condition mean min max 4 h after light 12.896128000000001 11.198028 14.594228 8 h after light 16.0279335 13.028182 19.027685 12 h after light 40.792874499999996 32.109808 49.475941 4 h after dark 25.7536615 25.285049 26.222274 8 h after dark 46.9756755 32.380386 61.570965 12 h after dark 11.988156 11.988156 11.988156