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Surprise, AZ planting calendar

When to plant vegetables in Surprise, AZ (USDA hardiness zone 9b). Typical last spring frost around Jan 20, 2026 (±22 days year to year), first fall frost around Dec 15, 2026 (±16 days).

Playing it safe? Spring frost holds off until about Feb 17, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

These dates are typical for the whole city. Enter your ZIP for frost dates from the station nearest you:

Still time to plant

As of today, these crops can still reach harvest before Surprise, AZ’s first frost (~Dec 15, 2026) — fastest first.

Month by month in Surprise, AZ

January

February

March

October

November

December

Understand your frost dates

More Arizona planting calendars

ZIP codes in Surprise

85374, 85378, 85379, 85387, 85388

Where these dates come from

Frost dates for Surprise, AZare NOAA 1991–2020 climate normals from a station representative of the area, which covers 5 ZIP codes. Individual ZIP codes within it can run earlier or later.

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