condition mean min max 0 h after light 42.9476 41.4112 44.484 4 h after light 57.6474 56.3535 58.9413 8 h after light 59.657700000000006 58.972 60.3434 4 h after dark 53.6862 50.3778 56.9946 8 h after dark 47.9256 44.8654 50.9858 12 h after dark 48.154650000000004 44.7256 51.5837