condition mean min max 4 h after light 2709.6 2709.6 2709.6 8 h after light 2848.7 2490.2 3207.2 12 h after light 3084.4 2666.9 3501.9 4 h after dark 3193.45 2592.0 3794.9 8 h after dark 3404.3 2981.9 3826.7 12 h after dark 3005.15 2691.0 3319.3