condition mean min max 4 h after light 19.8 19.8 19.8 8 h after light 28.75 4.1 53.4 12 h after light 42.15 38.8 45.5 4 h after dark 29.6 15.2 44.0 8 h after dark 27.5 4.3 50.7 12 h after dark 42.25 39.0 45.5