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Planting calendar for ZIP 53146 (New Berlin, WI)

When to plant vegetables in New Berlin, WI (USDA hardiness zone 5b). Typical last spring frost around May 1, 2027 (±12 days year to year), first fall frost around Oct 13, 2027 (±10 days).

Playing it safe? Spring frost holds off until about May 16, 2027 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full New Berlin, WI planting calendar for dates typical of the whole city.

Turn these dates into a plan: lay out your beds, place each crop on its sow and transplant dates, and get a reminder when it’s time. Free on one garden, no credit card.

Plan my garden for 53146

Month by month in New Berlin, WI

January

February

March

April

May

August

Understand your frost dates

Where these dates come from

Frost dates for ZIP 53146 come from NOAA 1991-2020 normals (USC00478937 WAUKESHA WWTP, WI US). You can look up that station’s record yourself.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.