Thornton’s May 2025 preview: From snow to severe storms

The Month of May

Colorado’s famously highly variable weather seems to showcase itself during the month of May when a variety of weather conditions can be seen.

The month can certainly bring extremes.

Snow is not entirely uncommon during the month, occurring in about 50% of Mays. When it does, it has the potential to cause damage to newly bloomed trees.

More common however is severe weather, particularly in the latter half of the month.  Thunderstorms become more frequent and their associated hazards – lightning, wind, hail and tornadoes – are usual visitors.

For a complete look at what lies ahead for the month of May, check out our full preview here.