Stats on Seasonality in Austin?

[Ethan Anderson]

I'm in the Bay Area, and looking to educate myself about buy and hold opportunities in Austin -- where I have family.

Can I ask how investors can get clean historical data on Austin's real estate market? I'm mainly trying to get a sense of seasonality. Is data on metrics like sales volume, or $/sq ft, by month and year readily available? If so, how granular does that data get. Can you slice by the ZIP and property type?

Thanks for any guidance you can share with a newbie!

Ethan