Frost Dates for Goffstown, NH 03045
Last spring frost May 14 · First fall frost September 26 · 135 frost-free days · USDA Zone 6a
ZIP 03045 has about 14,100 people.
Moderate season: 135 frost-free days. Spring frost risk spans April 28–May 31 (33 days). Fall frost risk spans September 9–October 11 (32 days).
Frost probability for 03045
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 31 | May 14 | April 28 |
| Fall (first frost) | September 9 | September 26 | October 11 |
Dates come from NOAA 1971–2000 freeze probabilities at MILFORD (21.1 km away); the 50% date is the median year.
Which crops fit a 135-day season in Goffstown
In Goffstown (135 frost-free days, a moderate season), 39 of 56 planner crops fit outright, 16 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 9 | May 28–Jun 4 | 93 | fits: 80 days to maturity, 93 available after May 28. | — |
| Pepper | Apr 2 | May 28–Jun 4 | 93 | fits: 75 days to maturity, 93 available after May 28. | Jun 1 |
| Lettuce | Mar 19 | Apr 16–Apr 23 | 170 | two-plantings: Plant Apr 16 and again by Aug 5; both mature before Oct 3. | Aug 5 |
| Carrots | — | Apr 23–Apr 30 | 177 | fits: 70 days to maturity, 177 available after Apr 23. | Jul 25 |
| Cucumber | Apr 23 | May 28–Jun 4 | 107 | fits: 60 days to maturity, 107 available after May 28. | Jun 30 |
| Beans | — | May 21–Jun 4 | 121 | fits: 60 days to maturity, 121 available after May 21. | Jul 7 |
| Peas | — | Mar 19–May 28 | 198 | fits: 65 days to maturity, 198 available after Mar 19. | Jul 16 |
| Zucchini | Apr 30 | May 28–Jun 4 | 107 | fits: 55 days to maturity, 107 available after May 28. | Jul 5 |
| Onion | Feb 19 | Apr 16–Apr 30 | 170 | fits: 100 days to maturity, 170 available after Apr 16. | — |
| Spinach | — | Mar 19–May 7 | 212 | two-plantings: Plant Mar 19 and again by Aug 24; both mature before Oct 17. | Aug 24 |
| Kale | Mar 5 | Apr 16–Apr 30 | 184 | two-plantings: Plant Apr 16 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Broccoli | Mar 19 | Apr 16–Apr 30 | 170 | fits: 80 days to maturity, 170 available after Apr 16. | Jul 1 |
| Cabbage | Mar 19 | Apr 16–Apr 30 | 184 | fits: 70 days to maturity, 184 available after Apr 16. | Jul 25 |
| Radish | — | Mar 19–Jun 11 | 198 | two-plantings: Plant Mar 19 and again by Aug 25; both mature before Oct 3. | Aug 25 |
| Beets | — | Mar 19–Jun 11 | 198 | two-plantings: Plant Mar 19 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Potatoes | — | Apr 30–May 7 | 156 | fits: 90 days to maturity, 156 available after Apr 30. | — |
| Garlic | — | Sep 26 | 240 | overwinter: Plant Sep 26 to Oct 17; harvest the following summer. | Oct 17 |
| Strawberry | — | Apr 9–Jun 4 | 191 | perennial: A perennial: plant Apr 9; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 16 | May 21–May 28 | 107 | fits: 75 days to maturity, 107 available after May 21. | Jun 8 |
| Pumpkin | Apr 30 | May 28–May 28 | 100 | fits: 100 days to maturity, 100 available after May 28. | — |
| Cauliflower | Apr 2 | May 7–May 21 | 149 | fits: 75 days to maturity, 149 available after May 7. | Jul 6 |
| Swiss Chard | Mar 19 | Apr 30–Apr 30 | 156 | two-plantings: Plant Apr 30 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Arugula | — | Mar 19–Jun 11 | 212 | two-plantings: Plant Mar 19 and again by Aug 24; both mature before Oct 17. | Aug 24 |
| Brussel Sprouts | Mar 19 | Apr 16–Apr 30 | 184 | fits: 100 days to maturity, 184 available after Apr 16. | Jun 25 |
| Butternut Squash | Apr 30 | May 28–Jun 4 | 100 | fits: 100 days to maturity, 100 available after May 28. | — |
| Eggplant | Mar 26 | May 28–Jun 4 | 93 | fits: 70 days to maturity, 93 available after May 28. | Jun 6 |
| Okra | Apr 16 | May 21–May 28 | 114 | fits: 55 days to maturity, 114 available after May 21. | Jul 5 |
| Basil | Apr 9 | Jun 4–Jun 4 | 100 | fits: 60 days to maturity, 100 available after Jun 4. | Jun 30 |
| Cilantro | — | Apr 16–May 7 | 170 | two-plantings: Plant Apr 16 and again by Jul 31; both mature before Oct 3. | Jul 31 |
| Parsley | Mar 5 | May 21–May 28 | 135 | fits: 70 days to maturity, 135 available after May 21. | Jul 11 |
| Celery | Mar 5 | May 21–Jun 4 | 135 | fits: 120 days to maturity, 135 available after May 21. | May 22 |
| Scallions | Mar 5 | Apr 16–Apr 30 | 184 | two-plantings: Plant Apr 16 and again by Aug 4; both mature before Oct 17. | Aug 4 |
| Turnip | — | Apr 16–Apr 30 | 184 | two-plantings: Plant Apr 16 and again by Aug 14; both mature before Oct 17. | Aug 14 |
| Kohlrabi | — | Apr 2–Apr 16 | 198 | two-plantings: Plant Apr 2 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Bok Choy | Apr 16 | May 7–May 14 | 149 | two-plantings: Plant May 7 and again by Aug 5; both mature before Oct 3. | Aug 5 |
| Collards | Mar 5 | Apr 16–Apr 30 | 184 | two-plantings: Plant Apr 16 and again by Aug 4; both mature before Oct 17. | Aug 4 |
| Cantaloupe | Apr 30 | May 28–Jun 4 | 93 | fits: 85 days to maturity, 93 available after May 28. | — |
| Chives | Feb 19 | May 21–May 28 | 149 | fits: 90 days to maturity, 149 available after May 21. | — |
| Dill | — | Mar 19–Jun 11 | 198 | two-plantings: Plant Mar 19 and again by Jul 26; both mature before Oct 3. | Jul 26 |
| Oregano | Mar 5 | May 21–May 28 | 149 | fits: 80 days to maturity, 149 available after May 21. | — |
| Rosemary | Feb 19 | May 21–May 28 | 135 | fits: 80 days to maturity, 135 available after May 21. | — |
| Sage | Mar 19 | May 21–May 28 | 149 | fits: 75 days to maturity, 149 available after May 21. | — |
| Thyme | Mar 5 | May 21–May 28 | 149 | fits: 90 days to maturity, 149 available after May 21. | — |
| Calendula | Apr 2 | Apr 30–May 14 | 156 | two-plantings: Plant Apr 30 and again by Jul 31; both mature before Oct 3. | Jul 31 |
| Cosmos | Apr 16 | May 14–May 28 | 121 | fits: 60 days to maturity, 121 available after May 14. | Jun 30 |
| Lavender | Feb 19 | May 14–May 28 | 156 | fits: 90 days to maturity, 156 available after May 14. | — |
| Marigolds | Apr 2 | May 14–May 21 | 121 | two-plantings: Plant May 14 and again by Jul 10; both mature before Sep 12. | Jul 10 |
| Melons | Apr 30 | May 28–Jun 4 | 93 | fits: 85 days to maturity, 93 available after May 28. | — |
| Mint | — | May 14–May 28 | 156 | fits: 90 days to maturity, 156 available after May 14. | — |
| Nasturtiums | Apr 16 | May 14–May 21 | 121 | fits: 55 days to maturity, 121 available after May 14. | Jul 5 |
| Pole Beans | — | May 21–Jun 4 | 114 | fits: 65 days to maturity, 114 available after May 21. | Jun 25 |
| Spaghetti Squash | Apr 30 | May 28–Jun 4 | 100 | fits: 90 days to maturity, 100 available after May 28. | — |
| Sunflowers | — | May 14–May 28 | 121 | fits: 70 days to maturity, 121 available after May 14. | Jun 20 |
| Tomatillos | Mar 19 | May 21–May 28 | 100 | fits: 75 days to maturity, 100 available after May 21. | Jun 1 |
| Watermelon | Apr 30 | May 21–May 28 | 100 | fits: 80 days to maturity, 100 available after May 21. | May 27 |
| Yellow Squash | Apr 30 | May 28–Jun 4 | 107 | fits: 55 days to maturity, 107 available after May 28. | Jul 5 |
| Zinnias | Apr 16 | May 14–May 28 | 121 | fits: 60 days to maturity, 121 available after May 14. | Jun 30 |
Month by month in Goffstown
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 19), Lavender (Feb 19), Onion (Feb 19), Rosemary (Feb 19). |
| March | Start indoors: Celery (Mar 5), Collards (Mar 5), Kale (Mar 5), Oregano (Mar 5), Parsley (Mar 5), Scallions (Mar 5), +9 more. Direct sow from: Arugula (Mar 19), Beets (Mar 19), Dill (Mar 19), Peas (Mar 19), Radish (Mar 19), Spinach (Mar 19). |
| April | Start indoors: Calendula (Apr 2), Cauliflower (Apr 2), Marigolds (Apr 2), Pepper (Apr 2), Basil (Apr 9), Tomato (Apr 9), +15 more. Direct sow from: Kohlrabi (Apr 2), Cilantro (Apr 16), Turnip (Apr 16), Carrots (Apr 23), Potatoes (Apr 30). Transplant from: Broccoli (Apr 16), Brussel Sprouts (Apr 16), Cabbage (Apr 16), Collards (Apr 16), Kale (Apr 16), Lettuce (Apr 16), +4 more. Plant: Strawberry (Apr 9). |
| May | Direct sow from: Sunflowers (May 14), Beans (May 21), Pole Beans (May 21). Transplant from: Bok Choy (May 7), Cauliflower (May 7), Cosmos (May 14), Lavender (May 14), Marigolds (May 14), Mint (May 14), +24 more. Last frost around May 14. Last sowing dates: Celery (May 22), Watermelon (May 27). |
| June | Transplant from: Basil (Jun 4). Last sowing dates: Pepper (Jun 1), Tomatillos (Jun 1), Eggplant (Jun 6), Corn (Jun 8), Sunflowers (Jun 20), Brussel Sprouts (Jun 25), +5 more. |
| July | Last sowing dates: Broccoli (Jul 1), Nasturtiums (Jul 5), Okra (Jul 5), Yellow Squash (Jul 5), Zucchini (Jul 5), Cauliflower (Jul 6), +11 more. |
| August | Last sowing dates: Collards (Aug 4), Scallions (Aug 4), Bok Choy (Aug 5), Lettuce (Aug 5), Kale (Aug 9), Kohlrabi (Aug 9), +4 more. |
| September | Direct sow from: Garlic (Sep 26). First frost around September 26. |
| October | Last sowing dates: Garlic (Oct 17). |
| November | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
| 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 Goffstown, NH (ZIP 03045)?
The median last spring frost date for Goffstown, NH (ZIP code 03045) is around May 14. 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 28; one in ten it runs past May 31.
What is the first fall frost date in Goffstown, NH?
The median first fall frost date for Goffstown, NH is around September 26. 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 9 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Goffstown, NH?
The frost-free growing season in Goffstown is about 135 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 Goffstown (135 frost-free days, a moderate season), 39 of 56 planner crops fit outright, 16 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Goffstown, NH?
Goffstown, NH 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 Goffstown, NH?
Start tomatoes indoors Apr 9 and plant out May 28 in Goffstown. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Goffstown?
Two: plant Apr 16 and again by Aug 5; both mature before Oct 3.
When do I plant garlic in Goffstown?
Sep 26 to Oct 17; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Bedford (ZIP 03110) has 142 frost-free days, 7 more than Goffstown (ZIP 03045). See Bedford ZIP 03110 frost dates
Nearby and related
- Frost dates for Bedford, NH 03110 (5.8 mi)
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