condition mean min max 4 h after light 19.8923 11.8063 31.1842 8 h after light 13.405619999999999 5.35092 27.479 12 h after light 11.554433333333334 10.0669 14.2364 4 h after dark 15.892233333333333 12.7953 19.2061 8 h after dark 16.6606 12.7381 18.9322 12 h after dark 10.89171 5.99843 13.869