condition mean min max 2 h after light 19.771 18.5459 20.7034 6 h after light 19.978033333333332 18.2385 22.1995 10 h after light 17.650100000000002 16.7357 18.5895 2 h after dark 20.076999999999998 19.6637 20.8933 6 h after dark 20.330433333333332 17.2399 21.9359 10 h after dark 18.55806666666667 18.0481 19.1263