Frost Dates for Colchester, Essex, United Kingdom

Coordinates: 51.892, 0.898

Growing Season

The last spring air frost in Colchester, Essex, United Kingdom typically occurs around May 5, and the first autumn air frost around Oct 23. This gives a frost-free growing season of approximately 171 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 8b, where the average annual extreme minimum temperature is -9.4 to -6.7°C (15 to 20°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 3°C (37°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 5 (last spring) to Oct 23 (first autumn). Light ground frost (-1°C / 30°F): Apr 15 (last spring) to Nov 12 (first autumn). Hard ground frost (-2°C / 28°F): Jan 25 (last spring) to Dec 22 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 8b

... 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 May 5 to Oct 23, which provides approximately 170 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 15 to Nov 12, which provides a total of 211 days for growing.

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