condition mean min max 4 h after light 2888.3 2888.3 2888.3 8 h after light 2889.3 2582.3 3196.3 12 h after light 2619.45 2532.8 2706.1 4 h after dark 2634.75 2083.6 3185.9 8 h after dark 2989.45 2764.7 3214.2 12 h after dark 3117.65 2871.8 3363.5