Looking over the uncontextualized data, price has a good behaviour on only one out of the past four Decembers, being December 2020 structural the path to the subsequent 2021 ATH:
Neverthless, I get the feeling that looking over the past monthly aggregate data does not really point to future trends for a given month, and that were much more prone to sway in price in terms of the large fundamentals that occur, which are mostly unpredictable.