condition mean min max 4 h after light 47.6648 45.7964 49.5332 8 h after light 63.248400000000004 59.6345 66.8623 12 h after light 57.569900000000004 57.0187 58.1211 4 h after dark 53.4504 53.4467 53.4541 8 h after dark 35.0216 33.5045 36.5387 12 h after dark 55.2344 54.7269 55.7419