US deaths are also rising and have recently reached the highest levels since early June, led by Arizona, California, Florida and Texas, according to the tally.
More than half of all states - 30 out of 50 - have reported record one-day increases in cases this month. Infections are rising in almost all states, based on a Reuters analysis of cases the past two weeks compared with the prior two weeks.
If Florida were a country, it would rank fourth in the world for the most new cases in a day behind the United States, Brazil and India, according to a Reuters analysis.