The United States is getting hotter and Delaware Valley along with it, once again redefining “climate normals” for the area, write Henry Fountain and Jason Kao for The New York Times.

The National Oceanic and Atmospheric Administration issued its latest “climate normals” last week. The numbers are updated once every ten years and represent baseline data for temperature, rain, snow, and other weather variables that have been collected over three decades in different locations throughout the region.

According to the latest numbers, the norms for Delaware Valley have gone from being 0.6 degrees Fahrenheit below the 20th century average at the start of the last century to 1.5 degrees above the same average in the last three decades.

Precipitation normals have also increased drastically across the nation and in the region, rising from 3 percent under the twentieth-century average over a century ago in the Delaware Valley to 6 percent above the same average over the last thirty years.

“We’re really seeing the fingerprints of climate change in the new normals,” said Michael Palecki, who manages the weather project at NOAA’s National Centers for Environmental Information.

Read more about the changes in weather in The New York Times.