condition mean min max 4 h after light 314.0 314.0 314.0 8 h after light 349.6 339.1 360.1 12 h after light 288.35 269.0 307.7 4 h after dark 315.5 291.9 339.1 8 h after dark 252.9 227.8 278.0 12 h after dark 305.75 294.0 317.5