condition mean min max 2 h after light 15.763300000000001 15.0271 16.1811 6 h after light 18.0175 16.8669 18.8086 10 h after light 18.085533333333334 17.8612 18.2987 2 h after dark 17.995166666666666 16.8997 19.0125 6 h after dark 10.255653333333333 9.80016 10.6705 10 h after dark 9.09622 7.21145 10.1255