Monsoon moisture increases the threat for flash flooding this week 02:36. Monsoon season in Colorado generally starts in late July or early August. This year it arrives right on schedule.

Arizona weather: Monsoon, heat and storm forecasts, alerts, warnings in Phoenix and across the state Benedict added it's hard to predict where in the Phoenix area the first rains will hit, since ...

Monsoon season is when the region typically sees the most rainfall, from June 15 to Sept. 30. El Paso was anticipating a dryer-than-normal monsoon season because of drought.