condition mean min max 4 h after light 369.4 369.4 369.4 8 h after light 322.9 310.6 335.2 12 h after light 269.95 252.4 287.5 4 h after dark 340.25 315.9 364.6 8 h after dark 292.75 214.7 370.8 12 h after dark 341.45 267.9 415.0