Frost dates for 97459North Bend, OR
The average last spring frost in North Bend is February 21 and the average first fall frost is December 9, giving a typical growing season of about 294 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 21
- Average first fall frost
- Dec 9
- Growing season
- 294 days
Safer after Mar 25 (1-in-10 risk)
Possible by Nov 12 (1-in-10 risk)
First frost typically in 38 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 1 · Apr 2 · May 1 | Oct 24 · Nov 15 · Dec 11 | 224 days | 100% |
| Frost / freeze (32°F) | Dec 31 · Feb 21 · Mar 25 | Nov 12 · Dec 9 · Jan 28 | 294 days | 95% |
| Hard freeze (28°F) | Dec 3 · Jan 4 · Feb 22 | Nov 25 · Dec 22 · Feb 15 | 365 days | 44% |
Planting calendar for North Bend
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 21 – Mar 29 |
| Tomatoes | Transplant outdoors | Mar 9 – Aug 19 |
| Peppers | Start seeds indoors | Jan 21 – Feb 21 |
| Peppers | Transplant outdoors | Mar 23 – Apr 23 |
| Eggplant | Start seeds indoors | Feb 7 – Mar 8 |
| Eggplant | Transplant outdoors | Mar 23 – Apr 23 |
| Cucumbers | Sow outdoors | Mar 23 – Aug 29 |
| Summer squash | Sow outdoors | Mar 9 – Apr 23 |
| Winter squash & pumpkins | Sow outdoors | Mar 23 – Apr 23 |
| Snap beans | Sow outdoors | Mar 9 – Sep 21 |
| Sweet corn | Sow outdoors | Mar 9 – Aug 19 |
| Watermelon & cantaloupe | Sow outdoors | Mar 23 – Apr 23 |
| Okra | Sow outdoors | Mar 16 – Apr 8 |
| Peas | Sow outdoors (spring) | Jan 21 – Mar 8 |
| Potatoes | Plant outdoors (spring) | Jan 21 – Mar 23 |
| Onions | Start seeds indoors (spring) | Dec 10 – Jan 6 |
| Onions | Transplant outdoors (spring) | Feb 7 – Mar 8 |
| Broccoli | Start seeds indoors (spring) | Jan 3 – Feb 6 |
| Broccoli | Transplant outdoors (spring) | Feb 7 – Mar 8 |
| Broccoli | Start seeds indoors (fall) | Aug 9 – Aug 19 |
| Broccoli | Transplant outdoors (fall) | Sep 8 – Sep 19 |
| Cabbage | Start seeds indoors (spring) | Dec 24 – Jan 21 |
| Cabbage | Transplant outdoors (spring) | Jan 21 – Feb 21 |
| Cabbage | Start seeds indoors (fall) | Jul 30 – Aug 29 |
| Cabbage | Transplant outdoors (fall) | Aug 29 – Sep 29 |
| Leaf lettuce | Sow outdoors (spring) | Jan 21 – Apr 8 |
| Leaf lettuce | Sow outdoors (fall) | Aug 29 – Oct 15 |
| Spinach | Sow outdoors (spring) | Jan 14 – Feb 27 |
| Spinach | Sow outdoors (fall) | Sep 15 – Oct 20 |
| Radishes | Sow outdoors (spring) | Jan 21 – Mar 13 |
| Radishes | Sow outdoors (fall) | Aug 29 – Oct 30 |
| Kale | Sow outdoors (spring) | Feb 7 – Feb 27 |
| Kale | Sow outdoors (fall) | Aug 22 – Sep 29 |
| Carrots | Sow outdoors (spring) | Feb 21 – Apr 8 |
| Carrots | Sow outdoors (fall) | Jul 30 – Sep 14 |
| Garlic | Plant outdoors (fall) | Nov 29 – Dec 30 |
Where these dates come from
ZIP code 97459 is matched to the NOAA station North Bend Rgnl Ap, OR, 3.3 km away, at 17 ft elevation (6 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| North Bend Rgnl Ap, OR (used) | 17 ft | Feb 21 | Dec 9 |
| Coos Bay 8 Sw, OR | 12 ft | Apr 15 | Oct 31 |
| Coquille City, OR | 23 ft | Mar 28 | Nov 6 |
| Winchester Bay Coast Grd, OR | 8 ft | Mar 25 | Nov 24 |
Frost dates near North Bend
- Allegany, OR 97407 · last Feb 21, first Dec 9
- Lakeside, OR 97449 · last Mar 25, first Nov 24
- Coos Bay, OR 97420 · last Mar 28, first Nov 6
- Coquille, OR 97423 · last Mar 28, first Nov 6
- Reedsport, OR 97467 · last Mar 25, first Nov 24
- Gardiner, OR 97441 · last Mar 25, first Nov 24
- Bandon, OR 97411 · last Mar 9, first Nov 27
- Myrtle Point, OR 97458 · last Mar 21, first Nov 14
Frequently asked questions
- When is the last frost in North Bend, OR?
- For ZIP code 97459, the average last spring frost (32°F) is February 21, based on NOAA 1991-2020 climate normals for the North Bend Rgnl Ap, OR weather station. There is a 1-in-10 chance of a frost after March 25.
- When is the first frost in North Bend, OR?
- The average first fall frost (32°F) is December 9. 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 97459?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 294 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.