condition mean min max 4 h after light 134.1 134.1 134.1 8 h after light 141.6 127.8 155.4 12 h after light 133.45 113.8 153.1 4 h after dark 73.6 30.5 116.7 8 h after dark 94.25 86.3 102.2 12 h after dark 66.25 65.2 67.3