Frost dates for 97498Yachats, OR
The average last spring frost in Yachats is February 19 and the average first fall frost is December 11, giving a typical growing season of about 303 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 19
- Average first fall frost
- Dec 11
- Growing season
- 303 days
Safer after Mar 23 (1-in-10 risk)
Possible by Nov 12 (1-in-10 risk)
First frost typically in 40 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 7 · Apr 4 · Apr 27 | Oct 25 · Nov 18 · Dec 13 | 226 days | 100% |
| Frost / freeze (32°F) | Dec 18 · Feb 19 · Mar 23 | Nov 12 · Dec 11 · Feb 13 | 303 days | 92% |
| Hard freeze (28°F) | Dec 7 · Jan 9 · Feb 24 | Dec 1 · Dec 24 · Feb 19 | 365 days | 42% |
Planting calendar for Yachats
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 | Jan 19 – Mar 27 |
| Tomatoes | Transplant outdoors | Mar 7 – Aug 21 |
| Peppers | Start seeds indoors | Jan 19 – Feb 19 |
| Peppers | Transplant outdoors | Mar 21 – Apr 21 |
| Eggplant | Start seeds indoors | Feb 5 – Mar 6 |
| Eggplant | Transplant outdoors | Mar 21 – Apr 21 |
| Cucumbers | Sow outdoors | Mar 21 – Aug 31 |
| Summer squash | Sow outdoors | Mar 7 – Apr 21 |
| Winter squash & pumpkins | Sow outdoors | Mar 21 – Apr 21 |
| Snap beans | Sow outdoors | Mar 7 – Sep 23 |
| Sweet corn | Sow outdoors | Mar 7 – Aug 21 |
| Watermelon & cantaloupe | Sow outdoors | Mar 21 – Apr 21 |
| Okra | Sow outdoors | Mar 14 – Apr 6 |
| Peas | Sow outdoors (spring) | Jan 19 – Mar 6 |
| Potatoes | Plant outdoors (spring) | Jan 19 – Mar 21 |
| Onions | Start seeds indoors (spring) | Dec 8 – Jan 4 |
| Onions | Transplant outdoors (spring) | Feb 5 – Mar 6 |
| Broccoli | Start seeds indoors (spring) | Jan 1 – Feb 4 |
| Broccoli | Transplant outdoors (spring) | Feb 5 – Mar 6 |
| Broccoli | Start seeds indoors (fall) | Aug 11 – Aug 21 |
| Broccoli | Transplant outdoors (fall) | Sep 10 – Sep 21 |
| Cabbage | Start seeds indoors (spring) | Dec 22 – Jan 19 |
| Cabbage | Transplant outdoors (spring) | Jan 19 – Feb 19 |
| Cabbage | Start seeds indoors (fall) | Aug 1 – Aug 31 |
| Cabbage | Transplant outdoors (fall) | Aug 31 – Oct 1 |
| Leaf lettuce | Sow outdoors (spring) | Jan 19 – Apr 6 |
| Leaf lettuce | Sow outdoors (fall) | Aug 31 – Oct 17 |
| Spinach | Sow outdoors (spring) | Jan 12 – Feb 25 |
| Spinach | Sow outdoors (fall) | Sep 17 – Oct 22 |
| Radishes | Sow outdoors (spring) | Jan 19 – Mar 11 |
| Radishes | Sow outdoors (fall) | Aug 31 – Nov 1 |
| Kale | Sow outdoors (spring) | Feb 5 – Feb 25 |
| Kale | Sow outdoors (fall) | Aug 24 – Oct 1 |
| Carrots | Sow outdoors (spring) | Feb 19 – Apr 6 |
| Carrots | Sow outdoors (fall) | Aug 1 – Sep 16 |
| Garlic | Plant outdoors (fall) | Dec 1 – Jan 1 |
Where these dates come from
ZIP code 97498 is matched to the NOAA station Yachats, OR, 1.1 km away, at 50 ft elevation (390 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Yachats, OR (used) | 50 ft | Feb 19 | Dec 11 |
| Alsea Fh (Fall Creek), OR | 230 ft | Apr 13 | Nov 3 |
| Newport 1 Se, OR | 8 ft | Feb 19 | Dec 16 |
| Newport, OR | 122 ft | Mar 21 | Nov 27 |
Frost dates near Yachats
- Waldport, OR 97394 · last Feb 19, first Dec 11
- Tidewater, OR 97390 · last Feb 19, first Dec 11
- Seal Rock, OR 97376 · last May 15, first Oct 8
- South Beach, OR 97366 · last Mar 21, first Nov 27
- Swisshome, OR 97480 · last Apr 18, first Oct 25
- Toledo, OR 97391 · last Mar 21, first Nov 27
- Newport, OR 97365 · last Mar 21, first Nov 27
- Mapleton, OR 97453 · last Feb 15, first Dec 9
Frequently asked questions
- When is the last frost in Yachats, OR?
- For ZIP code 97498, the average last spring frost (32°F) is February 19, based on NOAA 1991-2020 climate normals for the Yachats, OR weather station. There is a 1-in-10 chance of a frost after March 23.
- When is the first frost in Yachats, OR?
- The average first fall frost (32°F) is December 11. There is a 1-in-10 chance of frost by November 12, so tender plants are at risk from that point on.
- How long is the growing season in 97498?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 303 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.