condition mean min max 4 h after light 16.1 16.1 16.1 8 h after light 37.3 31.4 43.2 12 h after light 22.65 22.3 23.0 4 h after dark 47.6 46.7 48.5 8 h after dark 38.6 5.0 72.2 12 h after dark 65.65 58.2 73.1