condition mean min max 3 h after light 39.208733333333335 34.8169 47.7275 6 h after light 40.0804 34.2254 48.0327 9 h after light 34.57573333333333 26.6533 38.7114 12 h after light 32.57255 16.0612 39.5863 3 h after dark 28.436333333333334 27.6762 28.9811 6 h after dark 16.469133333333332 15.1299 18.6905 9 h after dark 11.18257 9.29371 12.5589 12 h after dark 9.931725 9.75745 10.106