condition mean min max 4 h after light 2862.2 2862.2 2862.2 8 h after light 2480.55 2287.3 2673.8 12 h after light 3039.0 2299.8 3778.2 4 h after dark 2535.4 1583.0 3487.8 8 h after dark 2207.95 1680.3 2735.6 12 h after dark 2520.65 2373.3 2668.0