Greenly Garden

Frost dates and when to plant in New South Wales

Australia

In New South Wales the last spring frost comes between 29 July (Dubbo) and 28 August (Albury) — the median of 2016–2025 in 3 cities. The first autumn frost comes between 13 June (Orange) and 20 June (Albury). The frost-free season lasts 293–325 days. 3 of the 6 cities had no frost at all. Tomato: plant out into open ground 21 September – 28 February, earliest in Dubbo, latest in Albury.

Frost dates by city in New South Wales

CityLast spring frostFirst autumn frostFrost-free daysClimate zoneTomato: window
Dubbo29 July19 June325270 frost-free days or more21 September – 27 February
Orange24 August13 June293270 frost-free days or more20 October – 21 February
Albury28 August20 June296270 frost-free days or more16 October – 28 February
Newcastlenone in ten yearsnone in ten years—No frost in ten years—
Sydneynone in ten yearsnone in ten years—No frost in ten years—
Wollongongnone in ten yearsnone in ten years—No frost in ten years—

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When to plant in New South Wales: windows by crop

The earliest start and the latest end among the cities here, each with its city; every city’s own window is on its page. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

CropPlanting out or sowing
Tomato21 September (Dubbo) – 28 February (Albury)
Cucumber10 October (Dubbo) – 4 April (Albury)
Bell Pepper, Eggplant10 October (Dubbo) – 28 February (Albury)
Zucchini10 October (Dubbo) – 2 April (Albury)
Pumpkin10 October (Dubbo) – 23 February (Albury)
Watermelon10 October (Dubbo) – 10 March (Albury)
Peas8 July (Dubbo) – 6 April (Albury)
GarlicAutumn planting: 1 March (Sydney) – end of June (Orange)
Tulip, Daffodil, Crocus, HyacinthAutumn planting: by 14 May (Orange)

Weather by month in New South Wales

Across the 6 cities the warmest month is January (average days 26.4 … 33 °C) and the coldest July (average nights 3.6 … 9.9 °C). No city here averages below 0 °C at night in any month.

MonthDay, °CNight, °CRain, mm
January26.4 … 33 °C16.6 … 20.9 °C84
February25.7 … 31.3 °C15.2 … 20.7 °C74
March23.8 … 28.7 °C13.8 … 19.6 °C113
April19.2 … 23.8 °C10.1 … 16.4 °C71
May14.3 … 20 °C6.6 … 13 °C69
June10.9 … 17.2 °C4.1 … 10.5 °C77
July10.5 … 17.4 °C3.6 … 9.9 °C69
August11.9 … 18.5 °C3.8 … 10.4 °C69
September15.4 … 21.6 °C6.2 … 12.8 °C62
October19 … 24.2 °C9.1 … 15.3 °C84
November22 … 27.4 °C11.4 … 17.2 °C85
December25.6 … 30.9 °C14.1 … 19.2 °C70

Day and night: the lowest … highest monthly average among the cities; rain: the middle city (ERA5 via Open-Meteo).

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