condition mean min max 3 h after light 12.600375 6.94133 19.904 7 h after light 14.4573025 9.21506 21.5099 11 h after light 12.968309166666666 7.36177 19.1883 2 h after dark 14.113184166666667 6.25072 26.0786 6 h after dark 13.3066525 5.88872 26.3658 10 h after dark 12.8804975 4.67616 32.029