The semi-arid climate of the Southwestern United States (‘Southwest’) presents unique challenges for quantifying drought conditions due to annual pote…

The Burn Period Tracker tool provides real-time information on the number of hours per day that relative humidity is less than or equal to 20% – a metric informally known as the "burn period." The too...

The Southwest Climate Outlook is published by the Climate Assessment for the Southwest (CLIMAS), with support from University of Arizona Cooperative Extension, and the New Mexico State Climate office....

As our climate changes, growing seasons and migration patterns are happening at different times than in the past.