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Frost Dates for Medford, Oregon, United States of America

Coordinates: 42.327, -122.874

Growing Season

The last spring air frost in Medford, Oregon, United States of America typically occurs around Jun 15, and the first autumn air frost around Aug 23. This gives a frost-free growing season of approximately 69 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 7b, where the average annual extreme minimum temperature is -15 to -12.2°C (5 to 10°F). This zone rating helps gardeners determine which perennial plants are likely to survive winter.

Temperature Overview

The coldest month is February, with an average low of 0°C (32°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): Jun 15 (last spring) to Aug 23 (first autumn). Light ground frost (-1°C / 30°F): May 29 (last spring) to Sep 12 (first autumn). Hard ground frost (-2°C / 28°F): Apr 25 (last spring) to Oct 13 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 7b

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

Current Risk Level: Hard Ground Frost possible

for today based on past data only.

We predict a frost free growing season at your location from Jun 15 to Aug 23, which provides approximately 68 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 May 29 to Sep 12, which provides a total of 106 days for growing.

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