Newport, OR planting zone & frost dates
Newport is in USDA hardiness zone 9b. The last spring frost usually comes around March 21 and the first fall frost around November 27, for a growing season of about 252 days.
Planting calendar for Newport
Dates are counted from the average last spring frost (March 21) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Jan 24 – Feb 7 Transplant outdoors: Mar 28 – Apr 4 |
| Peppers | Start seeds indoors: Jan 10 – Jan 24 Transplant outdoors: Apr 4 – Apr 11 |
| Eggplant | Start seeds indoors: Jan 10 – Jan 24 Transplant outdoors: Apr 4 – Apr 11 |
| Broccoli | Start seeds indoors: Jan 10 – Jan 24 Transplant outdoors: Feb 21 – Mar 7 |
| Cabbage | Start seeds indoors: Jan 10 – Jan 24 Transplant outdoors: Feb 21 – Mar 7 |
| Onions (sets) | Plant outdoors: Feb 21 – Mar 7 |
| Peas | Sow outdoors: Feb 7 – Feb 21 |
| Spinach | Sow outdoors: Feb 7 – Feb 21 |
| Lettuce | Sow outdoors: Feb 21 – Mar 7 |
| Carrots | Sow outdoors: Feb 21 – Mar 7 |
| Potatoes | Plant outdoors: Feb 21 – Mar 7 |
| Beans | Sow outdoors: Mar 28 – Apr 4 |
| Sweet corn | Sow outdoors: Mar 28 – Apr 4 |
| Cucumbers | Sow outdoors: Mar 28 – Apr 4 |
| Squash & zucchini | Sow outdoors: Mar 28 – Apr 4 |
| Basil | Start seeds indoors: Feb 7 – Feb 21 Transplant outdoors: Mar 28 – Apr 4 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 2 (8 weeks before the average first fall frost on Nov 27).
Useful for zone 9b gardens
- Seed starting kit with dome — to start seeds indoors before the last frost
- LED grow light for seedlings — stops leggy seedlings
- Frost cloth / plant covers — for late spring and early fall frosts
- Soil thermometer — warm-season crops need soil above 60°F
- Shade cloth — for hot summers
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Feb 11 | Mar 21 | Apr 12 |
| First 32°F frost in fall is before | Dec 28 | Nov 27 | Nov 1 |
How to read it: in spring there is a 10% chance of a frost after April 12, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 1. A hard freeze (28°F) usually ends around February 6.
Hardiness zone by ZIP code in Newport
- 97365 zone 9b
Nearby cities
- Agate Beach zone 9b, last frost Mar 12
- Dallas zone 8b, last frost Apr 16
- Corvallis zone 8b, last frost Apr 17
- Monmouth zone 8b, last frost Apr 16
- Albany zone 8b, last frost Apr 17
- McMinnville zone 8b, last frost Apr 5
- Salem zone 8b, last frost Apr 3
- Keizer zone 8b, last frost Apr 3
Questions
What growing zone is Newport, OR?
Newport is in USDA Plant Hardiness Zone 9b (average extreme winter low 25°F to 30°F), according to the USDA 2023 map.
When is the last frost in Newport?
The average last spring frost (32°F) in Newport is March 21. There is still a 10% chance of frost until April 12.
When can I plant tomatoes in Newport?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 28 – Apr 4. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Newport, OR (USW00024285), 0.7 km (0.4 mi) from the city center, elevation 37 m, based on 12 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.