FOREX-Tumbling oil price, upbeat US data lift dollar

* Dollar rises vs yen as oil plummets to 3-month low

* U.S. factory orders jump in June

* Investors await central bank meetings this week (Recasts, updates prices, changes byline)

By Lucia Mutikani

NEW YORK, Aug 4 (Reuters) - The dollar rose against the yen on Monday as the oil price's drop to a three-month low and some upbeat U.S. economic data generated optimism about the prospects of the broader economy.

But caution ahead of Tuesday's Federal Reserve meeting to decide on U.S. interest rates saw the dollar ease against the euro. Analysts said traders were adjusting positions after Friday's gains, which pushed the single currency to a five-week low against the dollar.

"There has been a tremendous movement in the oil price and that's pretty much the major story. The personal income and spending numbers were much stronger than expected, as well as the factory orders," said Andrew Busch, global foreign exchange strategist at BM0 Capital in Chicago.

"These will go into the computation of the second quarter GDP number," Busch said. "I am expecting that number to be revised up from 1.9 to somewhere in the territory of 2.5 percent due to these numbers."

Data last week showed that the U.S. economy expanded at an annual rate of 1.9 percent in the second quarter, up from 0.9 percent in the first three months of 2008. For details, see [nN31399964].

The dollar touched a session peak of 108.29 yen as U.S. light crude oil CLc1 fell as low as $119.50, the lowest level since early May, arresting a sharp decline in U.S. stocks.

In late New York trade, the dollar was last up 0.5 percent at 108.24 yen JPY=. Those gains saw the ICE Futures U.S. dollar index, which tracks the dollar's performance against a basket of six currencies, rise as high as 73.535 .DXY.

NEUTRAL FED STATEMENT EXPECTED

Government data showed stronger-than-expected consumer spending and personal income in June, as well as an unexpected surge in consumer prices. [ID:nN04423003]

That raised prospects of higher U.S. interest rates by the end of the year. But analysts generally expect the Fed to leave its benchmark overnight lending rate steady at 2 percent on Tuesday and deliver a neutral statement on future policy.

A separate report showed new orders at U.S. factories increased more than expected in June.

"We are going to see continued emphasis on the fragility of the financial markets," said Omer Esiner, currency strategist at Ruesch International in Washington.