condition mean min max 3 h after light 54.684025 30.317 79.2758 7 h after light 51.807575 40.0692 62.7984 11 h after light 66.84225 56.8522 82.2013 2 h after dark 75.142275 56.0389 101.415 6 h after dark 56.4461 38.1806 82.4674 10 h after dark 55.947975 35.8533 87.2449