An impressive storm system drenched much of the Central San Joaquin Valley with rain over the weekend and dropped much-needed snow in the Sierra. Snow levels fell to around 3,500 feet in the foothills. “It was our first, real significant winter system,” National Weather Service meteorologist Jeff Barlow said. An overall .77 inches of rain was recorded at the Fresno Air Terminal by Sunday. In Madera County, half an inch of rain was recorded at the Madera Airport by Sunday.