condition mean min max 4 h after light 27.4742 25.3521 29.5963 8 h after light 18.1432 17.2555 19.0309 12 h after light 17.513550000000002 16.9279 18.0992 4 h after dark 20.2942 19.1596 21.4185 8 h after dark 23.4313 22.3266 24.3541 12 h after dark 29.229633333333332 28.757 29.9818