condition mean min max 4 h after light 63.5 63.5 63.5 8 h after light 69.55000000000001 64.7 74.4 12 h after light 109.05000000000001 77.2 140.9 4 h after dark 130.1 58.2 202.0 8 h after dark 62.95 32.0 93.9 12 h after dark 61.75 51.0 72.5