condition mean min max 4 h after light 4.3 4.3 4.3 8 h after light 25.6 9.6 41.6 12 h after light 38.75 36.5 41.0 4 h after dark 26.6 13.3 39.9 8 h after dark 28.5 22.4 34.6 12 h after dark 17.7 6.7 28.7