Frost Dates for Coquitlam, British Columbia, Canada

Coordinates: 49.267, -122.783

Growing Season

The last spring air frost in Coquitlam, British Columbia, Canada typically occurs around May 2, and the first autumn air frost around Sep 30. This gives a frost-free growing season of approximately 151 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 8a, where the average annual extreme minimum temperature is -12.2 to -9.4°C (10 to 15°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 August, with an average high of 22°C (72°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 2 (last spring) to Sep 30 (first autumn). Light ground frost (-1°C / 30°F): Apr 16 (last spring) to Oct 15 (first autumn). Hard ground frost (-2°C / 28°F): Mar 13 (last spring) to Nov 9 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 8a

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

Current Risk Level: Air Frost possible

for today based on past data only.

We predict a frost free growing season at your location from May 2 to Sep 30, which provides approximately 150 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 16 to Oct 15, which provides a total of 182 days for growing.

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