Frost dates for 71475Slagle, LA
The average last spring frost in Slagle is March 20 and the average first fall frost is November 9, giving a typical growing season of about 234 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 20
- Average first fall frost
- Nov 9
- Growing season
- 234 days
Safer after Apr 12 (1-in-10 risk)
Possible by Oct 26 (1-in-10 risk)
First frost typically in 12 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 13 · Apr 5 · Apr 25 | Oct 17 · Oct 31 · Nov 16 | 208 days | 100% |
| Frost / freeze (32°F) | Feb 24 · Mar 20 · Apr 12 | Oct 26 · Nov 9 · Dec 1 | 234 days | 100% |
| Hard freeze (28°F) | Jan 31 · Feb 28 · Mar 27 | Nov 3 · Nov 23 · Dec 16 | 264 days | 100% |
Planting calendar for Slagle
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 17 – Apr 25 |
| Tomatoes | Transplant outdoors | Apr 5 – Jul 20 |
| Peppers | Start seeds indoors | Feb 17 – Mar 20 |
| Peppers | Transplant outdoors | Apr 19 – May 20 |
| Eggplant | Start seeds indoors | Mar 6 – Apr 4 |
| Eggplant | Transplant outdoors | Apr 19 – May 20 |
| Cucumbers | Sow outdoors | Apr 19 – Jul 30 |
| Summer squash | Sow outdoors | Apr 5 – May 20 |
| Winter squash & pumpkins | Sow outdoors | Apr 19 – May 20 |
| Snap beans | Sow outdoors | Apr 5 – Aug 22 |
| Sweet corn | Sow outdoors | Apr 5 – Jul 20 |
| Watermelon & cantaloupe | Sow outdoors | Apr 19 – May 20 |
| Okra | Sow outdoors | Apr 12 – May 5 |
| Peas | Sow outdoors (spring) | Feb 17 – Apr 4 |
| Potatoes | Plant outdoors (spring) | Feb 17 – Apr 19 |
| Onions | Start seeds indoors (spring) | Jan 6 – Feb 2 |
| Onions | Transplant outdoors (spring) | Mar 6 – Apr 4 |
| Broccoli | Start seeds indoors (spring) | Jan 30 – Mar 5 |
| Broccoli | Transplant outdoors (spring) | Mar 6 – Apr 4 |
| Broccoli | Start seeds indoors (fall) | Jul 10 – Jul 20 |
| Broccoli | Transplant outdoors (fall) | Aug 9 – Aug 20 |
| Cabbage | Start seeds indoors (spring) | Jan 20 – Feb 17 |
| Cabbage | Transplant outdoors (spring) | Feb 17 – Mar 20 |
| Cabbage | Start seeds indoors (fall) | Jun 30 – Jul 30 |
| Cabbage | Transplant outdoors (fall) | Jul 30 – Aug 30 |
| Leaf lettuce | Sow outdoors (spring) | Feb 17 – May 5 |
| Leaf lettuce | Sow outdoors (fall) | Jul 30 – Sep 15 |
| Spinach | Sow outdoors (spring) | Feb 10 – Mar 26 |
| Spinach | Sow outdoors (fall) | Aug 16 – Sep 20 |
| Radishes | Sow outdoors (spring) | Feb 17 – Apr 9 |
| Radishes | Sow outdoors (fall) | Jul 30 – Sep 30 |
| Kale | Sow outdoors (spring) | Mar 6 – Mar 26 |
| Kale | Sow outdoors (fall) | Jul 23 – Aug 30 |
| Carrots | Sow outdoors (spring) | Mar 20 – May 5 |
| Carrots | Sow outdoors (fall) | Jun 30 – Aug 15 |
| Garlic | Plant outdoors (fall) | Oct 30 – Nov 30 |
Where these dates come from
ZIP code 71475 is matched to the NOAA station Leesville, LA, 12.6 km away, at 28 ft elevation (248 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Leesville, LA (used) | 28 ft | Mar 20 | Nov 9 |
| Ft Polk Fullerton Lndg Strip, LA | 310 ft | Mar 1 | Nov 23 |
| Peason Ridge Range, LA | 365 ft | Mar 8 | Nov 18 |
| Hodges Gardens, LA | 420 ft | Mar 3 | Nov 27 |
Frost dates near Slagle
- Leesville, LA 71446 · last Mar 20, first Nov 9
- Simpson, LA 71474 · last Mar 1, first Nov 23
- Kurthwood, LA 71443 · last Mar 3, first Nov 27
- New Llano, LA 71461 · last Mar 20, first Nov 9
- Fort Polk, LA 71459 · last Mar 8, first Nov 21
- Anacoco, LA 71403 · last Mar 1, first Nov 30
- Hornbeck, LA 71439 · last Mar 3, first Nov 27
- Mora, LA 71455 · last Mar 2, first Nov 27
Frequently asked questions
- When is the last frost in Slagle, LA?
- For ZIP code 71475, the average last spring frost (32°F) is March 20, based on NOAA 1991-2020 climate normals for the Leesville, LA weather station. There is a 1-in-10 chance of a frost after April 12.
- When is the first frost in Slagle, LA?
- The average first fall frost (32°F) is November 9. There is a 1-in-10 chance of frost by October 26, so tender plants are at risk from that point on.
- How long is the growing season in 71475?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 234 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.