condition mean min max 4 h after light 171.8603245 120.334746 223.385903 8 h after light 227.48262799999998 197.042971 257.922285 12 h after light 288.4349665 270.506126 306.363807 4 h after dark 172.605139 148.540614 196.669664 8 h after dark 90.511905 89.963672 91.060138 12 h after dark 158.001288 158.001288 158.001288