But after such sharp sell-offs, investors took a breather Tuesday, in part wary that policy-makers may be tiring of such a weak dollar. A source close to the preparations for a Eurogroup meeting told Reuters that Europe will push for a stronger statement against exchange rate volatility from the Group of Seven rich nations when they meet later this month.
Having a strong currency can devastate a country's trade position by curbing exports.
Fresh clues on the health of the U.S. economy and the need for more rate cuts may come with the September non-farm payrolls on Friday, especially after the August data reflected the first contraction in the job market in four years.
"The dollar is firmer across the board as profit-taking on short dollar positions gets into full swing," wrote currency strategists with Brown Brothers Harriman in New York in a note to clients.
"Underlying dollar bearish sentiment has not disappeared but a good deal of it has been priced in."
The dollar index, a gauge of the greenback's value against a basket of six major currencies, added 0.5% to 78.311, rebounding from a lifetime low of 77.657 hit Monday.
The euro was down against the dollar, not far from Monday's all-time high of $1.4281, according to Reuters data.
Few analysts believe the dollar's long-term decline has ended or that the troubled U.S. housing sector -- the source of global credit market turmoil -- has turned around. But for now dealers said the bar has been raised for news that can drag the dollar sharply lower.
A report on Tuesday showed an index tracking pending U.S. home sales in August fell to the lowest since 2001, when the history of the data began. However, the dollar actually strengthened modestly, as dealers cashed in bets against the greenback at attractive levels.
"In general the market is pretty well aware of the housing recession, and so the immediate impact of these kind of numbers is going to become less pronounced going forward," said Dustin Reid, foreign exchange strategist with ABN Amro in Chicago.
The dollar was steady against the yen, while the euro fell versus the Japanese currency.
The Australian dollar dropped after it struck an 18-year high against the U.S. dollar this week. The New Zealand dollar also fell versus the greenback.
Apart from economic data and positioning, market participants have been taking notice of increasing jawboning by European policy-makers ahead of the G7 meeting.
Many analysts believe European Central Bank President Jean-Claude Trichet's statements Monday referring to the U.S. government's strong dollar policy could set the stage for a concerted push for stronger language on currencies ahead of the G7 meeting.