condition mean min max 4 h after light 21.7593935 21.326217 22.19257 8 h after light 19.036611 17.508652 20.56457 12 h after light 18.636675 18.112676 19.160674 4 h after dark 18.65336 18.053144 19.253576 8 h after dark 21.635066000000002 20.366089 22.904043 12 h after dark 18.99631 18.99631 18.99631