Frost Dates for Uppsala, Uppsala Lan, Sweden

Coordinates: 59.850, 17.633

Growing Season

The last spring air frost in Uppsala, Uppsala Lan, Sweden typically occurs around May 24, and the first autumn air frost around Sep 6. This gives a frost-free growing season of approximately 105 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 7a, where the average annual extreme minimum temperature is -17.8 to -15°C (0 to 5°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 -5°C (23°F). The warmest month is July, with an average high of 22°C (72°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 24 (last spring) to Sep 6 (first autumn). Light ground frost (-1°C / 30°F): May 13 (last spring) to Sep 20 (first autumn). Hard ground frost (-2°C / 28°F): Apr 23 (last spring) to Oct 19 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone: USDA Growing Zone - 7a

... and the frost data for your area is ...

Current Risk Level: Hard Ground Frost possible

for today based on past data only.

We predict a frost free growing season at your location from May 24 to Sep 6, which provides approximately 104 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 13 to Sep 20, which provides a total of 130 days for growing.

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