Frost dates for 38474Mount Pleasant, TN
The average last spring frost in Mount Pleasant is April 5 and the average first fall frost is October 28, giving a typical growing season of about 204 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 5
- Average first fall frost
- Oct 28
- Growing season
- 204 days
Safer after Apr 21 (1-in-10 risk)
Possible by Oct 14 (1-in-10 risk)
Last frost typically in 153 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 29 · Apr 15 · May 2 | Oct 6 · Oct 20 · Nov 1 | 183 days | 100% |
| Frost / freeze (32°F) | Mar 18 · Apr 5 · Apr 21 | Oct 14 · Oct 28 · Nov 10 | 204 days | 100% |
| Hard freeze (28°F) | Mar 4 · Mar 25 · Apr 12 | Oct 22 · Nov 6 · Nov 24 | 226 days | 100% |
Planting calendar for Mount Pleasant
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 | Mar 5 – May 11 |
| Tomatoes | Transplant outdoors | Apr 21 – Jul 8 |
| Peppers | Start seeds indoors | Mar 5 – Apr 5 |
| Peppers | Transplant outdoors | May 5 – Jun 5 |
| Eggplant | Start seeds indoors | Mar 22 – Apr 20 |
| Eggplant | Transplant outdoors | May 5 – Jun 5 |
| Cucumbers | Sow outdoors | May 5 – Jul 18 |
| Summer squash | Sow outdoors | Apr 21 – Jun 5 |
| Winter squash & pumpkins | Sow outdoors | May 5 – Jun 5 |
| Snap beans | Sow outdoors | Apr 21 – Aug 10 |
| Sweet corn | Sow outdoors | Apr 21 – Jul 8 |
| Watermelon & cantaloupe | Sow outdoors | May 5 – Jun 5 |
| Okra | Sow outdoors | Apr 28 – May 21 |
| Peas | Sow outdoors (spring) | Mar 5 – Apr 20 |
| Potatoes | Plant outdoors (spring) | Mar 5 – May 5 |
| Onions | Start seeds indoors (spring) | Jan 22 – Feb 18 |
| Onions | Transplant outdoors (spring) | Mar 22 – Apr 20 |
| Broccoli | Start seeds indoors (spring) | Feb 15 – Mar 21 |
| Broccoli | Transplant outdoors (spring) | Mar 22 – Apr 20 |
| Broccoli | Start seeds indoors (fall) | Jun 28 – Jul 8 |
| Broccoli | Transplant outdoors (fall) | Jul 28 – Aug 8 |
| Cabbage | Start seeds indoors (spring) | Feb 5 – Mar 5 |
| Cabbage | Transplant outdoors (spring) | Mar 5 – Apr 5 |
| Cabbage | Start seeds indoors (fall) | Jun 18 – Jul 18 |
| Cabbage | Transplant outdoors (fall) | Jul 18 – Aug 18 |
| Leaf lettuce | Sow outdoors (spring) | Mar 5 – May 21 |
| Leaf lettuce | Sow outdoors (fall) | Jul 18 – Sep 3 |
| Spinach | Sow outdoors (spring) | Feb 26 – Apr 11 |
| Spinach | Sow outdoors (fall) | Aug 4 – Sep 8 |
| Radishes | Sow outdoors (spring) | Mar 5 – Apr 25 |
| Radishes | Sow outdoors (fall) | Jul 18 – Sep 18 |
| Kale | Sow outdoors (spring) | Mar 22 – Apr 11 |
| Kale | Sow outdoors (fall) | Jul 11 – Aug 18 |
| Carrots | Sow outdoors (spring) | Apr 5 – May 21 |
| Carrots | Sow outdoors (fall) | Jun 18 – Aug 3 |
| Garlic | Plant outdoors (fall) | Oct 18 – Nov 18 |
Where these dates come from
ZIP code 38474 is matched to the NOAA station Mt Pleasant 1N, TN, 3 km away, at 778 ft elevation (112 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Mt Pleasant 1N, TN (used) | 778 ft | Apr 5 | Oct 28 |
| Columbia 3 Wnw, TN | 650 ft | Apr 10 | Oct 27 |
| Neapolis Res & Edu Stn, TN | 700 ft | Apr 5 | Oct 29 |
| Hohenwald, TN | 980 ft | Apr 5 | Nov 1 |
Frost dates near Mount Pleasant
- Hampshire, TN 38461 · last Apr 5, first Oct 28
- Williamsport, TN 38487 · last Apr 10, first Oct 27
- Summertown, TN 38483 · last Apr 8, first Oct 31
- Columbia, TN 38401 · last Apr 10, first Oct 27
- Culleoka, TN 38451 · last Apr 14, first Oct 22
- Lynnville, TN 38472 · last Apr 14, first Oct 22
- Ethridge, TN 38456 · last Apr 8, first Oct 31
- Hohenwald, TN 38462 · last Apr 5, first Nov 1
Frequently asked questions
- When is the last frost in Mount Pleasant, TN?
- For ZIP code 38474, the average last spring frost (32°F) is April 5, based on NOAA 1991-2020 climate normals for the Mt Pleasant 1N, TN weather station. There is a 1-in-10 chance of a frost after April 21.
- When is the first frost in Mount Pleasant, TN?
- The average first fall frost (32°F) is October 28. There is a 1-in-10 chance of frost by October 14, so tender plants are at risk from that point on.
- How long is the growing season in 38474?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 204 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.