Frost dates for 36421Andalusia, AL
The average last spring frost in Andalusia is March 25 and the average first fall frost is November 9, giving a typical growing season of about 230 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 25
- Average first fall frost
- Nov 9
- Growing season
- 230 days
Safer after Apr 14 (1-in-10 risk)
Possible by Oct 25 (1-in-10 risk)
First frost typically in 8 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 18 · Apr 6 · Apr 23 | Oct 18 · Nov 1 · Nov 15 | 207 days | 100% |
| Frost / freeze (32°F) | Feb 28 · Mar 25 · Apr 14 | Oct 25 · Nov 9 · Dec 1 | 230 days | 100% |
| Hard freeze (28°F) | Feb 6 · Mar 7 · Mar 29 | Nov 4 · Nov 22 · Dec 15 | 259 days | 100% |
Planting calendar for Andalusia
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 22 – Apr 30 |
| Tomatoes | Transplant outdoors | Apr 10 – Jul 20 |
| Peppers | Start seeds indoors | Feb 22 – Mar 25 |
| Peppers | Transplant outdoors | Apr 24 – May 25 |
| Eggplant | Start seeds indoors | Mar 11 – Apr 9 |
| Eggplant | Transplant outdoors | Apr 24 – May 25 |
| Cucumbers | Sow outdoors | Apr 24 – Jul 30 |
| Summer squash | Sow outdoors | Apr 10 – May 25 |
| Winter squash & pumpkins | Sow outdoors | Apr 24 – May 25 |
| Snap beans | Sow outdoors | Apr 10 – Aug 22 |
| Sweet corn | Sow outdoors | Apr 10 – Jul 20 |
| Watermelon & cantaloupe | Sow outdoors | Apr 24 – May 25 |
| Okra | Sow outdoors | Apr 17 – May 10 |
| Peas | Sow outdoors (spring) | Feb 22 – Apr 9 |
| Potatoes | Plant outdoors (spring) | Feb 22 – Apr 24 |
| Onions | Start seeds indoors (spring) | Jan 11 – Feb 7 |
| Onions | Transplant outdoors (spring) | Mar 11 – Apr 9 |
| Broccoli | Start seeds indoors (spring) | Feb 4 – Mar 10 |
| Broccoli | Transplant outdoors (spring) | Mar 11 – Apr 9 |
| Broccoli | Start seeds indoors (fall) | Jul 10 – Jul 20 |
| Broccoli | Transplant outdoors (fall) | Aug 9 – Aug 20 |
| Cabbage | Start seeds indoors (spring) | Jan 25 – Feb 22 |
| Cabbage | Transplant outdoors (spring) | Feb 22 – Mar 25 |
| Cabbage | Start seeds indoors (fall) | Jun 30 – Jul 30 |
| Cabbage | Transplant outdoors (fall) | Jul 30 – Aug 30 |
| Leaf lettuce | Sow outdoors (spring) | Feb 22 – May 10 |
| Leaf lettuce | Sow outdoors (fall) | Jul 30 – Sep 15 |
| Spinach | Sow outdoors (spring) | Feb 15 – Mar 31 |
| Spinach | Sow outdoors (fall) | Aug 16 – Sep 20 |
| Radishes | Sow outdoors (spring) | Feb 22 – Apr 14 |
| Radishes | Sow outdoors (fall) | Jul 30 – Sep 30 |
| Kale | Sow outdoors (spring) | Mar 11 – Mar 31 |
| Kale | Sow outdoors (fall) | Jul 23 – Aug 30 |
| Carrots | Sow outdoors (spring) | Mar 25 – May 10 |
| Carrots | Sow outdoors (fall) | Jun 30 – Aug 15 |
| Garlic | Plant outdoors (fall) | Oct 30 – Nov 30 |
Where these dates come from
ZIP code 36421 is matched to the NOAA station Andalusia 3 W, AL, 2.5 km away, at 250 ft elevation (65 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Andalusia 3 W, AL (used) | 250 ft | Mar 25 | Nov 9 |
| Andalusia Opp Ap, AL | 310 ft | Feb 28 | Nov 28 |
| Florala Muni Ap, AL | 314 ft | Mar 4 | Nov 26 |
| Evergreen, AL | 290 ft | Mar 13 | Nov 19 |
Frost dates near Andalusia
- Andalusia, AL 36420 · last Mar 25, first Nov 9
- River Falls, AL 36476 · last Mar 25, first Nov 9
- Gantt, AL 36038 · last Mar 25, first Nov 9
- Red Level, AL 36474 · last Mar 25, first Nov 9
- Dozier, AL 36028 · last Mar 25, first Nov 9
- Opp, AL 36467 · last Mar 25, first Nov 9
- Brooklyn, AL 36429 · last Mar 25, first Nov 9
- Mc Kenzie, AL 36456 · last Mar 13, first Nov 19
Frequently asked questions
- When is the last frost in Andalusia, AL?
- For ZIP code 36421, the average last spring frost (32°F) is March 25, based on NOAA 1991-2020 climate normals for the Andalusia 3 W, AL weather station. There is a 1-in-10 chance of a frost after April 14.
- When is the first frost in Andalusia, AL?
- The average first fall frost (32°F) is November 9. There is a 1-in-10 chance of frost by October 25, so tender plants are at risk from that point on.
- How long is the growing season in 36421?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 230 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.