Update: Freeze warning in place for Southern Colorado until Tuesday morning, temperatures as low as 23

Published May 20, 2025

On Tuesday at 3:32 a.m. an updated freeze warning was issued by the National Weather Service in effect until 9 a.m. for Four Corners/Upper Dolores River, Animas River Basin and San Juan River Basin.

The NWS states, “Sub-freezing temperatures as low as 23 degrees expected.”

“Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing,” says the NWS. “Take steps now to protect tender plants from the cold.”

Freeze watch or warning – this is what it means

Freeze warnings are issued from May to October (but can be extended if necessary), when low temperatures are expected to be 29-32 degrees. If there is a potential for temperatures to fall into these thresholds, a freeze watch may be issued a few days ahead of time.

According to the NWS, if a freeze warning or watch is issued for your area, there is little you can do to protect plants. If you can move your sensitive plants inside, do so because the freeze will likely kill them, depending on the severity of conditions.

Source: The National Weather Service