Frost Dates for Hibbing, MN 55746
Last spring frost May 27 · First fall frost September 15 · 111 frost-free days · USDA Zone 3b
ZIP 55746 has about 16,700 people.
Short season: 111 frost-free days. Spring frost risk spans May 14–June 10 (27 days). Fall frost risk spans September 3–September 26 (23 days).
Frost probability for 55746
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | June 10 | May 27 | May 14 |
| Fall (first frost) | September 3 | September 15 | September 26 |
Dates come from NOAA 1971–2000 freeze probabilities at HIBBING FAA AP (8.5 km away); the 50% date is the median year.
Which crops fit a 111-day season in Hibbing
In Hibbing (111 frost-free days, a short season), 30 of 56 planner crops fit outright, 15 get two plantings, 8 need an indoor start, 2 don't reliably mature, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 22 | Jun 10–Jun 17 | 69 | head-start: Even planted out Jun 10, the outdoor season is about 11 days short; choose an early variety or grow under cover. | — |
| Pepper | Apr 15 | Jun 10–Jun 17 | 69 | head-start: Even planted out Jun 10, the outdoor season is about 6 days short; choose an early variety or grow under cover. | — |
| Lettuce | Apr 1 | Apr 29–May 6 | 146 | two-plantings: Plant Apr 29 and again by Jul 25; both mature before Sep 22. | Jul 25 |
| Carrots | — | May 6–May 13 | 153 | fits: 70 days to maturity, 153 available after May 6. | Jul 14 |
| Cucumber | May 6 | Jun 10–Jun 17 | 83 | fits: 60 days to maturity, 83 available after Jun 10. | Jun 19 |
| Beans | — | Jun 3–Jun 17 | 97 | fits: 60 days to maturity, 97 available after Jun 3. | Jun 26 |
| Peas | — | Apr 1–Jun 10 | 174 | fits: 65 days to maturity, 174 available after Apr 1. | Jul 5 |
| Zucchini | May 13 | Jun 10–Jun 17 | 83 | fits: 55 days to maturity, 83 available after Jun 10. | Jun 24 |
| Onion | Mar 4 | Apr 29–May 13 | 146 | fits: 100 days to maturity, 146 available after Apr 29. | — |
| Spinach | — | Apr 1–May 20 | 188 | two-plantings: Plant Apr 1 and again by Aug 13; both mature before Oct 6. | Aug 13 |
| Kale | Mar 18 | Apr 29–May 13 | 160 | two-plantings: Plant Apr 29 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Broccoli | Apr 1 | Apr 29–May 13 | 146 | fits: 80 days to maturity, 146 available after Apr 29. | Jun 20 |
| Cabbage | Apr 1 | Apr 29–May 13 | 160 | fits: 70 days to maturity, 160 available after Apr 29. | Jul 14 |
| Radish | — | Apr 1–Jun 24 | 174 | two-plantings: Plant Apr 1 and again by Aug 14; both mature before Sep 22. | Aug 14 |
| Beets | — | Apr 1–Jun 24 | 174 | two-plantings: Plant Apr 1 and again by Jul 15; both mature before Sep 22. | Jul 15 |
| Potatoes | — | May 13–May 20 | 132 | fits: 90 days to maturity, 132 available after May 13. | — |
| Garlic | — | Sep 15 | 216 | overwinter: Plant Sep 15 to Oct 6; harvest the following summer. | Oct 6 |
| Strawberry | — | Apr 22–Jun 17 | 167 | perennial: A perennial: plant Apr 22; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 29 | Jun 3–Jun 10 | 83 | fits: 75 days to maturity, 83 available after Jun 3. | — |
| Pumpkin | May 13 | Jun 10–Jun 10 | 76 | no-fit: Needs 100 days; Hibbing has 76 after Jun 10. | — |
| Cauliflower | Apr 15 | May 20–Jun 3 | 125 | fits: 75 days to maturity, 125 available after May 20. | Jun 25 |
| Swiss Chard | Apr 1 | May 13–May 13 | 132 | two-plantings: Plant May 13 and again by Jul 15; both mature before Sep 22. | Jul 15 |
| Arugula | — | Apr 1–Jun 24 | 188 | two-plantings: Plant Apr 1 and again by Aug 13; both mature before Oct 6. | Aug 13 |
| Brussel Sprouts | Apr 1 | Apr 29–May 13 | 160 | fits: 100 days to maturity, 160 available after Apr 29. | Jun 14 |
| Butternut Squash | May 13 | Jun 10–Jun 17 | 76 | no-fit: Needs 100 days; Hibbing has 76 after Jun 10. | — |
| Eggplant | Apr 8 | Jun 10–Jun 17 | 69 | head-start: Even planted out Jun 10, the outdoor season is about 1 days short; choose an early variety or grow under cover. | — |
| Okra | Apr 29 | Jun 3–Jun 10 | 90 | fits: 55 days to maturity, 90 available after Jun 3. | Jun 24 |
| Basil | Apr 22 | Jun 17–Jun 17 | 76 | fits: 60 days to maturity, 76 available after Jun 17. | Jun 19 |
| Cilantro | — | Apr 29–May 20 | 146 | two-plantings: Plant Apr 29 and again by Jul 20; both mature before Sep 22. | Jul 20 |
| Parsley | Mar 18 | Jun 3–Jun 10 | 111 | fits: 70 days to maturity, 111 available after Jun 3. | Jun 30 |
| Celery | Mar 18 | Jun 3–Jun 17 | 111 | head-start: Even planted out Jun 3, the outdoor season is about 9 days short; choose an early variety or grow under cover. | — |
| Scallions | Mar 18 | Apr 29–May 13 | 160 | two-plantings: Plant Apr 29 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Turnip | — | Apr 29–May 13 | 160 | two-plantings: Plant Apr 29 and again by Aug 3; both mature before Oct 6. | Aug 3 |
| Kohlrabi | — | Apr 15–Apr 29 | 174 | two-plantings: Plant Apr 15 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Bok Choy | Apr 29 | May 20–May 27 | 125 | two-plantings: Plant May 20 and again by Jul 25; both mature before Sep 22. | Jul 25 |
| Collards | Mar 18 | Apr 29–May 13 | 160 | two-plantings: Plant Apr 29 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Cantaloupe | May 13 | Jun 10–Jun 17 | 69 | head-start: Even planted out Jun 10, the outdoor season is about 16 days short; choose an early variety or grow under cover. | — |
| Chives | Mar 4 | Jun 3–Jun 10 | 125 | fits: 90 days to maturity, 125 available after Jun 3. | — |
| Dill | — | Apr 1–Jun 24 | 174 | two-plantings: Plant Apr 1 and again by Jul 15; both mature before Sep 22. | Jul 15 |
| Oregano | Mar 18 | Jun 3–Jun 10 | 125 | fits: 80 days to maturity, 125 available after Jun 3. | — |
| Rosemary | Mar 4 | Jun 3–Jun 10 | 111 | fits: 80 days to maturity, 111 available after Jun 3. | — |
| Sage | Apr 1 | Jun 3–Jun 10 | 125 | fits: 75 days to maturity, 125 available after Jun 3. | — |
| Thyme | Mar 18 | Jun 3–Jun 10 | 125 | fits: 90 days to maturity, 125 available after Jun 3. | — |
| Calendula | Apr 15 | May 13–May 27 | 132 | two-plantings: Plant May 13 and again by Jul 20; both mature before Sep 22. | Jul 20 |
| Cosmos | Apr 29 | May 27–Jun 10 | 97 | fits: 60 days to maturity, 97 available after May 27. | Jun 19 |
| Lavender | Mar 4 | May 27–Jun 10 | 132 | fits: 90 days to maturity, 132 available after May 27. | — |
| Marigolds | Apr 15 | May 27–Jun 3 | 97 | fits: 50 days to maturity, 97 available after May 27. | Jun 29 |
| Melons | May 13 | Jun 10–Jun 17 | 69 | head-start: Even planted out Jun 10, the outdoor season is about 16 days short; choose an early variety or grow under cover. | — |
| Mint | — | May 27–Jun 10 | 132 | fits: 90 days to maturity, 132 available after May 27. | — |
| Nasturtiums | Apr 29 | May 27–Jun 3 | 97 | fits: 55 days to maturity, 97 available after May 27. | Jun 24 |
| Pole Beans | — | Jun 3–Jun 17 | 90 | fits: 65 days to maturity, 90 available after Jun 3. | Jun 14 |
| Spaghetti Squash | May 13 | Jun 10–Jun 17 | 76 | head-start: Even planted out Jun 10, the outdoor season is about 14 days short; choose an early variety or grow under cover. | — |
| Sunflowers | — | May 27–Jun 10 | 97 | fits: 70 days to maturity, 97 available after May 27. | Jun 9 |
| Tomatillos | Apr 1 | Jun 3–Jun 10 | 76 | fits: 75 days to maturity, 76 available after Jun 3. | — |
| Watermelon | May 13 | Jun 3–Jun 10 | 76 | head-start: Even planted out Jun 3, the outdoor season is about 4 days short; choose an early variety or grow under cover. | — |
| Yellow Squash | May 13 | Jun 10–Jun 17 | 83 | fits: 55 days to maturity, 83 available after Jun 10. | Jun 24 |
| Zinnias | Apr 29 | May 27–Jun 10 | 97 | fits: 60 days to maturity, 97 available after May 27. | Jun 19 |
Month by month in Hibbing
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start the slowest-growing crops indoors: onions, leeks, and celery (10–12 weeks before last frost). |
| March | Start indoors: Chives (Mar 4), Lavender (Mar 4), Onion (Mar 4), Rosemary (Mar 4), Celery (Mar 18), Collards (Mar 18), +5 more. |
| April | Start indoors: Broccoli (Apr 1), Brussel Sprouts (Apr 1), Cabbage (Apr 1), Lettuce (Apr 1), Sage (Apr 1), Swiss Chard (Apr 1), +14 more. Direct sow from: Arugula (Apr 1), Beets (Apr 1), Dill (Apr 1), Peas (Apr 1), Radish (Apr 1), Spinach (Apr 1), +3 more. Transplant from: Broccoli (Apr 29), Brussel Sprouts (Apr 29), Cabbage (Apr 29), Collards (Apr 29), Kale (Apr 29), Lettuce (Apr 29), +2 more. Plant: Strawberry (Apr 22). |
| May | Start indoors: Cucumber (May 6), Butternut Squash (May 13), Cantaloupe (May 13), Melons (May 13), Pumpkin (May 13), Spaghetti Squash (May 13), +3 more. Direct sow from: Carrots (May 6), Potatoes (May 13), Sunflowers (May 27). Transplant from: Calendula (May 13), Swiss Chard (May 13), Bok Choy (May 20), Cauliflower (May 20), Cosmos (May 27), Lavender (May 27), +4 more. Last frost around May 27. |
| June | Direct sow from: Beans (Jun 3), Pole Beans (Jun 3). Transplant from: Celery (Jun 3), Chives (Jun 3), Corn (Jun 3), Okra (Jun 3), Oregano (Jun 3), Parsley (Jun 3), +17 more. Last sowing dates: Sunflowers (Jun 9), Brussel Sprouts (Jun 14), Pole Beans (Jun 14), Basil (Jun 19), Cosmos (Jun 19), Cucumber (Jun 19), +10 more. |
| July | Last sowing dates: Peas (Jul 5), Cabbage (Jul 14), Carrots (Jul 14), Beets (Jul 15), Dill (Jul 15), Swiss Chard (Jul 15), +8 more. |
| August | Last sowing dates: Turnip (Aug 3), Arugula (Aug 13), Spinach (Aug 13), Radish (Aug 14). |
| September | Direct sow from: Garlic (Sep 15). First frost around September 15. |
| October | Last sowing dates: Garlic (Oct 6). |
| 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 Hibbing, MN (ZIP 55746)?
The median last spring frost date for Hibbing, MN (ZIP code 55746) is around May 27. 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 May 14; one in ten it runs past June 10.
What is the first fall frost date in Hibbing, MN?
The median first fall frost date for Hibbing, MN is around September 15. 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 3 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Hibbing, MN?
The frost-free growing season in Hibbing is about 111 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 Hibbing (111 frost-free days, a short season), 30 of 56 planner crops fit outright, 15 get two plantings, 8 need an indoor start, 2 don't reliably mature, 1 crop is perennial.
What USDA hardiness zone is Hibbing, MN?
Hibbing, MN is in USDA hardiness zone 3b (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 Hibbing, MN?
Start tomatoes indoors Apr 22 and plant out Jun 10 in Hibbing. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Hibbing?
Two: plant Apr 29 and again by Jul 25; both mature before Sep 22.
When do I plant garlic in Hibbing?
Sep 15 to Oct 6; it overwinters and is ready the following summer.
Can I grow Celery in Hibbing?
Yes, with help. Even planted out Jun 3, the outdoor season is about 9 days short; choose an early variety or grow under cover.
Which nearby ZIP has a longer season?
Grand Rapids (ZIP 55744) has 122 frost-free days, 11 more than Hibbing (ZIP 55746). See Grand Rapids ZIP 55744 frost dates
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