Frost Dates for Dublin, Dublin, Ireland

Coordinates: 53.333, -6.249

Growing Season

The last spring air frost in Dublin, Dublin, Ireland typically occurs around Apr 24, and the first autumn air frost around Oct 26. This gives a frost-free growing season of approximately 185 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 4°C (39°F). The warmest month is July, with an average high of 18°C (64°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Apr 24 (last spring) to Oct 26 (first autumn). Light ground frost (-1°C / 30°F): Apr 4 (last spring) to Nov 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: Air Frost possible

for today based on past data only.

We predict a frost free growing season at your location from Apr 24 to Oct 26, which provides approximately 184 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 4 to Nov 21, which provides a total of 231 days for growing.

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