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When to plant in Clearwater, FL

USDA Zone 10a

Everything below — frost dates, hardiness zone, and what to plant when in Clearwater, Florida — is derived from the closest NOAA station with complete climate normals.

Clearwater's growing season is short at roughly -3 days, so succession planting is limited; lean on transplants over direct sowing for anything slow to mature. In zone 10a, frost is a minor factor for Clearwater — most perennials thrive, and annual vegetables can go out early and stay late.

Station · ST PETERSBURG INTL AP · 11.2 km
Last spring frost
January 17
50% chance · 32°F
First fall frost
January 14
50% chance · 32°F
Growing season
-3 days
frost-free
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Frost calendar for ClearwaterA year-band from January to December for Clearwater: Clearwater is effectively frost-free at 32°F — no distinct frost season.
Clearwater is effectively frost-free at 32°F — no distinct frost season.

The average first fall frost in Clearwater is now 7 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →

Frost probability

ST PETERSBURG INTL AP · 1991–2020

The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Clearwater’s own odds, recorded at ST PETERSBURG INTL AP.

Frost-probability curves for ClearwaterProbability of the last spring frost and first fall frost by date at 32°F. The last spring frost is most likely around January 17 and the first fall frost around January 14, where a 32°F freeze is rare enough that there is effectively no distinct frost season.
Last spring frostFirst fall frostbold = 32°F · thin = 28°F / 36°F · dot = 50% date · band = 10–90% window
ThresholdSPRING 10%SPRING 50%SPRING 90%FALL 10%FALL 50%FALL 90%
36°FFeb 17Jan 23Jan 1Dec 22Jan 12Feb 6
32°FFeb 6Jan 17Jan 1Dec 27Jan 14Feb 4

Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.

What to plant now

TODAY · JULY 19

Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.

Add the next planting windows to your calendar (.ics) ↓

Full-year planting calendar

Start indoorsTransplantDirect sowFall sow

Each bar is the exact window to take a planting action in Clearwater, drawn to the day from the local frost dates. The dashed line is today.

Nearby weather stations

3 within 23 km · complete 32°F normals

When stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.

ST PETERSBURG INTL AP
Primary
11 km · 3 m elevation
SPRING
Jan 17
FALL
Jan 14
TARPON SPGS SEWAGE PLT
19 km · 2 m elevation
SPRING
Jan 20
FALL
Jan 9
TAMPA INTL AP
23 km · 6 m elevation
SPRING
Jan 20
FALL
Jan 12

Clearwater planting FAQ

When is the last spring frost in Clearwater, FL?

On average, the last spring frost in Clearwater is around January 17 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.

When is the first fall frost in Clearwater, FL?

In Clearwater, the first 32°F freeze of fall lands around January 14 on average. Time your last harvests and any season-extension cover before it.

What hardiness zone is Clearwater in?

Clearwater is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.

How long is the growing season in Clearwater?

Clearwater has about -3 frost-free days — a short growing season — between the average last spring frost (January 17) and first fall frost (January 14).

When should I plant tomatoes in Clearwater?

For Clearwater, sow tomatoes indoors about November 22–December 6 and move the seedlings out around January 24, after the last spring frost.

Planting reminders

Never miss a window in Clearwater

An email when it’s time to start seeds, transplant, and sow — timed to Clearwater’s frost dates. Double opt-in, one-click unsubscribe, no spam.

Nearby cities

8 within reach

Frost dates recorded at ST PETERSBURG INTL AP, 11 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.

Cite this page
BlissGarden. "When to Plant in Clearwater, FL — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012873. Retrieved from https://blissgarden.com/florida/clearwater.