condition mean min max 4 h after light 14.2451 12.9468 15.5434 8 h after light 12.5825 12.3616 12.8034 12 h after light 16.1171 15.8433 16.3909 4 h after dark 22.421433333333333 21.6344 22.8385 8 h after dark 20.995033333333332 19.1878 22.285 12 h after dark 19.665033333333334 19.0644 20.4505