condition mean min max 4 h after light 47.5 47.5 47.5 8 h after light 183.45 138.1 228.8 12 h after light 101.65 53.9 149.4 4 h after dark 79.0 71.9 86.1 8 h after dark 60.5 4.1 116.9 12 h after dark 256.3 172.4 340.2