condition mean min max 4 h after light 3021.1 3021.1 3021.1 8 h after light 2569.0 2497.3 2640.7 12 h after light 2517.1499999999996 2378.7 2655.6 4 h after dark 2644.25 2588.2 2700.3 8 h after dark 2705.05 2587.9 2822.2 12 h after dark 2704.7 2661.2 2748.2