Frost dates for 36034Glenwood, AL
The average last spring frost in Glenwood is March 18 and the average first fall frost is November 10, giving a typical growing season of about 236 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 18
- Average first fall frost
- Nov 10
- Growing season
- 236 days
Safer after Apr 7 (1-in-10 risk)
Possible by Oct 28 (1-in-10 risk)
First frost typically in 7 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 15 · Apr 2 · Apr 20 | Oct 18 · Oct 31 · Nov 13 | 210 days | 100% |
| Frost / freeze (32°F) | Feb 24 · Mar 18 · Apr 7 | Oct 28 · Nov 10 · Nov 29 | 236 days | 100% |
| Hard freeze (28°F) | Feb 3 · Mar 2 · Mar 23 | Nov 5 · Nov 21 · Dec 20 | 266 days | 100% |
Planting calendar for Glenwood
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 21 |
| 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 – Jul 31 |
| Summer squash | Sow outdoors | Apr 3 – May 18 |
| Winter squash & pumpkins | Sow outdoors | Apr 17 – May 18 |
| Snap beans | Sow outdoors | Apr 3 – Aug 23 |
| Sweet corn | Sow outdoors | Apr 3 – Jul 21 |
| 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 11 – Jul 21 |
| Broccoli | Transplant outdoors (fall) | Aug 10 – Aug 21 |
| Cabbage | Start seeds indoors (spring) | Jan 18 – Feb 15 |
| Cabbage | Transplant outdoors (spring) | Feb 15 – Mar 18 |
| Cabbage | Start seeds indoors (fall) | Jul 1 – Jul 31 |
| Cabbage | Transplant outdoors (fall) | Jul 31 – Aug 31 |
| Leaf lettuce | Sow outdoors (spring) | Feb 15 – May 3 |
| Leaf lettuce | Sow outdoors (fall) | Jul 31 – Sep 16 |
| Spinach | Sow outdoors (spring) | Feb 8 – Mar 24 |
| Spinach | Sow outdoors (fall) | Aug 17 – Sep 21 |
| Radishes | Sow outdoors (spring) | Feb 15 – Apr 7 |
| Radishes | Sow outdoors (fall) | Jul 31 – Oct 1 |
| Kale | Sow outdoors (spring) | Mar 4 – Mar 24 |
| Kale | Sow outdoors (fall) | Jul 24 – Aug 31 |
| Carrots | Sow outdoors (spring) | Mar 18 – May 3 |
| Carrots | Sow outdoors (fall) | Jul 1 – Aug 16 |
| Garlic | Plant outdoors (fall) | Oct 31 – Dec 1 |
Where these dates come from
ZIP code 36034 is matched to the NOAA station Troy Muni Ap, AL, 26.5 km away, at 397 ft elevation (115 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Troy Muni Ap, AL (used) | 397 ft | Mar 18 | Nov 10 |
| Troy 2 W, AL | 472 ft | Mar 17 | Nov 16 |
| Troy, AL | 542 ft | Mar 10 | Nov 21 |
| Highland Home, AL | 433 ft | Mar 31 | Nov 5 |
Frost dates near Glenwood
- Luverne, AL 36049 · last Mar 31, first Nov 5
- Brantley, AL 36009 · last Mar 25, first Nov 9
- Goshen, AL 36035 · last Mar 18, first Nov 10
- Troy, AL 36079 · last Mar 10, first Nov 21
- Rutledge, AL 36071 · last Mar 28, first Nov 7
- Petrey, AL 36062 · last Mar 31, first Nov 5
- Jack, AL 36346 · last Mar 9, first Nov 21
- Dozier, AL 36028 · last Mar 25, first Nov 9
Frequently asked questions
- When is the last frost in Glenwood, AL?
- For ZIP code 36034, the average last spring frost (32°F) is March 18, based on NOAA 1991-2020 climate normals for the Troy Muni Ap, AL weather station. There is a 1-in-10 chance of a frost after April 7.
- When is the first frost in Glenwood, AL?
- The average first fall frost (32°F) is November 10. There is a 1-in-10 chance of frost by October 28, so tender plants are at risk from that point on.
- How long is the growing season in 36034?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 236 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.