condition mean min max 4 h after light 41.367533 36.063681 46.671385 8 h after light 43.7509035 40.924934 46.576873 12 h after light 40.928419 39.259218 42.59762 4 h after dark 36.1246285 31.254775 40.994482 8 h after dark 35.35461 25.450843 45.258377 12 h after dark 29.593095 29.593095 29.593095