Frost Dates for Hamm, Nordrhein-Westfalen, Germany

Coordinates: 51.683, 7.800

Growing Season

The last spring air frost in Hamm, Nordrhein-Westfalen, Germany typically occurs around May 17, and the first autumn air frost around Sep 22. This gives a frost-free growing season of approximately 128 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 7b, where the average annual extreme minimum temperature is -15 to -12.2°C (5 to 10°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 0°C (32°F). The warmest month is August, with an average high of 24°C (75°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 17 (last spring) to Sep 22 (first autumn). Light ground frost (-1°C / 30°F): May 3 (last spring) to Oct 8 (first autumn). Hard ground frost (-2°C / 28°F): Apr 9 (last spring) to Nov 1 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 7b

... 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 17 to Sep 22, which provides approximately 127 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 May 3 to Oct 8, which provides a total of 158 days for growing.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec