condition mean min max 4 h after light 16.686812000000003 16.501522 16.872102 8 h after light 17.531556 17.531556 17.531556 12 h after light 17.536489500000002 17.531556 17.541423 4 h after dark 17.531556 17.531556 17.531556 8 h after dark 16.9568705 15.481692 18.432049 12 h after dark 17.140067 17.140067 17.140067