condition mean min max 4 h after light 252.882815 244.927617 260.838013 8 h after light 265.034918 256.733375 273.336461 12 h after light 306.753509 280.517159 332.989859 4 h after dark 355.85049449999997 328.649928 383.051061 8 h after dark 502.56214750000004 446.276854 558.847441 12 h after dark 444.342076 444.342076 444.342076