Frost dates for 97411Bandon, OR
The average last spring frost in Bandon is March 9 and the average first fall frost is November 27, giving a typical growing season of about 260 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 9
- Average first fall frost
- Nov 27
- Growing season
- 260 days
Safer after Apr 7 (1-in-10 risk)
Possible by Nov 1 (1-in-10 risk)
First frost typically in 25 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 28 · Apr 18 · May 9 | Oct 7 · Nov 1 · Nov 27 | 198 days | 100% |
| Frost / freeze (32°F) | Jan 31 · Mar 9 · Apr 7 | Nov 1 · Nov 27 · Jan 8 | 260 days | 100% |
| Hard freeze (28°F) | Dec 6 · Jan 29 · Mar 1 | Nov 17 · Dec 19 · Feb 16 | 338 days | 74% |
Planting calendar for Bandon
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 6 – Apr 14 |
| Tomatoes | Transplant outdoors | Mar 25 – Aug 7 |
| Peppers | Start seeds indoors | Feb 6 – Mar 9 |
| Peppers | Transplant outdoors | Apr 8 – May 9 |
| Eggplant | Start seeds indoors | Feb 23 – Mar 24 |
| Eggplant | Transplant outdoors | Apr 8 – May 9 |
| Cucumbers | Sow outdoors | Apr 8 – Aug 17 |
| Summer squash | Sow outdoors | Mar 25 – May 9 |
| Winter squash & pumpkins | Sow outdoors | Apr 8 – May 9 |
| Snap beans | Sow outdoors | Mar 25 – Sep 9 |
| Sweet corn | Sow outdoors | Mar 25 – Aug 7 |
| Watermelon & cantaloupe | Sow outdoors | Apr 8 – May 9 |
| Okra | Sow outdoors | Apr 1 – Apr 24 |
| Peas | Sow outdoors (spring) | Feb 6 – Mar 24 |
| Potatoes | Plant outdoors (spring) | Feb 6 – Apr 8 |
| Onions | Start seeds indoors (spring) | Dec 26 – Jan 22 |
| Onions | Transplant outdoors (spring) | Feb 23 – Mar 24 |
| Broccoli | Start seeds indoors (spring) | Jan 19 – Feb 22 |
| Broccoli | Transplant outdoors (spring) | Feb 23 – Mar 24 |
| Broccoli | Start seeds indoors (fall) | Jul 28 – Aug 7 |
| Broccoli | Transplant outdoors (fall) | Aug 27 – Sep 7 |
| Cabbage | Start seeds indoors (spring) | Jan 9 – Feb 6 |
| Cabbage | Transplant outdoors (spring) | Feb 6 – Mar 9 |
| Cabbage | Start seeds indoors (fall) | Jul 18 – Aug 17 |
| Cabbage | Transplant outdoors (fall) | Aug 17 – Sep 17 |
| Leaf lettuce | Sow outdoors (spring) | Feb 6 – Apr 24 |
| Leaf lettuce | Sow outdoors (fall) | Aug 17 – Oct 3 |
| Spinach | Sow outdoors (spring) | Jan 30 – Mar 15 |
| Spinach | Sow outdoors (fall) | Sep 3 – Oct 8 |
| Radishes | Sow outdoors (spring) | Feb 6 – Mar 29 |
| Radishes | Sow outdoors (fall) | Aug 17 – Oct 18 |
| Kale | Sow outdoors (spring) | Feb 23 – Mar 15 |
| Kale | Sow outdoors (fall) | Aug 10 – Sep 17 |
| Carrots | Sow outdoors (spring) | Mar 9 – Apr 24 |
| Carrots | Sow outdoors (fall) | Jul 18 – Sep 2 |
| Garlic | Plant outdoors (fall) | Nov 17 – Dec 18 |
Where these dates come from
ZIP code 97411 is matched to the NOAA station Bandon 2 Nne, OR, 5.9 km away, at 23 ft elevation (85 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Bandon 2 Nne, OR (used) | 23 ft | Mar 9 | Nov 27 |
| Coquille City, OR | 23 ft | Mar 28 | Nov 6 |
| Langlois #2, OR | 90 ft | Mar 16 | Nov 29 |
| Coos Bay 8 Sw, OR | 12 ft | Apr 15 | Oct 31 |
Frost dates near Bandon
- Coquille, OR 97423 · last Mar 28, first Nov 6
- Langlois, OR 97450 · last Mar 16, first Nov 29
- Coos Bay, OR 97420 · last Mar 28, first Nov 6
- Myrtle Point, OR 97458 · last Mar 21, first Nov 14
- Broadbent, OR 97414 · last Mar 21, first Nov 14
- Sixes, OR 97476 · last Mar 16, first Nov 29
- Powers, OR 97466 · last Mar 21, first Nov 14
- Port Orford, OR 97465 · last Feb 17, first Dec 3
Frequently asked questions
- When is the last frost in Bandon, OR?
- For ZIP code 97411, the average last spring frost (32°F) is March 9, based on NOAA 1991-2020 climate normals for the Bandon 2 Nne, OR weather station. There is a 1-in-10 chance of a frost after April 7.
- When is the first frost in Bandon, 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 97411?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 260 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.