Frost dates for 97366South Beach, OR
The average last spring frost in South Beach is March 21 and the average first fall frost is November 27, giving a typical growing season of about 252 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 21
- Average first fall frost
- Nov 27
- Growing season
- 252 days
Safer after Apr 12 (1-in-10 risk)
Possible by Nov 1 (1-in-10 risk)
First frost typically in 26 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Mar 30 · Apr 20 · May 5 | Oct 11 · Nov 1 · Nov 26 | 195 days | 100% |
| Frost / freeze (32°F) | Feb 11 · Mar 21 · Apr 12 | Nov 1 · Nov 27 · Dec 28 | 252 days | 100% |
| Hard freeze (28°F) | Dec 12 · Feb 6 · Mar 11 | Nov 15 · Dec 22 · Feb 18 | 325 days | 84% |
Planting calendar for South Beach
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Feb 18 – Apr 26 |
| Tomatoes | Transplant outdoors | Apr 6 – Aug 7 |
| Peppers | Start seeds indoors | Feb 18 – Mar 21 |
| Peppers | Transplant outdoors | Apr 20 – May 21 |
| Eggplant | Start seeds indoors | Mar 7 – Apr 5 |
| Eggplant | Transplant outdoors | Apr 20 – May 21 |
| Cucumbers | Sow outdoors | Apr 20 – Aug 17 |
| Summer squash | Sow outdoors | Apr 6 – May 21 |
| Winter squash & pumpkins | Sow outdoors | Apr 20 – May 21 |
| Snap beans | Sow outdoors | Apr 6 – Sep 9 |
| Sweet corn | Sow outdoors | Apr 6 – Aug 7 |
| Watermelon & cantaloupe | Sow outdoors | Apr 20 – May 21 |
| Okra | Sow outdoors | Apr 13 – May 6 |
| Peas | Sow outdoors (spring) | Feb 18 – Apr 5 |
| Potatoes | Plant outdoors (spring) | Feb 18 – Apr 20 |
| Onions | Start seeds indoors (spring) | Jan 7 – Feb 3 |
| Onions | Transplant outdoors (spring) | Mar 7 – Apr 5 |
| Broccoli | Start seeds indoors (spring) | Jan 31 – Mar 6 |
| Broccoli | Transplant outdoors (spring) | Mar 7 – Apr 5 |
| Broccoli | Start seeds indoors (fall) | Jul 28 – Aug 7 |
| Broccoli | Transplant outdoors (fall) | Aug 27 – Sep 7 |
| Cabbage | Start seeds indoors (spring) | Jan 21 – Feb 18 |
| Cabbage | Transplant outdoors (spring) | Feb 18 – Mar 21 |
| Cabbage | Start seeds indoors (fall) | Jul 18 – Aug 17 |
| Cabbage | Transplant outdoors (fall) | Aug 17 – Sep 17 |
| Leaf lettuce | Sow outdoors (spring) | Feb 18 – May 6 |
| Leaf lettuce | Sow outdoors (fall) | Aug 17 – Oct 3 |
| Spinach | Sow outdoors (spring) | Feb 11 – Mar 27 |
| Spinach | Sow outdoors (fall) | Sep 3 – Oct 8 |
| Radishes | Sow outdoors (spring) | Feb 18 – Apr 10 |
| Radishes | Sow outdoors (fall) | Aug 17 – Oct 18 |
| Kale | Sow outdoors (spring) | Mar 7 – Mar 27 |
| Kale | Sow outdoors (fall) | Aug 10 – Sep 17 |
| Carrots | Sow outdoors (spring) | Mar 21 – May 6 |
| Carrots | Sow outdoors (fall) | Jul 18 – Sep 2 |
| Garlic | Plant outdoors (fall) | Nov 17 – Dec 18 |
Where these dates come from
ZIP code 97366 is matched to the NOAA station Newport, OR, 8 km away, at 122 ft elevation (30 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Newport, OR (used) | 122 ft | Mar 21 | Nov 27 |
| Newport 1 Se, OR | 8 ft | Feb 19 | Dec 16 |
| Newport 3N, OR | 220 ft | Mar 12 | Dec 10 |
| Yachats, OR | 50 ft | Feb 19 | Dec 11 |
Frost dates near South Beach
- Newport, OR 97365 · last Mar 21, first Nov 27
- Toledo, OR 97391 · last Mar 21, first Nov 27
- Seal Rock, OR 97376 · last May 15, first Oct 8
- Waldport, OR 97394 · last Feb 19, first Dec 11
- Otter Rock, OR 97369 · last Mar 12, first Dec 10
- Siletz, OR 97380 · last Mar 21, first Nov 27
- Tidewater, OR 97390 · last Feb 19, first Dec 11
- Eddyville, OR 97343 · last May 15, first Oct 8
Frequently asked questions
- When is the last frost in South Beach, OR?
- For ZIP code 97366, the average last spring frost (32°F) is March 21, based on NOAA 1991-2020 climate normals for the Newport, OR weather station. There is a 1-in-10 chance of a frost after April 12.
- When is the first frost in South Beach, OR?
- The average first fall frost (32°F) is November 27. There is a 1-in-10 chance of frost by November 1, so tender plants are at risk from that point on.
- How long is the growing season in 97366?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 252 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.