Late summer rain boosts Wheatbelt averages, warm autumn predicted

The summer of 2019/20 has shaped up to be among the three warmest on record for WA.

Despite the near record breaking highs, WA had a wetter than average summer for large parts of the state including the Pilbara, east Gascoyne, and interior due to cyclones Blake and Damien.

The region missed a lot of the rain with the Avon Valley hub of Northam only recording 1.3ml over December and January, but after a late start the town overtaking the February rainfall average of 4.2ml, recording 35.5ml.

For the autumn ahead, the Bureau of Meteorology is expecting to see above average night-time temperatures across the state and a high chance of warmer than average day-time temperatures in the north.

Wetter than average conditions are expected in southern parts of the state, and drier than average conditions in the north of WA.

Bureau climatologist Dr Andrew Watkins said it was important that people understood autumn was historically a time of year when main climate drivers could change from one state to another.

"Typically, in autumn our main climate drivers are resetting, which means they're exerting less influence on our weather patterns.

"This means we can expect our weather over the coming month or two to be driven by more local conditions, and that makes the seven-day forecast an important tool for assessing upcoming rainfall.

"All international models analysed by the Bureau are currently showing our climate drivers in the Pacific or Indian Ocean remaining neutral in the coming months.

"By winter, we will have an even clearer indication if this will change, and hence what the weather will look like for the rest of 2020."