condition mean min max 4 h after light 3018.9 3018.9 3018.9 8 h after light 3029.5 2896.5 3162.5 12 h after light 2897.75 2559.4 3236.1 4 h after dark 2690.3999999999996 2538.2 2842.6 8 h after dark 2619.05 2409.4 2828.7 12 h after dark 2255.9 2114.8 2397.0