Storage life varies by squash type. Acorn Squash stores the shortest amount of time: 4 weeks. Spaghetti stores four to five weeks; Butternut 13 weeks; Butternut, up to six months; Blue Hubbard six to seven months.
You’ll see best storage results when you stash squash in a cool, dry spot. For most winter squash, store at 50º to 55º F with relative humidity of 60 to 70 percent. The one exception, again, is Acorn Squash, which should be kept at temperatures less than 55.
For more information on storing winter squash, visit BonniePlants.com.