condition mean min max 0 h after light 49.183350000000004 48.9825 49.3842 4 h after light 26.80105 25.1594 28.4427 8 h after light 35.48524999999999 32.8946 38.0759 4 h after dark 36.09195 33.615 38.5689 8 h after dark 50.5257 48.5616 52.4898 12 h after dark 46.4483 38.4516 54.445