condition mean min max 4 h after light 573.2 573.2 573.2 8 h after light 428.5 415.1 441.9 12 h after light 371.75 332.4 411.1 4 h after dark 422.45000000000005 398.8 446.1 8 h after dark 400.04999999999995 330.9 469.2 12 h after dark 427.9 337.4 518.4