condition mean min max 4 h after light 358.4 358.4 358.4 8 h after light 313.65 295.0 332.3 12 h after light 410.65 336.0 485.3 4 h after dark 357.6 351.7 363.5 8 h after dark 345.4 321.9 368.9 12 h after dark 379.6 331.2 428.0