condition mean min max 3 h after light 10.504303333333333 9.27726 12.2966 6 h after light 15.815166666666666 11.1921 23.2361 9 h after light 32.33403333333333 25.1422 39.791 12 h after light 39.417255 5.85622 51.0579 3 h after dark 14.359133333333334 13.7681 15.0686 6 h after dark 6.19051 5.81173 6.38283 9 h after dark 4.23323 2.80898 5.41486 12 h after dark 3.87835 3.87439 3.88231