Tucson recorded over five inches of rain in the first half of last year’s monsoon and less than half an inch in the second ...

The National Weather Service released its outlook for the 2025 monsoon to give you an idea of what to expect as summer ...

The Climate Prediction Center released its Arizona Monsoon Outlook Tuesday with expectations of above normal precipitation.

Monarch butterflies uniquely make a two-way migration every year! Read here to learn where they travel in Arizona.

Climatologists say every monsoon is different and forecasting it can be hit or miss as conditions change in the oceans. A ...

“When you don't have either El Niño or La Niña with a neutral pattern ... A sporadic monsoon without consistent, widespread rainfall kept Phoenix abnormally hot all summer. Arizona is ...

Monsoon season, by definition, is a reversal of weather patterns. In the winter, jet streams carry rain west to east from the Pacific Ocean into Arizona. But during the summer the storms come from ...

"We argue that as the monsoon becomes stronger and more variable, productivity collapses," said Kaustubh Thirumalai, the study's lead author and a scientist at the University of Arizona.

the University of Arizona and collaborators from India, China and Europe. To reach their conclusions, the scientists examined how the monsoon, which brings heavy rains to the Indian subcontinent ...

an assistant professor at the University of Arizona and lead author of the study. "Together, these chemical signals helped us understand how the monsoon and ocean conditions responded to global ...