condition mean min max 4 h after light 4.767665 3.77175 5.76358 8 h after light 24.92755 22.4247 27.4304 12 h after light 46.841499999999996 41.3518 52.3312 4 h after dark 13.1287 12.6393 13.4156 8 h after dark 7.3745899999999995 5.29397 8.82223 12 h after dark 3.1633366666666665 2.82485 3.55943