condition mean min max 0 h after light 37.29455 37.2613 37.3278 4 h after light 29.4347 26.2005 32.6689 8 h after light 29.55325 28.8149 30.2916 4 h after dark 42.66095 30.3543 54.9676 8 h after dark 29.28615 28.1634 30.4089 12 h after dark 51.755300000000005 49.615 53.8956