condition mean min max 4 h after light 12.6 12.6 12.6 8 h after light 38.55 31.5 45.6 12 h after light 46.7 39.1 54.3 4 h after dark 31.4 21.4 41.4 8 h after dark 31.2 21.6 40.8 12 h after dark 22.15 16.1 28.2