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Upper Lake, CA planting calendar

When to plant vegetables in Upper Lake, CA (USDA hardiness zone 9a). Typical last spring frost around Mar 5, 2026 27 days year to year), first fall frost around Nov 21, 202614 days).

Playing it safe? Spring frost holds off until about Apr 8, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable Upper Lake calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Upper Lake, CA’s first frost (~Nov 21, 2026) — fastest first.

Month by month in Upper Lake, CA

January

February

March

April

September

December

Understand your frost dates

More California planting calendars

ZIP codes in Upper Lake

95485

Frost dates are NOAA 1991–2020 climate normals for a representative location in Upper Lake, CA (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.