The Obama campaign, in turn, announced they and the Democratic Party pulled in $71 million, the second month in a row they were outraised by their Republican rival.
"It was our best month of this election so far," Obama campaign Chief Operating Officer Ann Marie Habershaw wrote in an email to donors.
"But we still got beat -- and not by a little bit," she continued.
Romney campaign spokesperson Andrea Saul said in a statement Monday, "This month's fundraising is a statement from voters that they want a change of direction in Washington."
"In the months to come, these resources will be crucial to highlighting the difference between President Obama's broken promises and Mitt Romney's plan to get America on the right track again," Saul said.
The Romney campaign says it and its joint RNC committee had at least $160 million in the bank as of June 30. The Obama campaign didn't say how much they and the joint DNC committee have on hand, however, at the end of May, they had $147 million.
For months, the Obama campaign has said raised millions more than Democratic-backed "super PACs" this cycle.
"If we lose this election, it will be because we didn't close the gap enough when we had the chance," Obama campaign COO Habershaw's email added.
Romney held at least one fundraiser on at least 18 out of the 30 days in June. This does not include the three-day retreat with major donors in Utah because according to campaign officials, that was not an actual fundraiser. We do not know the exact number of fundraisers he held because the campaign does not always alert the press when he's holding a fundraiser.
The locations of his fundraisers were spread out: California, Oregon, Washington State, Texas, Missouri, Utah, Georgia, Tennessee, Ohio, Illinois, Michigan, Arizona, Virginia, New York, New Jersey and Washington, D.C.
In comparison, Mr. Obama attended 33 fundraisers in June, the most of any month since filing for re-election in April 2011.