Frost dates for 38231Henry, TN
The average last spring frost in Henry is April 7 and the average first fall frost is October 31, giving a typical growing season of about 206 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 7
- Average first fall frost
- Oct 31
- Growing season
- 206 days
Safer after Apr 22 (1-in-10 risk)
Possible by Oct 19 (1-in-10 risk)
Last frost typically in 155 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) | Apr 4 · Apr 19 · May 4 | Oct 9 · Oct 22 · Nov 1 | 184 days | 100% |
| Frost / freeze (32°F) | Mar 23 · Apr 7 · Apr 22 | Oct 19 · Oct 31 · Nov 12 | 206 days | 100% |
| Hard freeze (28°F) | Mar 8 · Mar 28 · Apr 11 | Oct 30 · Nov 8 · Nov 27 | 228 days | 100% |
Planting calendar for Henry
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 7 – May 13 |
| Tomatoes | Transplant outdoors | Apr 23 – Jul 11 |
| Peppers | Start seeds indoors | Mar 7 – Apr 7 |
| Peppers | Transplant outdoors | May 7 – Jun 7 |
| Eggplant | Start seeds indoors | Mar 24 – Apr 22 |
| Eggplant | Transplant outdoors | May 7 – Jun 7 |
| Cucumbers | Sow outdoors | May 7 – Jul 21 |
| Summer squash | Sow outdoors | Apr 23 – Jun 7 |
| Winter squash & pumpkins | Sow outdoors | May 7 – Jun 7 |
| Snap beans | Sow outdoors | Apr 23 – Aug 13 |
| Sweet corn | Sow outdoors | Apr 23 – Jul 11 |
| Watermelon & cantaloupe | Sow outdoors | May 7 – Jun 7 |
| Okra | Sow outdoors | Apr 30 – May 23 |
| Peas | Sow outdoors (spring) | Mar 7 – Apr 22 |
| Potatoes | Plant outdoors (spring) | Mar 7 – May 7 |
| Onions | Start seeds indoors (spring) | Jan 24 – Feb 20 |
| Onions | Transplant outdoors (spring) | Mar 24 – Apr 22 |
| Broccoli | Start seeds indoors (spring) | Feb 17 – Mar 23 |
| Broccoli | Transplant outdoors (spring) | Mar 24 – Apr 22 |
| Broccoli | Start seeds indoors (fall) | Jul 1 – Jul 11 |
| Broccoli | Transplant outdoors (fall) | Jul 31 – Aug 11 |
| Cabbage | Start seeds indoors (spring) | Feb 7 – Mar 7 |
| Cabbage | Transplant outdoors (spring) | Mar 7 – Apr 7 |
| Cabbage | Start seeds indoors (fall) | Jun 21 – Jul 21 |
| Cabbage | Transplant outdoors (fall) | Jul 21 – Aug 21 |
| Leaf lettuce | Sow outdoors (spring) | Mar 7 – May 23 |
| Leaf lettuce | Sow outdoors (fall) | Jul 21 – Sep 6 |
| Spinach | Sow outdoors (spring) | Feb 28 – Apr 13 |
| Spinach | Sow outdoors (fall) | Aug 7 – Sep 11 |
| Radishes | Sow outdoors (spring) | Mar 7 – Apr 27 |
| Radishes | Sow outdoors (fall) | Jul 21 – Sep 21 |
| Kale | Sow outdoors (spring) | Mar 24 – Apr 13 |
| Kale | Sow outdoors (fall) | Jul 14 – Aug 21 |
| Carrots | Sow outdoors (spring) | Apr 7 – May 23 |
| Carrots | Sow outdoors (fall) | Jun 21 – Aug 6 |
| Garlic | Plant outdoors (fall) | Oct 21 – Nov 21 |
Where these dates come from
ZIP code 38231 is matched to the NOAA station Paris 2 Se, TN, 14.5 km away, at 443 ft elevation (105 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Paris 2 Se, TN (used) | 443 ft | Apr 7 | Oct 31 |
| Huntingdon Wtp, TN | 440 ft | Apr 2 | Oct 31 |
| Dresden, TN | 450 ft | Apr 3 | Nov 1 |
| Big Sandy, TN | 365 ft | Apr 8 | Oct 29 |
Frost dates near Henry
- Mc Kenzie, TN 38201 · last Apr 2, first Oct 31
- Mansfield, TN 38236 · last Apr 7, first Oct 31
- Como, TN 38223 · last Apr 3, first Nov 1
- Paris, TN 38242 · last Apr 7, first Oct 31
- Cottage Grove, TN 38224 · last Apr 7, first Oct 31
- Gleason, TN 38229 · last Apr 3, first Nov 1
- Huntingdon, TN 38344 · last Apr 2, first Oct 31
- Hollow Rock, TN 38342 · last Apr 2, first Oct 31
Frequently asked questions
- When is the last frost in Henry, TN?
- For ZIP code 38231, the average last spring frost (32°F) is April 7, based on NOAA 1991-2020 climate normals for the Paris 2 Se, TN weather station. There is a 1-in-10 chance of a frost after April 22.
- When is the first frost in Henry, TN?
- The average first fall frost (32°F) is October 31. There is a 1-in-10 chance of frost by October 19, so tender plants are at risk from that point on.
- How long is the growing season in 38231?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 206 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.