Frost Dates for The Dalles, OR 97058
Last spring frost April 14 · First fall frost October 20 · 189 frost-free days · USDA Zone 7b
ZIP 97058 has about 20,400 people.
Long season: 189 frost-free days. Spring frost risk spans March 26–May 2 (37 days). Fall frost risk spans October 3–November 6 (34 days).
Frost probability for 97058
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 2 | April 14 | March 26 |
| Fall (first frost) | October 3 | October 20 | November 6 |
Dates come from NOAA 1971–2000 freeze probabilities at DALLESPORT AP (8.6 km away); the 50% date is the median year.
Which crops fit a 189-day season in The Dalles
In The Dalles (189 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 10 | Apr 28–May 5 | 147 | fits: 80 days to maturity, 147 available after Apr 28. | Jun 20 |
| Pepper | Mar 3 | Apr 28–May 5 | 147 | fits: 75 days to maturity, 147 available after Apr 28. | Jun 25 |
| Lettuce | Feb 17 | Mar 17–Mar 24 | 224 | two-plantings: Plant Mar 17 and again by Aug 29; both mature before Oct 27. | Aug 29 |
| Carrots | — | Mar 24–Mar 31 | 231 | fits: 70 days to maturity, 231 available after Mar 24. | Aug 18 |
| Cucumber | Mar 24 | Apr 28–May 5 | 161 | two-plantings: Plant Apr 28 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Beans | — | Apr 21–May 5 | 175 | two-plantings: Plant Apr 21 and again by Jul 31; both mature before Oct 13. | Jul 31 |
| Peas | — | Feb 17–Apr 28 | 252 | fits: 65 days to maturity, 252 available after Feb 17. | Aug 9 |
| Zucchini | Mar 31 | Apr 28–May 5 | 161 | two-plantings: Plant Apr 28 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Onion | Jan 20 | Mar 17–Mar 31 | 224 | fits: 100 days to maturity, 224 available after Mar 17. | — |
| Spinach | — | Feb 17–Apr 7 | 266 | two-plantings: Plant Feb 17 and again by Sep 17; both mature before Nov 10. | Sep 17 |
| Kale | Feb 3 | Mar 17–Mar 31 | 238 | two-plantings: Plant Mar 17 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Broccoli | Feb 17 | Mar 17–Mar 31 | 224 | fits: 80 days to maturity, 224 available after Mar 17. | Jul 25 |
| Cabbage | Feb 17 | Mar 17–Mar 31 | 238 | fits: 70 days to maturity, 238 available after Mar 17. | Aug 18 |
| Radish | — | Feb 17–May 12 | 252 | two-plantings: Plant Feb 17 and again by Sep 18; both mature before Oct 27. | Sep 18 |
| Beets | — | Feb 17–May 12 | 252 | two-plantings: Plant Feb 17 and again by Aug 19; both mature before Oct 27. | Aug 19 |
| Potatoes | — | Mar 31–Apr 7 | 210 | fits: 90 days to maturity, 210 available after Mar 31. | — |
| Garlic | — | Oct 20 | 294 | overwinter: Plant Oct 20 to Nov 10; harvest the following summer. | Nov 10 |
| Strawberry | — | Mar 10–May 5 | 245 | perennial: A perennial: plant Mar 10; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 17 | Apr 21–Apr 28 | 161 | fits: 75 days to maturity, 161 available after Apr 21. | Jul 2 |
| Pumpkin | Mar 31 | Apr 28–Apr 28 | 154 | fits: 100 days to maturity, 154 available after Apr 28. | Jun 7 |
| Cauliflower | Mar 3 | Apr 7–Apr 21 | 203 | fits: 75 days to maturity, 203 available after Apr 7. | Jul 30 |
| Swiss Chard | Feb 17 | Mar 31–Mar 31 | 210 | two-plantings: Plant Mar 31 and again by Aug 19; both mature before Oct 27. | Aug 19 |
| Arugula | — | Feb 17–May 12 | 266 | two-plantings: Plant Feb 17 and again by Sep 17; both mature before Nov 10. | Sep 17 |
| Brussel Sprouts | Feb 17 | Mar 17–Mar 31 | 238 | fits: 100 days to maturity, 238 available after Mar 17. | Jul 19 |
| Butternut Squash | Mar 31 | Apr 28–May 5 | 154 | fits: 100 days to maturity, 154 available after Apr 28. | Jun 7 |
| Eggplant | Feb 24 | Apr 28–May 5 | 147 | fits: 70 days to maturity, 147 available after Apr 28. | Jun 30 |
| Okra | Mar 17 | Apr 21–Apr 28 | 168 | two-plantings: Plant Apr 21 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Basil | Mar 10 | May 5–May 5 | 154 | two-plantings: Plant May 5 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Cilantro | — | Mar 17–Apr 7 | 224 | two-plantings: Plant Mar 17 and again by Aug 24; both mature before Oct 27. | Aug 24 |
| Parsley | Feb 3 | Apr 21–Apr 28 | 189 | fits: 70 days to maturity, 189 available after Apr 21. | Aug 4 |
| Celery | Feb 3 | Apr 21–May 5 | 189 | fits: 120 days to maturity, 189 available after Apr 21. | Jun 15 |
| Scallions | Feb 3 | Mar 17–Mar 31 | 238 | two-plantings: Plant Mar 17 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Turnip | — | Mar 17–Mar 31 | 238 | two-plantings: Plant Mar 17 and again by Sep 7; both mature before Nov 10. | Sep 7 |
| Kohlrabi | — | Mar 3–Mar 17 | 252 | two-plantings: Plant Mar 3 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Bok Choy | Mar 17 | Apr 7–Apr 14 | 203 | two-plantings: Plant Apr 7 and again by Aug 29; both mature before Oct 27. | Aug 29 |
| Collards | Feb 3 | Mar 17–Mar 31 | 238 | two-plantings: Plant Mar 17 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Cantaloupe | Mar 31 | Apr 28–May 5 | 147 | fits: 85 days to maturity, 147 available after Apr 28. | Jun 15 |
| Chives | Jan 20 | Apr 21–Apr 28 | 203 | fits: 90 days to maturity, 203 available after Apr 21. | — |
| Dill | — | Feb 17–May 12 | 252 | two-plantings: Plant Feb 17 and again by Aug 19; both mature before Oct 27. | Aug 19 |
| Oregano | Feb 3 | Apr 21–Apr 28 | 203 | fits: 80 days to maturity, 203 available after Apr 21. | — |
| Rosemary | Jan 20 | Apr 21–Apr 28 | 189 | fits: 80 days to maturity, 189 available after Apr 21. | — |
| Sage | Feb 17 | Apr 21–Apr 28 | 203 | fits: 75 days to maturity, 203 available after Apr 21. | — |
| Thyme | Feb 3 | Apr 21–Apr 28 | 203 | fits: 90 days to maturity, 203 available after Apr 21. | — |
| Calendula | Mar 3 | Mar 31–Apr 14 | 210 | two-plantings: Plant Mar 31 and again by Aug 24; both mature before Oct 27. | Aug 24 |
| Cosmos | Mar 17 | Apr 14–Apr 28 | 175 | two-plantings: Plant Apr 14 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Lavender | Jan 20 | Apr 14–Apr 28 | 210 | fits: 90 days to maturity, 210 available after Apr 14. | — |
| Marigolds | Mar 3 | Apr 14–Apr 21 | 175 | two-plantings: Plant Apr 14 and again by Aug 3; both mature before Oct 6. | Aug 3 |
| Melons | Mar 31 | Apr 28–May 5 | 147 | fits: 85 days to maturity, 147 available after Apr 28. | Jun 15 |
| Mint | — | Apr 14–Apr 28 | 210 | fits: 90 days to maturity, 210 available after Apr 14. | — |
| Nasturtiums | Mar 17 | Apr 14–Apr 21 | 175 | two-plantings: Plant Apr 14 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Pole Beans | — | Apr 21–May 5 | 168 | fits: 65 days to maturity, 168 available after Apr 21. | Jul 19 |
| Spaghetti Squash | Mar 31 | Apr 28–May 5 | 154 | fits: 90 days to maturity, 154 available after Apr 28. | Jun 17 |
| Sunflowers | — | Apr 14–Apr 28 | 175 | fits: 70 days to maturity, 175 available after Apr 14. | Jul 14 |
| Tomatillos | Feb 17 | Apr 21–Apr 28 | 154 | fits: 75 days to maturity, 154 available after Apr 21. | Jun 25 |
| Watermelon | Mar 31 | Apr 21–Apr 28 | 154 | fits: 80 days to maturity, 154 available after Apr 21. | Jun 20 |
| Yellow Squash | Mar 31 | Apr 28–May 5 | 161 | two-plantings: Plant Apr 28 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Zinnias | Mar 17 | Apr 14–Apr 28 | 175 | two-plantings: Plant Apr 14 and again by Jul 24; both mature before Oct 6. | Jul 24 |
Month by month in The Dalles
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 20), Lavender (Jan 20), Onion (Jan 20), Rosemary (Jan 20). |
| February | Start indoors: Celery (Feb 3), Collards (Feb 3), Kale (Feb 3), Oregano (Feb 3), Parsley (Feb 3), Scallions (Feb 3), +9 more. Direct sow from: Arugula (Feb 17), Beets (Feb 17), Dill (Feb 17), Peas (Feb 17), Radish (Feb 17), Spinach (Feb 17). |
| March | Start indoors: Calendula (Mar 3), Cauliflower (Mar 3), Marigolds (Mar 3), Pepper (Mar 3), Basil (Mar 10), Tomato (Mar 10), +15 more. Direct sow from: Kohlrabi (Mar 3), Cilantro (Mar 17), Turnip (Mar 17), Carrots (Mar 24), Potatoes (Mar 31). Transplant from: Broccoli (Mar 17), Brussel Sprouts (Mar 17), Cabbage (Mar 17), Collards (Mar 17), Kale (Mar 17), Lettuce (Mar 17), +4 more. Plant: Strawberry (Mar 10). |
| April | Direct sow from: Sunflowers (Apr 14), Beans (Apr 21), Pole Beans (Apr 21). Transplant from: Bok Choy (Apr 7), Cauliflower (Apr 7), Cosmos (Apr 14), Lavender (Apr 14), Marigolds (Apr 14), Mint (Apr 14), +24 more. Last frost around April 14. |
| May | Transplant from: Basil (May 5). |
| June | Last sowing dates: Butternut Squash (Jun 7), Pumpkin (Jun 7), Cantaloupe (Jun 15), Celery (Jun 15), Melons (Jun 15), Spaghetti Squash (Jun 17), +5 more. |
| July | Last sowing dates: Corn (Jul 2), Sunflowers (Jul 14), Brussel Sprouts (Jul 19), Pole Beans (Jul 19), Basil (Jul 24), Cosmos (Jul 24), +9 more. |
| August | Last sowing dates: Marigolds (Aug 3), Parsley (Aug 4), Peas (Aug 9), Cabbage (Aug 18), Carrots (Aug 18), Beets (Aug 19), +8 more. |
| September | Last sowing dates: Kale (Sep 2), Kohlrabi (Sep 2), Turnip (Sep 7), Arugula (Sep 17), Spinach (Sep 17), Radish (Sep 18). |
| October | Direct sow from: Garlic (Oct 20). First frost around October 20. |
| November | Last sowing dates: Garlic (Nov 10). |
| 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 The Dalles, OR (ZIP 97058)?
The median last spring frost date for The Dalles, OR (ZIP code 97058) is around April 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 March 26; one in ten it runs past May 2.
What is the first fall frost date in The Dalles, OR?
The median first fall frost date for The Dalles, OR is around October 20. 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 3 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in The Dalles, OR?
The frost-free growing season in The Dalles is about 189 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 The Dalles (189 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 The Dalles, OR?
The Dalles, OR is in USDA hardiness zone 7b (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 The Dalles, OR?
Start tomatoes indoors Mar 10 and plant out Apr 28 in The Dalles. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in The Dalles?
Two: plant Mar 17 and again by Aug 29; both mature before Oct 27.
When do I plant garlic in The Dalles?
Oct 20 to Nov 10; it overwinters and is ready the following summer.
Can I get two tomato crops in The Dalles?
Yes: plant out Apr 28 for a summer crop, and set out a second round of transplants by Jun 20 for a fall crop.
Which nearby ZIP has a longer season?
Sandy (ZIP 97055) has 222 frost-free days, 33 more than The Dalles (ZIP 97058). See Sandy ZIP 97055 frost dates
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