condition mean min max 3 h after light 13.822345833333333 7.8624 19.3246 7 h after light 14.567873333333333 6.18216 19.6573 11 h after light 16.6152075 8.95069 22.5275 2 h after dark 18.56647 9.28934 29.122 6 h after dark 17.052975 8.8318 25.5755 10 h after dark 17.719980833333334 9.44842 23.9539