When to plant Watermelon in Alaska

In spring, from May 15 – June 15 in Juneau to June 15 – July 1 in Wasilla.

In fall, from May 1 – June 15 in Anchorage to June 1 – 15 in Juneau.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Watermelon planting dates by place in Alaska
PlaceSpringFall
AnchorageJune 15 – July 1May 1 – June 15
FairbanksJune 15 – July 1Not listed
JuneauMay 15 – June 15June 1 – 15
WasillaJune 15 – July 1May 1 – June 15

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for watermelon.