When to plant in Kuna, ID
USDA Zone 7aKuna, Idaho frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 7a, Kuna 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 Kuna is now 6 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
BOISE AIR TERMINAL · 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 Kuna’s own odds, recorded at BOISE AIR TERMINAL.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 29 | May 8 | Apr 23 | Sep 25 | Oct 8 | Oct 25 |
| 32°F | May 9 | Apr 24 | Apr 4 | Oct 5 | Oct 21 | Nov 5 |
| 28°F | Apr 25 | Apr 2 | Mar 10 | Oct 17 | Oct 31 | Nov 19 |
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 Kuna, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 28 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.
Kuna planting FAQ
When is the last spring frost in Kuna, ID?
On average, the last spring frost in Kuna is around April 24 (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 Kuna, ID?
The first fall frost in Kuna typically arrives around October 21 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Kuna in?
Kuna is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Kuna?
Kuna has about 180 frost-free days — a moderate growing season — between the average last spring frost (April 24) and first fall frost (October 21).
When should I plant tomatoes in Kuna?
For Kuna, sow tomatoes indoors about February 27–March 13 and move the seedlings out around May 1, after the last spring frost.
Never miss a window in Kuna
An email when it’s time to start seeds, transplant, and sow — timed to Kuna’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Meridian · 10 km
- Nampa · 15 km
- Boise City · 16 km
- Garden City · 18 km
- Eagle · 19 km
- Star · 21 km
- Caldwell · 25 km
- Middleton · 27 km
Frost dates recorded at BOISE AIR TERMINAL, 14 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 Kuna, ID — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024131. Retrieved from https://blissgarden.com/idaho/kuna.