condition mean min max 4 h after light 35.06825 32.7147 37.4218 8 h after light 38.76245 37.7381 39.7868 12 h after light 44.07925 41.6311 46.5274 4 h after dark 48.90015 48.3675 49.4328 8 h after dark 52.18585 50.3457 54.026 12 h after dark 47.9235 47.3689 48.4781