condition mean min max 4 h after light 170.018884 145.49639 194.541378 8 h after light 197.2309285 150.847441 243.614416 12 h after light 183.016362 170.17689 195.855834 4 h after dark 147.721406 116.300598 179.142214 8 h after dark 147.3855935 131.616672 163.154515 12 h after dark 101.857293 101.857293 101.857293