Frost Dates for Yokohama, Kanagawa, Japan

Coordinates: 35.448, 139.643

Growing Season

The last spring air frost in Yokohama, Kanagawa, Japan typically occurs around Mar 8, and the first autumn air frost around Nov 24. This gives a frost-free growing season of approximately 261 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 August, with an average high of 30°C (86°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Mar 8 (last spring) to Nov 24 (first autumn). Light ground frost (-1°C / 30°F): Feb 18 (last spring) to Dec 7 (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 Mar 8 to Nov 24, which provides approximately 260 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 Feb 18 to Dec 7, which provides a total of 292 days for growing.

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