condition mean min max 4 h after light 11.4021585 10.805063 11.999254 8 h after light 11.171502499999999 10.805063 11.537942 12 h after light 10.628583 10.628583 10.628583 4 h after dark 11.1254325 10.805063 11.445802 8 h after dark 11.6542575 10.337742 12.970773 12 h after dark 12.510179 12.510179 12.510179