condition mean min max 4 h after light 19.291897 18.983526 19.600268 8 h after light 22.1535805 21.635517 22.671644 12 h after light 21.195103000000003 20.523472 21.866734 4 h after dark 24.728174 21.635517 27.820831 8 h after dark 23.028781000000002 21.746531 24.311031 12 h after dark 21.558445 21.558445 21.558445