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The summer season is ending on a high note for Lake Mead. After hitting an all-time low at the end of June, the water level is now up 3 feet in September. “It’s like a mini-vacation for me every time,” said Bob Clements, a frequent boater on the lake. “It’s a lot of fun.”The blue water of Lake Mead is just outside of Bob Clements front door, but inside he keeps another view on the wall. A picture taken before the water started draining away from the Lake Mead RV Village.

Okay, okay, so Mark Twain never said that the coldest winter he’d ever spent was a summer in San Francisco. But were he alive today to be misquoted, he might proclaim this summer in California the warmest he’d experienced. And he’d be right. Federal climate trackers confirmed Thursday that this summer (defined as June through August) was California’s warmest in 122 years of records. The statewide average temperature for the three months was 75.5°F, or 3.3°F above average.

La Niña may not happen after all. Federal climate scientists on Thursday dialed back their forecast for the influential weather pattern that is sometimes associated with dry years in parts of the Americas, including California — where another winter of scant rain could wreak havoc on the drought-plagued state.California saw near-normal precipitation in most places last winter, but the state is still wrestling with the fallout from an unprecedented four-year dry spell before that. Water supplies are only beginning to recover, and many farmers and small towns still face restrictions while fish and forests continue to languish.

If you restore aquatic habitat in the Sacramento-San Joaquin Delta, will the fish come back? That’s the basic question behind a major restoration project planned at Prospect Island, a 1,600-acre (650-hectare) tract of levee-protected farmland near Rio Vista that is now owned by the state. The California Department of Water Resources and Department of Fish and Wildlife plan to breach the levees to restore tidal flow to the island, and reshape the terrain to create the kind of shallow habitat that could attract Chinook salmon and delta smelt. The agencies recently released a draft environmental impact report on their project.

Residents of drought-stricken California kept up water conservation in July despite the long, hot days near the peak of summer, officials said. People are most inclined to water their yards when it is the hottest, so dialing back sprinklers also offers the greatest opportunity for savings, officials said. “We’re holding steady” on conservations, said Max Gomberg, a senior climate scientist for the State Water Resources Control Board. “It shows that people understand that the drought’s not over.”