condition mean min max 4 h after light 27.2516075 20.631848 33.871367 8 h after light 15.8982605 14.870464 16.926057 12 h after light 16.3847075 16.249348 16.520067 4 h after dark 18.794001 13.551111 24.036891 8 h after dark 25.010675499999998 15.793896 34.227455 12 h after dark 20.590109 20.590109 20.590109