National Acorn Squash Day

National Acorn Squash Day on September 7 is an early-fall produce date for roasting acorn squash. It is informal produce-calendar fare.

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About National Acorn Squash Day

History & origins

September 7 is listed as National Acorn Squash Day. Origin is undocumented. Winter squash starts showing up as nights cool, even when the calendar still feels like summer.

Why it matters

The date is a single squash variety, not a generic harvest festival.

How to celebrate

Halve an acorn squash, roast it, and season with salt, butter, or a little maple if you like.

Facts

Acorn squash is a winter squash despite the early-September date
The food day is unofficial
Labor Day coincidence in 2026 does not merge the observances

Upcoming dates

Monday, September 7, 2026
Tuesday, September 7, 2027
Thursday, September 7, 2028
Friday, September 7, 2029
Saturday, September 7, 2030

Frequently asked questions

When is National Acorn Squash Day in 2026?

National Acorn Squash Day in 2026 falls on Monday, September 7, 2026.

What is acorn squash?

A small, ridged winter squash.

Who started the day?

No verified founder is documented.

How do you celebrate?

Roast acorn squash.

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