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Frost Dates for Kettering, Ohio, United States of America

Coordinates: 39.689, -84.169

Growing Season

The last spring air frost in Kettering, Ohio, United States of America typically occurs around Apr 19, and the first autumn air frost around Sep 24. This gives a frost-free growing season of approximately 158 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 6a, where the average annual extreme minimum temperature is -23.3 to -20.6°C (-10 to -5°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 -6°C (21°F). The warmest month is July, with an average high of 28°C (82°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Apr 19 (last spring) to Sep 24 (first autumn). Light ground frost (-1°C / 30°F): Apr 10 (last spring) to Oct 3 (first autumn). Hard ground frost (-2°C / 28°F): Mar 24 (last spring) to Oct 18 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 6a

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

Current Risk Level: Light Ground Frost possible

for today based on past data only.

We predict a frost free growing season at your location from Apr 19 to Sep 24, which provides approximately 157 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 Apr 10 to Oct 3, which provides a total of 176 days for growing.

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