When to plant zucchini in Juneau: 3 June – 20 July

In Juneau, zucchini: sow for seedlings from 22 April to 29 June; plant into a greenhouse from 13 May to 20 July; plant out into open ground from 3 June to 20 July.

Zucchini in Juneau: soil, season and weather

In the median year the top 7 cm of soil in Juneau does not reach 18 °C, the minimum on the zucchini card, before August; the date follows the last frost (27 May), and the bed stays cooler than the card asks.

Last spring frost	27 May
First autumn frost	6 October, 125 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	9 July – 25 August
Days left for picking	89
Daylight	16:35 on 13 May, 17:51 on 3 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, June, has 20 rainy days

The same dates in Juneau hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in Juneau: care after planting

Planted on 3 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Juneau during the zucchini season

About 1497 mm of rain falls in the season; June is the driest month (184 mm) and October the wettest (399 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	12.5	5.6	184	20	18:14
July	14.6	8.2	222	19	17:37
August	14.1	8	313	20	15:27
September	10.4	4.9	379	21	12:54
October	4.1	-0.5	399	22	10:22

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

All the nearest cities on our list plant zucchini later than Juneau; the closest date is in Victoria, 10 days later.

City	Distance	Date	Difference
Whitehorse	272 km	9 July – 12 July	36 days later
Anchorage	923 km	7 July – 28 July	34 days later
Fairbanks	1,008 km	19 June – 7 July	16 days later
Yellowknife	1,189 km	30 June – 18 July	27 days later
Vancouver	1,244 km	22 June – 31 August	19 days later
Victoria	1,316 km	13 June – 4 October	10 days later

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions