condition mean min max 4 h after light 16.659246500000002 15.489247 17.829246 8 h after light 12.512428499999999 11.079393 13.945464 12 h after light 15.489247 15.489247 15.489247 4 h after dark 15.619757 13.033568 18.205946 8 h after dark 16.4081685 14.848783 17.967554 12 h after dark 19.474998 19.474998 19.474998