condition mean min max 4 h after light 29.2639 27.1438 31.384 8 h after light 24.41305 24.1309 24.6952 12 h after light 26.68725 25.7995 27.575 4 h after dark 64.3665 63.2804 64.9581 8 h after dark 57.126933333333334 55.4392 59.2711 12 h after dark 50.5874 46.5275 54.972