condition mean min max 4 h after light 56.1336 55.8954 56.3718 8 h after light 55.52435 53.7951 57.2536 12 h after light 52.5075 44.5798 60.4352 4 h after dark 40.7009 35.6991 44.5109 8 h after dark 48.40323333333333 46.4694 49.3765 12 h after dark 51.91513333333334 48.1031 55.465