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Frost Dates for Carmichael, California, United States of America

Coordinates: 38.617, -121.327

Growing Season

The last spring air frost in Carmichael, California, United States of America typically occurs around Apr 19, and the first autumn air frost around Oct 22. This gives a frost-free growing season of approximately 186 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 9a, where the average annual extreme minimum temperature is -6.7 to -3.9°C (20 to 25°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 36°C (97°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Apr 19 (last spring) to Oct 22 (first autumn). Light ground frost (-1°C / 30°F): Mar 14 (last spring) to Nov 12 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 9a

... 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 Apr 19 to Oct 22, which provides approximately 185 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 Mar 14 to Nov 12, which provides a total of 243 days for growing.

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