Frost Dates for Rome, Lazio, Italy

Coordinates: 41.900, 12.483

Growing Season

The last spring air frost in Rome, Lazio, Italy typically occurs around Apr 5, and the first autumn air frost around Nov 11. This gives a frost-free growing season of approximately 220 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 5°C (41°F). The warmest month is August, with an average high of 32°C (90°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Apr 5 (last spring) to Nov 11 (first autumn). Light ground frost (-1°C / 30°F): Mar 12 (last spring) to Nov 25 (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 Apr 5 to Nov 11, which provides approximately 219 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 Mar 12 to Nov 25, which provides a total of 258 days for growing.

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