frostdates.com

Turbo charge your gardening, homesteading and horticultural powers with our international frost date and growing zone calculator

Frost Dates for Jacksonville, Florida, United States of America

Coordinates: 30.332, -81.656

Growing Season

The last spring air frost in Jacksonville, Florida, United States of America typically occurs around Feb 21, and the first autumn air frost around Nov 24. This gives a frost-free growing season of approximately 277 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 8b, where the average annual extreme minimum temperature is -9.4 to -6.7°C (15 to 20°F). This zone rating helps gardeners determine which perennial plants are likely to survive winter.

Temperature Overview

The coldest month is January, with an average low of 9°C (48°F). The warmest month is July, with an average high of 33°C (91°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Feb 21 (last spring) to Nov 24 (first autumn). Light ground frost (-1°C / 30°F): Jan 31 (last spring) to Dec 9 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 8b

... and the frost data for your area is ...

Current Risk Level: Unlikely (Safest)

for today based on past data only.

We predict a frost free growing season at your location from Feb 21 to Nov 24, which provides approximately 275 frost free days.

For the less tender plants, or if you are planning to protect your plants with fleece etc, your growing season could stretch from Jan 31 to Dec 9, which provides a total of 312 days for growing.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec