condition mean min max 4 h after light 72.3 72.3 72.3 8 h after light 53.1 41.5 64.7 12 h after light 44.6 15.8 73.4 4 h after dark 58.45 57.2 59.7 8 h after dark 71.9 47.1 96.7 12 h after dark 60.6 50.0 71.2