |
| Peas | — | Feb 19–Apr 30 | 263 | fits: 65 days to maturity, 263 available after Feb 19. | Aug 22 |
| Zucchini | Apr 2 | Apr 30–May 7 | 172 | two-plantings: Plant Apr 30 and again by Aug 11; both mature before Oct 19. | Aug 11 |
| Onion | Jan 22 | Mar 19–Apr 2 | 235 | fits: 100 days to maturity, 235 available after Mar 19. | — |
| Spinach | — | Feb 19–Apr 9 | 277 | two-plantings: Plant Feb 19 and again by Sep 30; both mature before Nov 23. | Sep 30 |
| Kale | Feb 5 | Mar 19–Apr 2 | 249 | two-plantings: Plant Mar 19 and again by Sep 15; both mature before Nov 23. | Sep 15 |
| Broccoli | Feb 19 | Mar 19–Apr 2 | 235 | fits: 80 days to maturity, 235 available after Mar 19. | Aug 7 |
| Cabbage | Feb 19 | Mar 19–Apr 2 | 249 | fits: 70 days to maturity, 249 available after Mar 19. | Aug 31 |
| Radish | — | Feb 19–May 14 | 263 | two-plantings: Plant Feb 19 and again by Oct 1; both mature before Nov 9. | Oct 1 |
| Beets | — | Feb 19–May 14 | 263 | two-plantings: Plant Feb 19 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Potatoes | — | Apr 2–Apr 9 | 221 | fits: 90 days to maturity, 221 available after Apr 2. | — |
| Garlic | — | Nov 2 | 305 | overwinter: Plant Nov 2 to Nov 23; harvest the following summer. | Nov 23 |
| Strawberry | — | Mar 12–May 7 | 256 | perennial: A perennial: plant Mar 12; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 19 | Apr 23–Apr 30 | 172 | fits: 75 days to maturity, 172 available after Apr 23. | Jul 15 |
| Pumpkin | Apr 2 | Apr 30–Apr 30 | 165 | fits: 100 days to maturity, 165 available after Apr 30. | Jun 20 |
| Cauliflower | Mar 5 | Apr 9–Apr 23 | 214 | fits: 75 days to maturity, 214 available after Apr 9. | Aug 12 |
| Swiss Chard | Feb 19 | Apr 2–Apr 2 | 221 | two-plantings: Plant Apr 2 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Arugula | — | Feb 19–May 14 | 277 | two-plantings: Plant Feb 19 and again by Sep 30; both mature before Nov 23. | Sep 30 |
| Brussel Sprouts | Feb 19 | Mar 19–Apr 2 | 249 | fits: 100 days to maturity, 249 available after Mar 19. | Aug 1 |
| Butternut Squash | Apr 2 | Apr 30–May 7 | 165 | fits: 100 days to maturity, 165 available after Apr 30. | Jun 20 |
| Eggplant | Feb 26 | Apr 30–May 7 | 158 | fits: 70 days to maturity, 158 available after Apr 30. | Jul 13 |
| Okra | Mar 19 | Apr 23–Apr 30 | 179 | two-plantings: Plant Apr 23 and again by Aug 11; both mature before Oct 19. | Aug 11 |
| Basil | Mar 12 | May 7–May 7 | 165 | two-plantings: Plant May 7 and again by Aug 6; both mature before Oct 19. | Aug 6 |
| Cilantro | — | Mar 19–Apr 9 | 235 | two-plantings: Plant Mar 19 and again by Sep 6; both mature before Nov 9. | Sep 6 |
| Parsley | Feb 5 | Apr 23–Apr 30 | 200 | fits: 70 days to maturity, 200 available after Apr 23. | Aug 17 |
| Celery | Feb 5 | Apr 23–May 7 | 200 | fits: 120 days to maturity, 200 available after Apr 23. | Jun 28 |
| Scallions | Feb 5 | Mar 19–Apr 2 | 249 | two-plantings: Plant Mar 19 and again by Sep 10; both mature before Nov 23. | Sep 10 |
| Turnip | — | Mar 19–Apr 2 | 249 | two-plantings: Plant Mar 19 and again by Sep 20; both mature before Nov 23. | Sep 20 |
| Kohlrabi | — | Mar 5–Mar 19 | 263 | two-plantings: Plant Mar 5 and again by Sep 15; both mature before Nov 23. | Sep 15 |
| Bok Choy | Mar 19 | Apr 9–Apr 16 | 214 | two-plantings: Plant Apr 9 and again by Sep 11; both mature before Nov 9. | Sep 11 |
| Collards | Feb 5 | Mar 19–Apr 2 | 249 | two-plantings: Plant Mar 19 and again by Sep 10; both mature before Nov 23. | Sep 10 |
| Cantaloupe | Apr 2 | Apr 30–May 7 | 158 | fits: 85 days to maturity, 158 available after Apr 30. | Jun 28 |
| Chives | Jan 22 | Apr 23–Apr 30 | 214 | fits: 90 days to maturity, 214 available after Apr 23. | — |
| Dill | — | Feb 19–May 14 | 263 | two-plantings: Plant Feb 19 and again by Sep 1; both mature before Nov 9. | Sep 1 |
| Oregano | Feb 5 | Apr 23–Apr 30 | 214 | fits: 80 days to maturity, 214 available after Apr 23. | — |
| Rosemary | Jan 22 | Apr 23–Apr 30 | 200 | fits: 80 days to maturity, 200 available after Apr 23. | — |
| Sage | Feb 19 | Apr 23–Apr 30 | 214 | fits: 75 days to maturity, 214 available after Apr 23. | — |
| Thyme | Feb 5 | Apr 23–Apr 30 | 214 | fits: 90 days to maturity, 214 available after Apr 23. | — |
| Calendula | Mar 5 | Apr 2–Apr 16 | 221 | two-plantings: Plant Apr 2 and again by Sep 6; both mature before Nov 9. | Sep 6 |
| Cosmos | Mar 19 | Apr 16–Apr 30 | 186 | two-plantings: Plant Apr 16 and again by Aug 6; both mature before Oct 19. | Aug 6 |
| Lavender | Jan 22 | Apr 16–Apr 30 | 221 | fits: 90 days to maturity, 221 available after Apr 16. | — |
| Marigolds | Mar 5 | Apr 16–Apr 23 | 186 | two-plantings: Plant Apr 16 and again by Aug 16; both mature before Oct 19. | Aug 16 |
| Melons | Apr 2 | Apr 30–May 7 | 158 | fits: 85 days to maturity, 158 available after Apr 30. | Jun 28 |
| Mint | — | Apr 16–Apr 30 | 221 | fits: 90 days to maturity, 221 available after Apr 16. | — |
| Nasturtiums | Mar 19 | Apr 16–Apr 23 | 186 | two-plantings: Plant Apr 16 and again by Aug 11; both mature before Oct 19. | Aug 11 |
| Pole Beans | — | Apr 23–May 7 | 179 | fits: 65 days to maturity, 179 available after Apr 23. | Aug 1 |
| Spaghetti Squash | Apr 2 | Apr 30–May 7 | 165 | fits: 90 days to maturity, 165 available after Apr 30. | Jun 30 |
| Sunflowers | — | Apr 16–Apr 30 | 186 | fits: 70 days to maturity, 186 available after Apr 16. | Jul 27 |
| Tomatillos | Feb 19 | Apr 23–Apr 30 | 165 | fits: 75 days to maturity, 165 available after Apr 23. | Jul 8 |
| Watermelon | Apr 2 | Apr 23–Apr 30 | 165 | fits: 80 days to maturity, 165 available after Apr 23. | Jul 3 |
| Yellow Squash | Apr 2 | Apr 30–May 7 | 172 | two-plantings: Plant Apr 30 and again by Aug 11; both mature before Oct 19. | Aug 11 |
| Zinnias | Mar 19 | Apr 16–Apr 30 | 186 | two-plantings: Plant Apr 16 and again by Aug 6; both mature before Oct 19. | Aug 6 |
Month by month in Tiverton
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 22), Lavender (Jan 22), Onion (Jan 22), Rosemary (Jan 22). |
| February | Start indoors: Celery (Feb 5), Collards (Feb 5), Kale (Feb 5), Oregano (Feb 5), Parsley (Feb 5), Scallions (Feb 5), +9 more. Direct sow from: Arugula (Feb 19), Beets (Feb 19), Dill (Feb 19), Peas (Feb 19), Radish (Feb 19), Spinach (Feb 19). |
| March | Start indoors: Calendula (Mar 5), Cauliflower (Mar 5), Marigolds (Mar 5), Pepper (Mar 5), Basil (Mar 12), Tomato (Mar 12), +7 more. Direct sow from: Kohlrabi (Mar 5), Cilantro (Mar 19), Turnip (Mar 19), Carrots (Mar 26). Transplant from: Broccoli (Mar 19), Brussel Sprouts (Mar 19), Cabbage (Mar 19), Collards (Mar 19), Kale (Mar 19), Lettuce (Mar 19), +2 more. Plant: Strawberry (Mar 12). |
| April | Start indoors: Butternut Squash (Apr 2), Cantaloupe (Apr 2), Melons (Apr 2), Pumpkin (Apr 2), Spaghetti Squash (Apr 2), Watermelon (Apr 2), +2 more. Direct sow from: Potatoes (Apr 2), Sunflowers (Apr 16), Beans (Apr 23), Pole Beans (Apr 23). Transplant from: Calendula (Apr 2), Swiss Chard (Apr 2), Bok Choy (Apr 9), Cauliflower (Apr 9), Cosmos (Apr 16), Lavender (Apr 16), +26 more. Last frost around April 16. |
| May | Transplant from: Basil (May 7). |
| June | Last sowing dates: Butternut Squash (Jun 20), Pumpkin (Jun 20), Cantaloupe (Jun 28), Celery (Jun 28), Melons (Jun 28), Spaghetti Squash (Jun 30). |
| July | Last sowing dates: Tomato (Jul 3), Watermelon (Jul 3), Pepper (Jul 8), Tomatillos (Jul 8), Eggplant (Jul 13), Corn (Jul 15), +1 more. |
| August | Last sowing dates: Brussel Sprouts (Aug 1), Pole Beans (Aug 1), Basil (Aug 6), Cosmos (Aug 6), Cucumber (Aug 6), Zinnias (Aug 6), +12 more. |
| September | Last sowing dates: Beets (Sep 1), Dill (Sep 1), Swiss Chard (Sep 1), Calendula (Sep 6), Cilantro (Sep 6), Collards (Sep 10), +8 more. |
| October | Last sowing dates: Radish (Oct 1). |
| November | Direct sow from: Garlic (Nov 2). First frost around November 2. Last sowing dates: Garlic (Nov 23). |
| December | Harvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year. |
Frequently Asked Questions
What is the last frost date for Tiverton, RI (ZIP 02878)?
The median last spring frost date for Tiverton, RI (ZIP code 02878) is around April 16. 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 3; one in ten it runs past April 29.
What is the first fall frost date in Tiverton, RI?
The median first fall frost date for Tiverton, RI is around November 2. 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 11 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Tiverton, RI?
The frost-free growing season in Tiverton is about 200 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 Tiverton (200 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Tiverton, RI?
Tiverton, RI is in USDA hardiness zone 7a (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 Tiverton, RI?
Start tomatoes indoors Mar 12 and plant out Apr 30 in Tiverton. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Tiverton?
Two: plant Mar 19 and again by Sep 11; both mature before Nov 9.
When do I plant garlic in Tiverton?
Nov 2 to Nov 23; it overwinters and is ready the following summer.
Can I get two tomato crops in Tiverton?
Yes: plant out Apr 30 for a summer crop, and set out a second round of transplants by Jul 3 for a fall crop.
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