condition mean min max 4 h after light 37.2 37.2 37.2 8 h after light 58.7 52.2 65.2 12 h after light 53.2 50.2 56.2 4 h after dark 60.45 42.1 78.8 8 h after dark 65.85 62.3 69.4 12 h after dark 56.05 38.6 73.5