condition mean min max 4 h after light 12.51285 12.1915 12.8342 8 h after light 12.867049999999999 12.3491 13.385 12 h after light 14.56635 14.349 14.7837 4 h after dark 20.30043333333333 15.7236 28.3404 8 h after dark 16.766833333333334 12.0979 20.3792 12 h after dark 13.755453333333334 8.48196 16.6377