Frost Dates for Chelmsford, Essex, United Kingdom

Coordinates: 51.731, 0.468

Growing Season

The last spring air frost in Chelmsford, Essex, United Kingdom typically occurs around May 14, and the first autumn air frost around Oct 15. This gives a frost-free growing season of approximately 154 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 2°C (36°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 14 (last spring) to Oct 15 (first autumn). Light ground frost (-1°C / 30°F): Apr 27 (last spring) to Oct 30 (first autumn). Hard ground frost (-2°C / 28°F): Mar 19 (last spring) to Dec 9 (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 14 to Oct 15, which provides approximately 153 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 Oct 30, which provides a total of 186 days for growing.

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