Juwan Morgan had his highest three-point percentage in a season in his rookie season in 2019-20, at 37.5 percent.

juwan morgan highest 3pt% in a season
2019-20Morgan2020-21Morgan37.530.8
NAMESEASONTMGP3P%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PAFTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Juwan MorganJuwan Morgan2019-20UTAUTA2137.56.41.71.40.30.00.10.30.71.257.70.10.40.10.275.01343629612619+30
Juwan MorganJuwan Morgan2020-21UTAUTA2930.85.11.21.00.30.10.00.10.51.046.70.10.40.10.242.91473528941421-107
StatMuse has season-level data for three-point percentage going back to the 1979-80 season.

Try also: