condition mean min max 4 h after light 434.1 434.1 434.1 8 h after light 379.6 313.3 445.9 12 h after light 296.75 290.8 302.7 4 h after dark 350.65 324.4 376.9 8 h after dark 465.45 396.4 534.5 12 h after dark 424.65 386.9 462.4