condition mean min max 4 h after light 372.5 372.5 372.5 8 h after light 164.15 154.9 173.4 12 h after light 262.1 250.3 273.9 4 h after dark 271.25 180.4 362.1 8 h after dark 309.85 309.4 310.3 12 h after dark 342.5 314.4 370.6