condition mean min max 4 h after light 270.345092 181.001421 359.688763 8 h after light 343.27788899999996 336.639907 349.915871 12 h after light 433.905461 399.058487 468.752435 4 h after dark 332.127878 266.385903 397.869853 8 h after dark 309.26206 275.235451 343.288669 12 h after dark 229.345224 229.345224 229.345224