Frost Dates for Chilliwack, British Columbia, Canada

Coordinates: 49.167, -121.950

Growing Season

The last spring air frost in Chilliwack, British Columbia, Canada typically occurs around Jun 7, and the first autumn air frost around Sep 3. This gives a frost-free growing season of approximately 88 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 -2°C (28°F). The warmest month is August, with an average high of 24°C (75°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Jun 7 (last spring) to Sep 3 (first autumn). Light ground frost (-1°C / 30°F): May 17 (last spring) to Sep 20 (first autumn). Hard ground frost (-2°C / 28°F): Apr 14 (last spring) to Oct 20 (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 7 to Sep 3, which provides approximately 87 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 17 to Sep 20, which provides a total of 126 days for growing.

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