Frost dates for 70529Duson, LA
The average last spring frost in Duson is February 26 and the average first fall frost is November 28, giving a typical growing season of about 279 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 26
- Average first fall frost
- Nov 28
- Growing season
- 279 days
Safer after Mar 20 (1-in-10 risk)
Possible by Nov 7 (1-in-10 risk)
First frost typically in 32 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) | Feb 17 · Mar 11 · Apr 3 | Nov 1 · Nov 13 · Dec 4 | 250 days | 100% |
| Frost / freeze (32°F) | Jan 29 · Feb 26 · Mar 20 | Nov 7 · Nov 28 · Dec 26 | 279 days | 100% |
| Hard freeze (28°F) | Jan 2 · Feb 5 · Mar 8 | Nov 18 · Dec 14 · Jan 18 | 313 days | 93% |
Planting calendar for Duson
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 26 – Apr 3 |
| Tomatoes | Transplant outdoors | Mar 14 – Aug 8 |
| Peppers | Start seeds indoors | Jan 26 – Feb 26 |
| Peppers | Transplant outdoors | Mar 28 – Apr 28 |
| Eggplant | Start seeds indoors | Feb 12 – Mar 13 |
| Eggplant | Transplant outdoors | Mar 28 – Apr 28 |
| Cucumbers | Sow outdoors | Mar 28 – Aug 18 |
| Summer squash | Sow outdoors | Mar 14 – Apr 28 |
| Winter squash & pumpkins | Sow outdoors | Mar 28 – Apr 28 |
| Snap beans | Sow outdoors | Mar 14 – Sep 10 |
| Sweet corn | Sow outdoors | Mar 14 – Aug 8 |
| Watermelon & cantaloupe | Sow outdoors | Mar 28 – Apr 28 |
| Okra | Sow outdoors | Mar 21 – Apr 13 |
| Peas | Sow outdoors (spring) | Jan 26 – Mar 13 |
| Potatoes | Plant outdoors (spring) | Jan 26 – Mar 28 |
| Onions | Start seeds indoors (spring) | Dec 15 – Jan 11 |
| Onions | Transplant outdoors (spring) | Feb 12 – Mar 13 |
| Broccoli | Start seeds indoors (spring) | Jan 8 – Feb 11 |
| Broccoli | Transplant outdoors (spring) | Feb 12 – Mar 13 |
| Broccoli | Start seeds indoors (fall) | Jul 29 – Aug 8 |
| Broccoli | Transplant outdoors (fall) | Aug 28 – Sep 8 |
| Cabbage | Start seeds indoors (spring) | Dec 29 – Jan 26 |
| Cabbage | Transplant outdoors (spring) | Jan 26 – Feb 26 |
| Cabbage | Start seeds indoors (fall) | Jul 19 – Aug 18 |
| Cabbage | Transplant outdoors (fall) | Aug 18 – Sep 18 |
| Leaf lettuce | Sow outdoors (spring) | Jan 26 – Apr 13 |
| Leaf lettuce | Sow outdoors (fall) | Aug 18 – Oct 4 |
| Spinach | Sow outdoors (spring) | Jan 19 – Mar 4 |
| Spinach | Sow outdoors (fall) | Sep 4 – Oct 9 |
| Radishes | Sow outdoors (spring) | Jan 26 – Mar 18 |
| Radishes | Sow outdoors (fall) | Aug 18 – Oct 19 |
| Kale | Sow outdoors (spring) | Feb 12 – Mar 4 |
| Kale | Sow outdoors (fall) | Aug 11 – Sep 18 |
| Carrots | Sow outdoors (spring) | Feb 26 – Apr 13 |
| Carrots | Sow outdoors (fall) | Jul 19 – Sep 3 |
| Garlic | Plant outdoors (fall) | Nov 18 – Dec 19 |
Where these dates come from
ZIP code 70529 is matched to the NOAA station Lafayette, LA, 9 km away, at 25 ft elevation (1 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Lafayette, LA (used) | 25 ft | Feb 26 | Nov 28 |
| Lafayette Rgnl Ap, LA | 38 ft | Feb 13 | Dec 4 |
| Crowley 2 Ne, LA | 25 ft | Feb 20 | Dec 4 |
| Grand Coteau, LA | 55 ft | Feb 28 | Nov 23 |
Frost dates near Duson
- Lafayette, LA 70593 · last Feb 26, first Nov 28
- Scott, LA 70583 · last Feb 26, first Nov 28
- Milton, LA 70558 · last Feb 26, first Nov 28
- Rayne, LA 70578 · last Feb 20, first Dec 4
- Maurice, LA 70555 · last Feb 26, first Nov 28
- Crowley, LA 70527 · last Feb 20, first Dec 4
- Youngsville, LA 70592 · last Feb 13, first Dec 4
- Carencro, LA 70520 · last Feb 28, first Nov 23
Frequently asked questions
- When is the last frost in Duson, LA?
- For ZIP code 70529, the average last spring frost (32°F) is February 26, based on NOAA 1991-2020 climate normals for the Lafayette, LA weather station. There is a 1-in-10 chance of a frost after March 20.
- When is the first frost in Duson, LA?
- The average first fall frost (32°F) is November 28. There is a 1-in-10 chance of frost by November 7, so tender plants are at risk from that point on.
- How long is the growing season in 70529?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 279 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.