When Is Summer Squash in Season?
Summer Squash season by U.S. region
| Region | Typical window | Source |
|---|---|---|
| Georgia | May–November | UGA Extension |
| Florida | Harvest begins mid-October, through winter into spring | USDA NASS |
| Texas / South-Central | Summer + fall | ACL regional list |
| California | March–May, August–September | UC ANR |
| Northeast | Summer + fall | ACL regional list |
| Midwest (Great Lakes) | Summer + fall | ACL regional list |
| Pacific Northwest | Summer | ACL regional list |
Where a source publishes only season-level timing ("summer + fall"), we show exactly that — regional month precision exists only where an extension calendar provides it. Weather moves every window; your market's growers are the final word.
How the season moves across the country
Georgia's May–November run and Florida's fall-through-spring harvest mean squash is on a southern table most of the year; the North compresses into the standard summer window with the same July–August national peak. California's calendar splits into spring (March–May) and late-summer (August–September) pulses.
The national peak for summer squash — like every warm-season market crop — is July–August. See what's in season right now for the current month's full national list, or your state's harvest calendar for local timing.
How to pick summer squash at the market
Small and shiny, per Texas A&M: small size plus glossy skin is the tenderness signal, and the giant baseball-bat zucchini every gardener grows by accident is exactly what you don't want. Purdue adds the freshness check — firm and crisp, never limp.
Storing summer squash once you're home
Perforated plastic bags in the fridge, used within 1–3 days, out of direct sunlight (University of Tennessee Extension + Purdue). Summer squash is highly chilling-sensitive below 45–55°F over longer holds (commercially stored at 50°F) and highly ethylene-sensitive — keep it away from tomatoes, peaches, and cantaloupe. Rinse before prepping.
The storage science, in four rules
- Warm-season vegetables have a chilling-injury danger zone of 45–55°F — cucumbers and summer squash are highly sensitive; snap beans, muskmelon, and tomatoes moderately so (University of Tennessee Extension).
- Commercial growers use a two-cooler rule: 32°F for sweet corn and ripe muskmelon; 50°F for green beans, cucumbers, summer squash, ripe tomatoes, and watermelon.
- Cantaloupe, peaches, and tomatoes produce ethylene as they ripen; snap beans, cucumbers, and summer squash are damaged by it — store the two groups apart.
- Cut, peeled, or cooked produce must be refrigerated within 2 hours, and melon rinds should be rinsed before cutting so the knife doesn't carry surface bacteria into the flesh (USDA NIFA).
Frequently asked questions
When is summer squash in season?
July–August is the national peak. Georgia's window is huge — May through November — while the Northeast, Midwest, and Northwest run through summer. Florida harvests from mid-October through winter into spring.
What size zucchini should I buy?
Small. Texas A&M's guide calls for small, shiny squash — that combination means tender flesh and thin skin. Oversized squash are watery, seedy, and tough; they're for zucchini bread, not the sauté pan.
How long does summer squash keep?
1–3 days in a perforated bag in the fridge for best quality. It's chilling-sensitive below 45–55°F over longer storage and damaged by ethylene from tomatoes, peaches, and melons — store apart (University of Tennessee Extension).
Where to buy summer squash in season
The freshest route is direct: find a farmers market near you, browse farm stands and u-pick farms by state, or search by ZIP with the market finder. In-season, direct-from-farm summer squash were usually picked within a day of the table.
Know what's in season before you shop
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→ What's in season right now · Month-by-month calendar · Season Finder tool
More produce guides: Tomatoes · Sweet Corn · Watermelon · Peaches · Cantaloupe · Cucumbers · Green Beans
Unusual finds at the market: Pawpaw · Ground Cherry · Purslane
Sources
- UGA Extension — Georgia's Month-by-Month Produce Guide
- UC ANR — California Harvest Calendar
- Administration for Community Living — Seasonal Produce Chart by Region
- Texas A&M AgriLife Extension — A Guide to Picking Produce
- Purdue Extension — Shopping Tips for Indiana Farmers' Markets
- University of Tennessee Extension — Postharvest Handling (Getting the Most Out of Your Crops)
- USDA NIFA — Guide to Washing Fresh Produce
Harvest windows are typical ranges from state Cooperative Extension calendars and USDA regional sources — not forecasts. Weather shifts every season by weeks; confirm locally at your market.