condition mean min max 4 h after light 1297.0751384999999 588.456682 2005.693595 8 h after light 1486.136477 1459.071434 1513.20152 12 h after light 1459.523234 1216.737488 1702.30898 4 h after dark 4722.779802499999 2387.002197 7058.557408 8 h after dark 6662.53205 3383.186551 9941.877549 12 h after dark 1374.392474 1374.392474 1374.392474