condition mean min max 4 h after light 31.2 31.2 31.2 8 h after light 27.6 26.4 28.8 12 h after light 14.25 11.6 16.9 4 h after dark 1.65 0.9 2.4 8 h after dark 9.05 4.6 13.5 12 h after dark 6.550000000000001 4.2 8.9