condition mean min max 4 h after light 58.143299999999996 57.2576 59.029 8 h after light 60.93275 58.0985 63.767 12 h after light 60.06615 59.1016 61.0307 4 h after dark 71.68935 71.5446 71.8341 8 h after dark 73.88015 73.4721 74.2882 12 h after dark 67.84395 66.3592 69.3287