condition mean min max 4 h after light 45.62095 44.8955 46.3464 8 h after light 42.0308 40.5806 43.481 12 h after light 69.3566 67.1275 71.5857 4 h after dark 102.618 101.054 104.182 8 h after dark 92.08055 88.5374 95.6237 12 h after dark 66.72465 66.494 66.9553