Thursday, 1 September 2011 - Seasonal Climate Summary for Melbourne Metropolitan Area and Environs - Product code IDCKGC1xx0

Melbourne Metropolitan Area in winter 2011: Warm and dry

• Rainfall totals below average
• Average daytime temperatures very much warmer than usual
• Average minimum temperatures close to normal.

Extremes Maps Records Summaries Important notes the top

Rainfall

Rainfall totals around Melbourne where below average during winter. Both the Essendon and Melbourne Airport stations recorded half their long-term average rainfall. To the north, Melbourne Airport observed 33 rain days this winter whilst in the south-east, Cranbourne Botanic Gardens recorded almost twice as many with 64. The wettest station overall was Coldstream with 198.2 mm whilst the driest overall was Melbourne Airport with 58.0 mm. Melbourne Airport had their lowest total winter rainfall on record. The largest single day total was 21.4 mm recorded at Ferny Creek (Dunns Hill) on the 8th of June and then again on the 7th of July. There is a map of rainfall deciles below.

Temperature

Maximum temperature

Average maximum temperatures were warmer than usual this winter. Stations recorded average daytime temperatures that were generally 0.5 °C to 1.5 °C warmer than normal. The hottest day was the 3rd of August when Avalon Airport recorded 23.3 °C. The warmest days on average were recorded at Melbourne Regional Office with 15.9 °C and the coolest days on average were recorded at Cranbourne Botanic Gardens with 14.5 °C. The coldest day was the 7th of July when Ferny Creek (Dunns Hill) recorded 4.6 °C. Some sites had their highest winter mean daily maximum temperature on record. There is a map of maximum temperature anomalies below.

Minimum temperature

Average minimum temperatures were generally close to normal this winter. Most stations reported averages that were within 0.5 °C of their long-term means. The exceptions were the Melbourne Regional Office and Essendon Airport whose average night-time temperatures were very much above average. The coldest minimum temperature was -2.1 °C recorded at Coldstream on the 16th of June and Avalon Airport on the 16th of July. The coolest nights on average were at Coldstream with 4.2 °C and the warmest nights on average were at Melbourne Regional Office with 8.2 °C. The warmest night was the 4th of August when Scoresby Research Institute recorded 15.8 °C. Some sites had their warmest winter night (highest daily minimum temperature) on record. There is a map of minimum temperature anomalies below.

Extremes Maps Records Summaries Important notes the top

Maps

Anomaly in mean maximum temperature

Anomaly in mean minimum temperature

Rainfall deciles

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top