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Frost Dates for Hartlepool, County Durham, United Kingdom

Coordinates: 54.685, -1.218

Growing Season

The last spring air frost in Hartlepool, County Durham, United Kingdom typically occurs around May 10, and the first autumn air frost around Oct 15. This gives a frost-free growing season of approximately 158 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 2°C (36°F). The warmest month is July, with an average high of 19°C (66°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 10 (last spring) to Oct 15 (first autumn). Light ground frost (-1°C / 30°F): Apr 21 (last spring) to Nov 5 (first autumn). Hard ground frost (-2°C / 28°F): Feb 2 (last spring) to Dec 21 (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 May 10 to Oct 15, which provides approximately 157 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 21 to Nov 5, which provides a total of 198 days for growing.

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