Frost dates / Florida / Clearwater

Frost dates in Clearwater, FL

The station on this page is ST PETERSBURG INTL AP, FL US (USW00012873), 7 miles from the city point. Population in the Census 2024 estimate is 116,811.

Zone 10aUSDA average annual extreme minimum 30°F to 35°F, from ZIP 33755 (0.7 miles from the city point used on this page).

Median last 32°F is January 17. Median first 32°F is January 14. The 50% growing-season length is 365 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

Probability	Date	How to read it
90%	January 1	Earlier date. A last 32°F on or after this day is common.
50%	January 17	Median.
10%	February 6	Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

Probability	Date	How to read it
10%	December 27	Earlier date. A first 32°F on or before this day is uncommon.
50%	January 14	Median.
90%	February 4	Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this long	Days
10%	365
50%	365
90%	345

36°F threshold

	10%	50%	90%
Last, on or after	February 17	January 23	January 1
First, on or before	December 22	January 12	February 6
Season at least	365 days	353 days	318 days

Station ST PETERSBURG INTL AP, FL US (USW00012873). Completeness flag R, 17 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 23.3%. Freeze dates are conditional on that threshold occurring. Elevation 3.4 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Planting calendar for Clearwater · Zone 10a

Check a crop against this station

Clearwater, FL

Zone 10aAverage annual extreme minimum 30°F to 35°F

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Florida. Nearest qualified station: ST PETERSBURG INTL AP, FL US (USW00012873), 7 miles. Median last 32°F January 17. Median first 32°F January 14. The 50% growing-season length is 365 days.

Open the ZIP page · Crop guides for Florida

32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	February 6	January 17	January 1
First 32°F on or before	December 27	January 14	February 4

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from UF/IFAS, Florida Vegetable Gardening Guide (SP 103/VH021), retrieved 2026-10-10. North = all of Florida north of State Road 40; central = the section of Florida between State Roads 40 and 70; south = all of Florida below State Road 70.

Crop

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