condition mean min max 4 h after light 23.1975375 20.198082 26.196993 8 h after light 30.5718005 26.953089 34.190512 12 h after light 21.3523785 18.629203 24.075554 4 h after dark 25.9254835 24.669169 27.181798 8 h after dark 23.6594325 19.670303 27.648562 12 h after dark 17.839286 17.839286 17.839286