You are now in California and the U.S. category.

The western United States set records for low winter snowpack levels in 2015, and a new report blames high temperatures rather than low precipitation levels, according to a new study.

Greenhouse gases appear to be a major contributor to the high temperatures, according to the study published Monday in the journal Geophysical Research Letters.

Scientists looked at snow-measurement sites in California, Oregon, Washington, western Nevada and western Idaho. They found that in 2015, more than 80 percent of those sites experienced record low snowpack levels as a result of much warmer-than-average temperatures.

As California enters the sixth year of its historic drought, something unusual is happening: It’s raining. And raining. Rainfall is expected across much of the Bay Area again Sunday, with another storm coming Halloween night. Marin, Sonoma and other North Bay counties should get the biggest soaking. Meteorologists stress that it’s only the very beginning of California’s rainy season, so there are no guarantees that a wet October will bring a wet November, December, January or February. So far, though, October has been surprisingly wet across the northern part of the state, raising the hopes of drought-weary Californians.