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Frost Dates for Saginaw, Michigan, United States of America

Coordinates: 43.419, -83.951

Growing Season

The last spring air frost in Saginaw, Michigan, United States of America typically occurs around May 6, and the first autumn air frost around Sep 16. This gives a frost-free growing season of approximately 133 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 5b, where the average annual extreme minimum temperature is -26.1 to -23.3°C (-15 to -10°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 -8°C (18°F). The warmest month is July, with an average high of 27°C (81°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 6 (last spring) to Sep 16 (first autumn). Light ground frost (-1°C / 30°F): Apr 27 (last spring) to Sep 27 (first autumn). Hard ground frost (-2°C / 28°F): Apr 13 (last spring) to Oct 12 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 5b

... 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 May 6 to Sep 16, which provides approximately 132 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 27 to Sep 27, which provides a total of 153 days for growing.

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