Monday, 3 June 2019 - Seasonal Climate Summary for Greater Sydney - Product code IDCKGC25L0

Greater Sydney in autumn 2019: warm days and near-average rainfall

Daytime temperatures during autumn were very much warmer than average in most areas of Greater Sydney, while overnight temperatures were not as extreme, but still warmer than average in most locations. Rainfall was close to average across Greater Sydney.

Very warm autumn across Greater Sydney

• Autumn 2019 was very warm in terms of maximum temperatures, with most locations recording more than a degree above average
• The warmest day of autumn across Greater Sydney was 6 March, with nearly all locations reaching the mid to high 30s, including Sydney (Observatory Hill) with 35.6 °C
• A cold outbreak in the last few days of autumn saw some western sites experience their coldest autumn temperature on record
• Norah Head AWS recorded a warm autumn and record highest mean daily maximum, and mean temperatures

Near-average rainfall

• Rainfall across Greater Sydney ranged from 50% of average at Springwood (Valley Heights) to 110% of average at Horsley Park Equestrian Centre
• Autumn began wet with some heavy falls during March, while April and May were drier than average; overall autumn rainfall was close to average at most sites in Greater Sydney
• The wettest days of autumn occurred between the 15 and 18 March due to a low pressure system generating heavy falls

Sydney (Observatory Hill)

• Total rainfall for Sydney (Observatory Hill) was 255.0 mm, which is 68% of the long-term average of 375.9 mm
• Sydney (Observatory Hill) experienced rain on 26 days, compared to the autumn average of 39 days
• The mean daily maximum temperature for Sydney (Observatory Hill) was 24.7 °C, which is 2.4 °C above the long-term average of 22.3 °C. The warmest day was 35.6 °C on 6 Mar, and the coolest day was on 30 May when the temperature reached 17.4 °C
• The mean daily minimum temperature for Sydney (Observatory Hill) was 16.0 °C, which is 1.4 °C above the long-term average of 14.6 °C. The coldest morning was 7.8 °C on 31 May, and the warmest morning was on 6 Mar when the minimum temperature was 22.2 °C

Severe thunderstorms and fog

• On the evening of the 14 March, a severe thunderstorm produced giant hail, flash flooding and heavy falls across Greater Sydney
• Thick fog over Greater Sydney on the morning of 3 April caused delays at Sydney Airport

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top