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Frost Dates for Wilmington, North Carolina, United States of America

Coordinates: 34.226, -77.945

Growing Season

The last spring air frost in Wilmington, North Carolina, United States of America typically occurs around Mar 12, and the first autumn air frost around Oct 28. This gives a frost-free growing season of approximately 230 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 8a, where the average annual extreme minimum temperature is -12.2 to -9.4°C (10 to 15°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 5°C (41°F). The warmest month is July, with an average high of 31°C (88°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Mar 12 (last spring) to Oct 28 (first autumn). Light ground frost (-1°C / 30°F): Feb 27 (last spring) to Nov 13 (first autumn). Hard ground frost (-2°C / 28°F): Feb 1 (last spring) to Dec 14 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 8a

... 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 Mar 12 to Oct 28, which provides approximately 229 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 Feb 27 to Nov 13, which provides a total of 259 days for growing.

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