Frost Dates for Cologne, Nordrhein-Westfalen, Germany

Coordinates: 50.933, 6.950

Growing Season

The last spring air frost in Cologne, Nordrhein-Westfalen, Germany typically occurs around May 11, and the first autumn air frost around Sep 26. This gives a frost-free growing season of approximately 138 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 January, with an average low of 1°C (34°F). The warmest month is August, with an average high of 25°C (77°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 11 (last spring) to Sep 26 (first autumn). Light ground frost (-1°C / 30°F): Apr 28 (last spring) to Oct 12 (first autumn). Hard ground frost (-2°C / 28°F): Apr 1 (last spring) to Nov 8 (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: Light Ground Frost possible

for today based on past data only.

We predict a frost free growing season at your location from May 11 to Sep 26, which provides approximately 137 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 28 to Oct 12, which provides a total of 167 days for growing.

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