condition mean min max 4 h after light 328.5 328.5 328.5 8 h after light 326.0 314.5 337.5 12 h after light 365.05 318.8 411.3 4 h after dark 390.9 385.0 396.8 8 h after dark 400.25 368.1 432.4 12 h after dark 367.1 366.4 367.8