condition mean min max 4 h after light 32.9283 31.8576 33.999 8 h after light 19.1968 18.9148 19.4788 12 h after light 17.000700000000002 16.2371 17.7643 4 h after dark 19.486600000000003 18.0256 20.9476 8 h after dark 21.21075 20.7631 21.6584 12 h after dark 27.414450000000002 26.6853 28.1436