Frost dates for 38339Guys, TN
The average last spring frost in Guys is April 6 and the average first fall frost is October 30, giving a typical growing season of about 206 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 6
- Average first fall frost
- Oct 30
- Growing season
- 206 days
Safer after Apr 20 (1-in-10 risk)
Possible by Oct 18 (1-in-10 risk)
Last frost typically in 154 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 2 · Apr 17 · May 4 | Oct 10 · Oct 21 · Nov 1 | 187 days | 100% |
| Frost / freeze (32°F) | Mar 19 · Apr 6 · Apr 20 | Oct 18 · Oct 30 · Nov 12 | 206 days | 100% |
| Hard freeze (28°F) | Mar 4 · Mar 24 · Apr 11 | Oct 28 · Nov 9 · Nov 26 | 232 days | 100% |
Planting calendar for Guys
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 6 – May 12 |
| Tomatoes | Transplant outdoors | Apr 22 – Jul 10 |
| Peppers | Start seeds indoors | Mar 6 – Apr 6 |
| Peppers | Transplant outdoors | May 6 – Jun 6 |
| Eggplant | Start seeds indoors | Mar 23 – Apr 21 |
| Eggplant | Transplant outdoors | May 6 – Jun 6 |
| Cucumbers | Sow outdoors | May 6 – Jul 20 |
| Summer squash | Sow outdoors | Apr 22 – Jun 6 |
| Winter squash & pumpkins | Sow outdoors | May 6 – Jun 6 |
| Snap beans | Sow outdoors | Apr 22 – Aug 12 |
| Sweet corn | Sow outdoors | Apr 22 – Jul 10 |
| Watermelon & cantaloupe | Sow outdoors | May 6 – Jun 6 |
| Okra | Sow outdoors | Apr 29 – May 22 |
| Peas | Sow outdoors (spring) | Mar 6 – Apr 21 |
| Potatoes | Plant outdoors (spring) | Mar 6 – May 6 |
| Onions | Start seeds indoors (spring) | Jan 23 – Feb 19 |
| Onions | Transplant outdoors (spring) | Mar 23 – Apr 21 |
| Broccoli | Start seeds indoors (spring) | Feb 16 – Mar 22 |
| Broccoli | Transplant outdoors (spring) | Mar 23 – Apr 21 |
| Broccoli | Start seeds indoors (fall) | Jun 30 – Jul 10 |
| Broccoli | Transplant outdoors (fall) | Jul 30 – Aug 10 |
| Cabbage | Start seeds indoors (spring) | Feb 6 – Mar 6 |
| Cabbage | Transplant outdoors (spring) | Mar 6 – Apr 6 |
| Cabbage | Start seeds indoors (fall) | Jun 20 – Jul 20 |
| Cabbage | Transplant outdoors (fall) | Jul 20 – Aug 20 |
| Leaf lettuce | Sow outdoors (spring) | Mar 6 – May 22 |
| Leaf lettuce | Sow outdoors (fall) | Jul 20 – Sep 5 |
| Spinach | Sow outdoors (spring) | Feb 27 – Apr 12 |
| Spinach | Sow outdoors (fall) | Aug 6 – Sep 10 |
| Radishes | Sow outdoors (spring) | Mar 6 – Apr 26 |
| Radishes | Sow outdoors (fall) | Jul 20 – Sep 20 |
| Kale | Sow outdoors (spring) | Mar 23 – Apr 12 |
| Kale | Sow outdoors (fall) | Jul 13 – Aug 20 |
| Carrots | Sow outdoors (spring) | Apr 6 – May 22 |
| Carrots | Sow outdoors (fall) | Jun 20 – Aug 5 |
| Garlic | Plant outdoors (fall) | Oct 20 – Nov 20 |
Where these dates come from
ZIP code 38339 is matched to the NOAA station Selmer, TN, 18.2 km away, at 470 ft elevation (9 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Selmer, TN (used) | 470 ft | Apr 6 | Oct 30 |
| Corinth 7 Sw, MS | 385 ft | Apr 2 | Nov 1 |
| Savannah 6 Sw, TN | 420 ft | Mar 31 | Nov 1 |
| Iuka, MS | 600 ft | Apr 9 | Oct 28 |
Frost dates near Guys
- Michie, TN 38357 · last Mar 31, first Nov 1
- Ramer, TN 38367 · last Apr 6, first Oct 30
- Corinth, MS 38835 · last Apr 2, first Nov 1
- Chewalla, TN 38393 · last Apr 2, first Nov 1
- Glen, MS 38846 · last Apr 2, first Nov 1
- Shiloh, TN 38376 · last Mar 31, first Nov 1
- Selmer, TN 38375 · last Apr 6, first Oct 30
- Stantonville, TN 38379 · last Mar 31, first Nov 1
Frequently asked questions
- When is the last frost in Guys, TN?
- For ZIP code 38339, the average last spring frost (32°F) is April 6, based on NOAA 1991-2020 climate normals for the Selmer, TN weather station. There is a 1-in-10 chance of a frost after April 20.
- When is the first frost in Guys, TN?
- The average first fall frost (32°F) is October 30. There is a 1-in-10 chance of frost by October 18, so tender plants are at risk from that point on.
- How long is the growing season in 38339?
- 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.