condition mean min max 4 h after light 309.36725 303.341029 315.393471 8 h after light 409.028238 407.648506 410.40797 12 h after light 442.35713350000003 407.797734 476.916533 4 h after dark 519.197867 429.202705 609.193029 8 h after dark 532.5508414999999 358.302198 706.799485 12 h after dark 363.077595 363.077595 363.077595