condition mean min max 4 h after light 14.406421 13.109436 15.703406 8 h after light 14.516161499999999 12.81238 16.219943 12 h after light 14.2454055 12.176225 16.314586 4 h after dark 12.359834 11.369173 13.350495 8 h after dark 12.984013000000001 12.29069 13.677336 12 h after dark 16.449591 16.449591 16.449591