George Allen raised more than $900,000 from July through September for his bid to return to the Senate, his campaign said Friday.

Allen, the heavy favorite to win the Republican nomination in the contest to succeed retiring Sen. James Webb (D), has raised a total of $3.5 million. Allen had $1.8 million in the bank as of Sept. 30.

Allen’s third quarter haul is less than the $1.1 million he raised in the second quarter of the year, though he has spent a significant amount of time in recent months raising cash for Republican candidates in Virginia’s 2011 state legislative elections as well as for himself.

Former governor Timothy M. Kaine, the likely Democratic nominee in the Senate contest, has not released his numbers for the latest fundraising period. Kaine raised roughly double what Allen did in the second quarter, and the former Democratic National Committee chairman is widely expected to best Allen again in the latest report.

“Susan and I are heartened by the incredible generosity and support that we continue to receive as we campaign to bring Virginians voices and values to the U.S. Senate,” Allen said in a statement released by his campaign. “Our strong grassroots team is working hard and it’s invigorating to see the momentum build as we grow stronger by the day. Even as Susan and I continue to travel the Commonwealth campaigning and raising money for General Assembly and local candidates on the ballot this year, it is clear there is an urgency for action.”