Frost Dates for Toowoomba, Queensland, Australia

Coordinates: -27.550, 151.967

Growing Season

The last spring air frost in Toowoomba, Queensland, Australia typically occurs around Sep 10, and the first autumn air frost around May 5. This gives a frost-free growing season of approximately -128 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 July, with an average low of 6°C (43°F). The warmest month is January, with an average high of 29°C (84°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Sep 10 (last spring) to May 5 (first autumn). Light ground frost (-1°C / 30°F): Aug 15 (last spring) to Jun 1 (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 Sep 10 to May 5, which provides approximately 236 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 Aug 15 to Jun 1, which provides a total of 290 days for growing.

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