condition mean min max 4 h after light 1514.592721 972.081176 2057.104266 8 h after light 1422.0782105 1348.539749 1495.616672 12 h after light 1234.9001250000001 1208.746944 1261.053306 4 h after dark 1662.2496575 1389.964924 1934.534391 8 h after dark 1449.9435290000001 1324.995101 1574.891957 12 h after dark 1848.779278 1848.779278 1848.779278