When to plant in Middle Valley, TN
USDA Zone 8aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Middle Valley, Tennessee — all computed from Middle Valley's nearest NOAA weather station.
In zone 8a, Middle Valley supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Middle Valley is now 6 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
SODDY DAISY-MOWBRAY MTN · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Middle Valley’s own odds, recorded at SODDY DAISY-MOWBRAY MTN.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 8 | Apr 20 | Apr 2 | Oct 5 | Oct 20 | Nov 2 |
| 32°F | Apr 28 | Apr 7 | Mar 20 | Oct 13 | Oct 29 | Nov 12 |
| 28°F | Apr 13 | Mar 27 | Mar 6 | Oct 23 | Nov 8 | Nov 28 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Middle Valley, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 24 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Middle Valley planting FAQ
When is the last spring frost in Middle Valley, TN?
On average, the last spring frost in Middle Valley is around April 7 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Middle Valley, TN?
Expect Middle Valley's first fall frost near October 29 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Middle Valley in?
Middle Valley is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Middle Valley?
Middle Valley has about 205 frost-free days — a moderate growing season — between the average last spring frost (April 7) and first fall frost (October 29).
When should I plant tomatoes in Middle Valley?
For Middle Valley, sow tomatoes indoors about February 10–February 24 and move the seedlings out around April 14, after the last spring frost.
Never miss a window in Middle Valley
An email when it’s time to start seeds, transplant, and sow — timed to Middle Valley’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Soddy-Daisy · 8 km
- Red Bank · 13 km
- Chattanooga · 15 km
- Collegedale · 20 km
- East Ridge · 22 km
- Fort Oglethorpe · 29 km
- Cleveland · 30 km
- Dalton · 51 km
Frost dates recorded at SODDY DAISY-MOWBRAY MTN, 11 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Middle Valley, TN — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00408445. Retrieved from https://blissgarden.com/tennessee/middle-valley.