The intermittent nature of solar energy poses challenges to grid stability, making accurate ultra-short-term solar irradiance ...

This story is part of the KXAN Data Hub, where numbers help tell the whole story. We’ve created several data-driven stories and databases on topics including weather and climate, politics, education, ...

Temperatures will remain cold as we ring in the new year. New Year's Eve is an Impact Day with a few snow showers this ...

The official stats confirm the way it feels: Tucson’s monsoon rainfall is slightly below average so far this summer. As of Monday afternoon, the city had 1.88 inches since the monsoon season ...