condition mean min max 4 h after light 911.2258 846.3391 944.4152 8 h after light 820.7064666666666 627.6389 921.0231 12 h after light 577.3355 408.9557 833.0897 16 h after light 1162.883 941.9119999999999 1421.711 4 h after dark 987.6553 910.6089 1050.143 8 h after dark 752.5801 536.6406 887.9777