condition mean min max 4 h after light 22.30145 19.7546 24.8483 8 h after light 33.8919 32.8441 34.9397 12 h after light 63.46015 63.2154 63.7049 4 h after dark 66.64753333333333 63.6957 69.2727 8 h after dark 49.73133333333333 48.7155 50.5427 12 h after dark 33.21626666666667 31.9996 35.3688