What is Asset Seasonality?

It is the historical performance of an asset during a period of time.

For example, $AAPL has gone up 61% of all Junes and 60% of all July's since 1984. 

But in September, it only goes up 37% of the time.

Would you buy $AAPL on August 31st? https://t.co/I69NVqPbX9