It seems that the beginning of summer Bitcoin performs rather bad, but in the end of summer it tend to get more upward action.

2022 June -> July ?% July -> August ?% (Bearmarket)
2021 June -> July -20% July -> August 47%
2020 June -> July -2% July -> August 29%
2019 June -> July 22% July -> August -7%
2018 June -> July -1% July -> August -2% (Bearmarket)
2017 June -> July -18% July -> August 111%
2016 June -> July -3% July -> August -14%
2015 June -> July 20% July -> August -8% (Bearmarket)