Frost Dates for Hobart, Tasmania, Australia

Coordinates: -42.917, 147.333

Growing Season

The last spring air frost in Hobart, Tasmania, Australia typically occurs around Nov 12, and the first autumn air frost around Apr 7. This gives a frost-free growing season of approximately -219 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 August, with an average low of 4°C (39°F). The warmest month is January, with an average high of 22°C (72°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): Nov 12 (last spring) to Apr 7 (first autumn). Light ground frost (-1°C / 30°F): Oct 14 (last spring) to May 9 (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 Nov 12 to Apr 7, which provides approximately 145 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 Oct 14 to May 9, which provides a total of 207 days for growing.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Light Ground Frost possible
Air Frost possible
Safest (unlikely)

First and last frost dates by frost type
	First	Last
Air Frost	Apr 7	Nov 12
Light Ground Frost	May 9	Oct 14
Hard Ground Frost	Unlikely	Unlikely

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Frost Dates for Hobart, Tasmania, Australia

Growing Season

USDA Hardiness Zone

Temperature Overview

Frost Risk Breakdown