An overnight storm dumped about more than an inch of rain on much of Sonoma County Tuesday and early Wednesday, continuing a wet week that could get wetter today.

Volunteer rain watchers recorded precipitation totals near 1 inch in Santa Rosa, 1.21 inches in Cloverdale, 1.36 inches in west county, and .76 inches in southern Sonoma County in the 24-hours ending at 7 a.m. Wednesday.

Official statistics aren't available until 5 p.m., but Steve Anderson with the National Weather Service said the storm gave Sonoma County a soaking.

"We had anywhere from a half to one inch of rain in the valleys and one to three inches in the mountains," he said.

The rain caused problems in some areas. St. Helena Road at Tarwater was closed and a downed tree was reported in the 1700 block of Napa Road in Sonoma.

After starting with summer-like temperatures, October has been decidedly wintery since Monday.

Rainfall measured at the Charles M. Schulz-Sonoma County Airport on both Monday and Tuesday topped 30-year records.

As of Tuesday, the 0.87 inches of total rain recorded at the airport this month was more than nine times normal for October.

The dampness should continue today.

The weather service is calling for a 90 percent chance of precipitation in Santa Rosa with showers, a possible thunderstorm and gusts up to 24 mph. Heavy sustained rains, however, have moved south, Anderson said.

Conditions are expected to improve Thursday with only a 20 percent chance of showers before the sunshine returns later this week with highs in the 70s expected Friday through Tuesday.

You can reach Staff Writer Sam Scott at 521-5431 or at