Frost dates for 36744Greensboro, AL
The average last spring frost in Greensboro is March 18 and the average first fall frost is November 12, giving a typical growing season of about 240 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 18
- Average first fall frost
- Nov 12
- Growing season
- 240 days
Safer after Apr 6 (1-in-10 risk)
Possible by Oct 30 (1-in-10 risk)
First frost typically in 9 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 2 · Apr 19 | Oct 21 · Nov 1 · Nov 17 | 215 days | 100% |
| Frost / freeze (32°F) | Feb 25 · Mar 18 · Apr 6 | Oct 30 · Nov 12 · Dec 1 | 240 days | 100% |
| Hard freeze (28°F) | Feb 5 · Mar 3 · Mar 26 | Nov 7 · Nov 24 · Dec 21 | 266 days | 100% |
Planting calendar for Greensboro
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 15 – Apr 23 |
| Tomatoes | Transplant outdoors | Apr 3 – Jul 23 |
| Peppers | Start seeds indoors | Feb 15 – Mar 18 |
| Peppers | Transplant outdoors | Apr 17 – May 18 |
| Eggplant | Start seeds indoors | Mar 4 – Apr 2 |
| Eggplant | Transplant outdoors | Apr 17 – May 18 |
| Cucumbers | Sow outdoors | Apr 17 – Aug 2 |
| Summer squash | Sow outdoors | Apr 3 – May 18 |
| Winter squash & pumpkins | Sow outdoors | Apr 17 – May 18 |
| Snap beans | Sow outdoors | Apr 3 – Aug 25 |
| Sweet corn | Sow outdoors | Apr 3 – Jul 23 |
| Watermelon & cantaloupe | Sow outdoors | Apr 17 – May 18 |
| Okra | Sow outdoors | Apr 10 – May 3 |
| Peas | Sow outdoors (spring) | Feb 15 – Apr 2 |
| Potatoes | Plant outdoors (spring) | Feb 15 – Apr 17 |
| Onions | Start seeds indoors (spring) | Jan 4 – Jan 31 |
| Onions | Transplant outdoors (spring) | Mar 4 – Apr 2 |
| Broccoli | Start seeds indoors (spring) | Jan 28 – Mar 3 |
| Broccoli | Transplant outdoors (spring) | Mar 4 – Apr 2 |
| Broccoli | Start seeds indoors (fall) | Jul 13 – Jul 23 |
| Broccoli | Transplant outdoors (fall) | Aug 12 – Aug 23 |
| Cabbage | Start seeds indoors (spring) | Jan 18 – Feb 15 |
| Cabbage | Transplant outdoors (spring) | Feb 15 – Mar 18 |
| Cabbage | Start seeds indoors (fall) | Jul 3 – Aug 2 |
| Cabbage | Transplant outdoors (fall) | Aug 2 – Sep 2 |
| Leaf lettuce | Sow outdoors (spring) | Feb 15 – May 3 |
| Leaf lettuce | Sow outdoors (fall) | Aug 2 – Sep 18 |
| Spinach | Sow outdoors (spring) | Feb 8 – Mar 24 |
| Spinach | Sow outdoors (fall) | Aug 19 – Sep 23 |
| Radishes | Sow outdoors (spring) | Feb 15 – Apr 7 |
| Radishes | Sow outdoors (fall) | Aug 2 – Oct 3 |
| Kale | Sow outdoors (spring) | Mar 4 – Mar 24 |
| Kale | Sow outdoors (fall) | Jul 26 – Sep 2 |
| Carrots | Sow outdoors (spring) | Mar 18 – May 3 |
| Carrots | Sow outdoors (fall) | Jul 3 – Aug 18 |
| Garlic | Plant outdoors (fall) | Nov 2 – Dec 3 |
Where these dates come from
ZIP code 36744 is matched to the NOAA station Greensboro, AL, 3 km away, at 249 ft elevation (26 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Greensboro, AL (used) | 249 ft | Mar 18 | Nov 12 |
| Greensboro 2 Wnw, AL | 280 ft | Mar 17 | Nov 11 |
| Demopolis L&D, AL | 100 ft | Mar 16 | Nov 14 |
| Centreville 6 Sw, AL | 450 ft | Apr 2 | Nov 2 |
Frost dates near Greensboro
- Sawyerville, AL 36776 · last Mar 18, first Nov 12
- Newbern, AL 36765 · last Mar 18, first Nov 12
- Akron, AL 35441 · last Mar 18, first Nov 12
- Moundville, AL 35474 · last Mar 18, first Nov 12
- Gallion, AL 36742 · last Mar 16, first Nov 14
- Marion, AL 36756 · last Mar 18, first Nov 12
- Forkland, AL 36740 · last Mar 16, first Nov 14
- Uniontown, AL 36786 · last Mar 21, first Nov 5
Frequently asked questions
- When is the last frost in Greensboro, AL?
- For ZIP code 36744, the average last spring frost (32°F) is March 18, based on NOAA 1991-2020 climate normals for the Greensboro, AL weather station. There is a 1-in-10 chance of a frost after April 6.
- When is the first frost in Greensboro, AL?
- The average first fall frost (32°F) is November 12. There is a 1-in-10 chance of frost by October 30, so tender plants are at risk from that point on.
- How long is the growing season in 36744?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 240 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.