Frost Dates for Gresham, OR 97080
Last spring frost April 3 · First fall frost November 11 · 222 frost-free days · USDA Zone 8b
ZIP 97080 has about 48,400 people, the largest of 2 ZIP codes in Gresham.
Long season: 222 frost-free days. Spring frost risk spans March 6–May 2 (57 days). Fall frost risk spans October 11–December 6 (56 days).
Frost probability for 97080
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 2 | April 3 | March 6 |
| Fall (first frost) | October 11 | November 11 | December 6 |
Dates come from NOAA 1971–2000 freeze probabilities at ESTACADA 2 SE (23.9 km away); the 50% date is the median year.
Frost dates by ZIP code in Gresham, OR
| ZIP | Last spring frost (50%) | First fall frost (50%) | Zone |
|---|---|---|---|
| 97080 | April 3 | November 11 | 8b |
| 97030 | March 23 | November 15 | 9a |
Which crops fit a 222-day season in Gresham
In Gresham (222 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 | Feb 27 | Apr 17–Apr 24 | 180 | fits: 80 days to maturity, 180 available after Apr 17. | Jul 12 |
| Pepper | Feb 20 | Apr 17–Apr 24 | 180 | fits: 75 days to maturity, 180 available after Apr 17. | Jul 17 |
| Lettuce | Feb 6 | Mar 6–Mar 13 | 257 | two-plantings: Plant Mar 6 and again by Sep 20; both mature before Nov 18. | Sep 20 |
| Carrots | — | Mar 13–Mar 20 | 264 | fits: 70 days to maturity, 264 available after Mar 13. | Sep 9 |
| Cucumber | Mar 13 | Apr 17–Apr 24 | 194 | two-plantings: Plant Apr 17 and again by Aug 15; both mature before Oct 28. | Aug 15 |
| Beans | — | Apr 10–Apr 24 | 208 | two-plantings: Plant Apr 10 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Peas | — | Feb 6–Apr 17 | 285 | fits: 65 days to maturity, 285 available after Feb 6. | Aug 31 |
| Zucchini | Mar 20 | Apr 17–Apr 24 | 194 | two-plantings: Plant Apr 17 and again by Aug 20; both mature before Oct 28. | Aug 20 |
| Onion | Jan 9 | Mar 6–Mar 20 | 257 | fits: 100 days to maturity, 257 available after Mar 6. | — |
| Spinach | — | Feb 6–Mar 27 | 299 | two-plantings: Plant Feb 6 and again by Oct 9; both mature before Dec 2. | Oct 9 |
| Kale | Jan 23 | Mar 6–Mar 20 | 271 | two-plantings: Plant Mar 6 and again by Sep 24; both mature before Dec 2. | Sep 24 |
| Broccoli | Feb 6 | Mar 6–Mar 20 | 257 | fits: 80 days to maturity, 257 available after Mar 6. | Aug 16 |
| Cabbage | Feb 6 | Mar 6–Mar 20 | 271 | fits: 70 days to maturity, 271 available after Mar 6. | Sep 9 |
| Radish | — | Feb 6–May 1 | 285 | two-plantings: Plant Feb 6 and again by Oct 10; both mature before Nov 18. | Oct 10 |
| Beets | — | Feb 6–May 1 | 285 | two-plantings: Plant Feb 6 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Potatoes | — | Mar 20–Mar 27 | 243 | fits: 90 days to maturity, 243 available after Mar 20. | — |
| Garlic | — | Nov 11 | 327 | overwinter: Plant Nov 11 to Dec 2; harvest the following summer. | Dec 2 |
| Strawberry | — | Feb 27–Apr 24 | 278 | perennial: A perennial: plant Feb 27; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 6 | Apr 10–Apr 17 | 194 | fits: 75 days to maturity, 194 available after Apr 10. | Jul 24 |
| Pumpkin | Mar 20 | Apr 17–Apr 17 | 187 | fits: 100 days to maturity, 187 available after Apr 17. | Jun 29 |
| Cauliflower | Feb 20 | Mar 27–Apr 10 | 236 | fits: 75 days to maturity, 236 available after Mar 27. | Aug 21 |
| Swiss Chard | Feb 6 | Mar 20–Mar 20 | 243 | two-plantings: Plant Mar 20 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Arugula | — | Feb 6–May 1 | 299 | two-plantings: Plant Feb 6 and again by Oct 9; both mature before Dec 2. | Oct 9 |
| Brussel Sprouts | Feb 6 | Mar 6–Mar 20 | 271 | fits: 100 days to maturity, 271 available after Mar 6. | Aug 10 |
| Butternut Squash | Mar 20 | Apr 17–Apr 24 | 187 | fits: 100 days to maturity, 187 available after Apr 17. | Jun 29 |
| Eggplant | Feb 13 | Apr 17–Apr 24 | 180 | fits: 70 days to maturity, 180 available after Apr 17. | Jul 22 |
| Okra | Mar 6 | Apr 10–Apr 17 | 201 | two-plantings: Plant Apr 10 and again by Aug 20; both mature before Oct 28. | Aug 20 |
| Basil | Feb 27 | Apr 24–Apr 24 | 187 | two-plantings: Plant Apr 24 and again by Aug 15; both mature before Oct 28. | Aug 15 |
| Cilantro | — | Mar 6–Mar 27 | 257 | two-plantings: Plant Mar 6 and again by Sep 15; both mature before Nov 18. | Sep 15 |
| Parsley | Jan 23 | Apr 10–Apr 17 | 222 | fits: 70 days to maturity, 222 available after Apr 10. | Aug 26 |
| Celery | Jan 23 | Apr 10–Apr 24 | 222 | fits: 120 days to maturity, 222 available after Apr 10. | Jul 7 |
| Scallions | Jan 23 | Mar 6–Mar 20 | 271 | two-plantings: Plant Mar 6 and again by Sep 19; both mature before Dec 2. | Sep 19 |
| Turnip | — | Mar 6–Mar 20 | 271 | two-plantings: Plant Mar 6 and again by Sep 29; both mature before Dec 2. | Sep 29 |
| Kohlrabi | — | Feb 20–Mar 6 | 285 | two-plantings: Plant Feb 20 and again by Sep 24; both mature before Dec 2. | Sep 24 |
| Bok Choy | Mar 6 | Mar 27–Apr 3 | 236 | two-plantings: Plant Mar 27 and again by Sep 20; both mature before Nov 18. | Sep 20 |
| Collards | Jan 23 | Mar 6–Mar 20 | 271 | two-plantings: Plant Mar 6 and again by Sep 19; both mature before Dec 2. | Sep 19 |
| Cantaloupe | Mar 20 | Apr 17–Apr 24 | 180 | fits: 85 days to maturity, 180 available after Apr 17. | Jul 7 |
| Chives | Jan 9 | Apr 10–Apr 17 | 236 | fits: 90 days to maturity, 236 available after Apr 10. | — |
| Dill | — | Feb 6–May 1 | 285 | two-plantings: Plant Feb 6 and again by Sep 10; both mature before Nov 18. | Sep 10 |
| Oregano | Jan 23 | Apr 10–Apr 17 | 236 | fits: 80 days to maturity, 236 available after Apr 10. | — |
| Rosemary | Jan 9 | Apr 10–Apr 17 | 222 | fits: 80 days to maturity, 222 available after Apr 10. | — |
| Sage | Feb 6 | Apr 10–Apr 17 | 236 | fits: 75 days to maturity, 236 available after Apr 10. | — |
| Thyme | Jan 23 | Apr 10–Apr 17 | 236 | fits: 90 days to maturity, 236 available after Apr 10. | — |
| Calendula | Feb 20 | Mar 20–Apr 3 | 243 | two-plantings: Plant Mar 20 and again by Sep 15; both mature before Nov 18. | Sep 15 |
| Cosmos | Mar 6 | Apr 3–Apr 17 | 208 | two-plantings: Plant Apr 3 and again by Aug 15; both mature before Oct 28. | Aug 15 |
| Lavender | Jan 9 | Apr 3–Apr 17 | 243 | fits: 90 days to maturity, 243 available after Apr 3. | — |
| Marigolds | Feb 20 | Apr 3–Apr 10 | 208 | two-plantings: Plant Apr 3 and again by Aug 25; both mature before Oct 28. | Aug 25 |
| Melons | Mar 20 | Apr 17–Apr 24 | 180 | fits: 85 days to maturity, 180 available after Apr 17. | Jul 7 |
| Mint | — | Apr 3–Apr 17 | 243 | fits: 90 days to maturity, 243 available after Apr 3. | — |
| Nasturtiums | Mar 6 | Apr 3–Apr 10 | 208 | two-plantings: Plant Apr 3 and again by Aug 20; both mature before Oct 28. | Aug 20 |
| Pole Beans | — | Apr 10–Apr 24 | 201 | fits: 65 days to maturity, 201 available after Apr 10. | Aug 10 |
| Spaghetti Squash | Mar 20 | Apr 17–Apr 24 | 187 | fits: 90 days to maturity, 187 available after Apr 17. | Jul 9 |
| Sunflowers | — | Apr 3–Apr 17 | 208 | fits: 70 days to maturity, 208 available after Apr 3. | Aug 5 |
| Tomatillos | Feb 6 | Apr 10–Apr 17 | 187 | fits: 75 days to maturity, 187 available after Apr 10. | Jul 17 |
| Watermelon | Mar 20 | Apr 10–Apr 17 | 187 | fits: 80 days to maturity, 187 available after Apr 10. | Jul 12 |
| Yellow Squash | Mar 20 | Apr 17–Apr 24 | 194 | two-plantings: Plant Apr 17 and again by Aug 20; both mature before Oct 28. | Aug 20 |
| Zinnias | Mar 6 | Apr 3–Apr 17 | 208 | two-plantings: Plant Apr 3 and again by Aug 15; both mature before Oct 28. | Aug 15 |
Month by month in Gresham
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 9), Lavender (Jan 9), Onion (Jan 9), Rosemary (Jan 9), Celery (Jan 23), Collards (Jan 23), +5 more. |
| February | Start indoors: Broccoli (Feb 6), Brussel Sprouts (Feb 6), Cabbage (Feb 6), Lettuce (Feb 6), Sage (Feb 6), Swiss Chard (Feb 6), +8 more. Direct sow from: Arugula (Feb 6), Beets (Feb 6), Dill (Feb 6), Peas (Feb 6), Radish (Feb 6), Spinach (Feb 6), +1 more. Plant: Strawberry (Feb 27). |
| March | Start indoors: Bok Choy (Mar 6), Corn (Mar 6), Cosmos (Mar 6), Nasturtiums (Mar 6), Okra (Mar 6), Zinnias (Mar 6), +9 more. Direct sow from: Cilantro (Mar 6), Turnip (Mar 6), Carrots (Mar 13), Potatoes (Mar 20). Transplant from: Broccoli (Mar 6), Brussel Sprouts (Mar 6), Cabbage (Mar 6), Collards (Mar 6), Kale (Mar 6), Lettuce (Mar 6), +6 more. |
| April | Direct sow from: Sunflowers (Apr 3), Beans (Apr 10), Pole Beans (Apr 10). Transplant from: Cosmos (Apr 3), Lavender (Apr 3), Marigolds (Apr 3), Mint (Apr 3), Nasturtiums (Apr 3), Zinnias (Apr 3), +23 more. Last frost around April 3. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 29), Pumpkin (Jun 29). |
| July | Last sowing dates: Cantaloupe (Jul 7), Celery (Jul 7), Melons (Jul 7), Spaghetti Squash (Jul 9), Tomato (Jul 12), Watermelon (Jul 12), +4 more. |
| August | Last sowing dates: Sunflowers (Aug 5), Brussel Sprouts (Aug 10), Pole Beans (Aug 10), Basil (Aug 15), Cosmos (Aug 15), Cucumber (Aug 15), +11 more. |
| September | Last sowing dates: Cabbage (Sep 9), Carrots (Sep 9), Beets (Sep 10), Dill (Sep 10), Swiss Chard (Sep 10), Calendula (Sep 15), +8 more. |
| October | Last sowing dates: Arugula (Oct 9), Spinach (Oct 9), Radish (Oct 10). |
| November | Direct sow from: Garlic (Nov 11). First frost around November 11. |
| December | Last sowing dates: Garlic (Dec 2). |
Frequently Asked Questions
What is the last frost date for Gresham, OR (ZIP 97080)?
The median last spring frost date for Gresham, OR (ZIP code 97080) is around April 3. 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 March 6; one in ten it runs past May 2.
What is the first fall frost date in Gresham, OR?
The median first fall frost date for Gresham, OR is around November 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 October 11 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Gresham, OR?
The frost-free growing season in Gresham is about 222 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 Gresham (222 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 Gresham, OR?
Gresham, OR is in USDA hardiness zone 8b (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 Gresham, OR?
Start tomatoes indoors Feb 27 and plant out Apr 17 in Gresham. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Gresham?
Two: plant Mar 6 and again by Sep 20; both mature before Nov 18.
When do I plant garlic in Gresham?
Nov 11 to Dec 2; it overwinters and is ready the following summer.
Can I get two tomato crops in Gresham?
Yes: plant out Apr 17 for a summer crop, and set out a second round of transplants by Jul 12 for a fall crop.
Which nearby ZIP has a longer season?
Damascus (ZIP 97089) has 231 frost-free days, 9 more than Gresham (ZIP 97080). See Damascus ZIP 97089 frost dates
Nearby and related
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