condition mean min max 4 h after light 30.3 30.3 30.3 8 h after light 17.7 5.8 29.6 12 h after light 60.8 57.3 64.3 4 h after dark 32.05 30.6 33.5 8 h after dark 33.1 24.1 42.1 12 h after dark 49.9 49.8 50.0