condition mean min max 4 h after light 174.2765445 161.822548 186.730541 8 h after light 236.1725485 213.2987 259.046397 12 h after light 221.76412249999998 198.97152 244.556725 4 h after dark 270.159798 237.924364 302.395232 8 h after dark 225.831043 197.124855 254.537231 12 h after dark 254.520649 254.520649 254.520649