condition mean min max 4 h after light 381.945406 374.951973 388.938839 8 h after light 354.596376 328.92781 380.264942 12 h after light 367.951211 290.915908 444.986514 4 h after dark 341.6044515 305.969607 377.239296 8 h after dark 346.321918 338.056175 354.587661 12 h after dark 450.422004 450.422004 450.422004