condition mean min max 4 h after light 15.60395 12.7031 18.5048 8 h after light 21.1786 21.1161 21.2411 12 h after light 21.11375 19.5234 22.7041 4 h after dark 22.841900000000003 22.2071 23.4767 8 h after dark 21.22205 20.3829 22.0612 12 h after dark 24.14365 22.9154 25.3719