condition mean min max 4 h after light 27.6014805 27.297497 27.905464 8 h after light 24.818862 22.033336 27.604388 12 h after light 21.508515000000003 15.925235 27.091795 4 h after dark 18.8719155 16.47291 21.270921 8 h after dark 16.651182 16.332411 16.969953 12 h after dark 30.3117 30.3117 30.3117