When to plant in Juneau city and, AK
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Juneau city and, Alaska — all computed from Juneau city and's nearest NOAA weather station.
Zone 6a means Juneau city and sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
ANNEX CREEK · 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 Juneau city and’s own odds, recorded at ANNEX CREEK.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Jun 1 | May 19 | May 4 | Sep 17 | Sep 29 | Oct 13 |
| 32°F | May 18 | May 3 | Apr 18 | Oct 1 | Oct 14 | Oct 29 |
| 28°F | Apr 30 | Apr 11 | Mar 26 | Oct 14 | Oct 31 | Nov 14 |
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 Juneau city and, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 22 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.
Juneau city and planting FAQ
When is the last spring frost in Juneau city and, AK?
Juneau city and's average last spring frost falls near May 3 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Juneau city and, AK?
In Juneau city and, the first 32°F freeze of fall lands around October 14 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Juneau city and in?
Juneau city and is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Juneau city and?
There are roughly 164 frost-free days in Juneau city and (a moderate growing season), running from the average last frost around May 3 to the first fall frost near October 14.
When should I plant tomatoes in Juneau city and?
In Juneau city and, start tomato seeds indoors around March 8–March 22, then transplant seedlings outdoors around May 10 once the danger of frost has passed.
Never miss a window in Juneau city and
An email when it’s time to start seeds, transplant, and sow — timed to Juneau city and’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Anchorage · 899 km
- North Lakes · 913 km
- Knik-Fairview · 925 km
- Badger · 996 km
- Fairbanks · 1008 km
- College · 1016 km
- Birch Bay · 1289 km
- Lynden · 1298 km
Frost dates recorded at ANNEX CREEK, 8 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 Juneau city and, AK — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00500363. Retrieved from https://blissgarden.com/alaska/juneau-city-and.