condition mean min max 2 h after light 39.33415 31.7678 47.499 6 h after light 41.3982 28.1771 53.1678 10 h after light 50.96543333333334 33.5059 71.3566 14 h after light 64.13946666666666 39.0697 89.3539 18 h after light 50.97366666666667 41.1863 57.7236 2 h after dark 58.85695 40.7979 67.2359