Complaints about water clogged Warren pollution control department phones.
Rain and intermittent ponding from runoff Tuesday created soggy situations for motorists and some homeowners.
The National Weather Service in Cleveland said the Warren and Youngstown region had 1.75 inches of rain by early evening Tuesday.
Trumbull County officials reported yard and street flooding, not only because of the rain but because leaves were clogging intakes.
The worst appeared to have occurred in Warren.
Gary Shaffer, an engineer with the city's water pollution control department, said complaints of flooded streets and some basements backed up department phones in the morning.
The hardest hit was on the northwest side of the city.
Shaffer said that leaves contributed to the problem as they clogged drainage pipes and catch basins. The water subsided, he explained, once crews cleared the intakes and the rain tapered off.
Lordstown reported a similar situation as leaves clogged catch basins. A house on Palmyra Road had so much water in its yard that it spilled over the driveway like a small waterfall.
In Niles, some streets flooded but cleared up as the rain let up.
Don Wittman, Cortland service director, said there was no major flooding, although Walnut Run slightly overflowed its banks.
Flooding also affected roads in Lawrence and Mercer counties.
Manhole covers came off on Stambaugh Avenue in Sharon, and there were some flooding problems on roads in Sugar Grove and Hempfield townships in Mercer County.
In Lawrence County, Nashua Road in Pulaski Township and Dean Drive in Shenango Township were closed due to flooding, according to emergency management officials.