What Does a Hard Freeze Warning Mean

A freeze warning is issued when low temperatures are expected to be 29 to 32 degrees, and a hard freeze warning is issued when temperatures are expected to be 28 degrees or less. … The NWS issues these warnings as cold temperatures can damage plants and impact agriculture, nurseries and home gardening.

What is the difference between a freeze warning and a hard freeze warning?

Frost and Freeze Advisories Freeze warning: A warning is usually issued when there is at least an 80 percent chance that the temperature will hit 32 degrees Fahrenheit or lower. Hard freeze: This takes place when the temperature falls below 28 degrees Fahrenheit.

What triggers a freeze warning?

A Freeze Warning is issued in the spring at the start of the growing season (when it is late enough to cause damage to new plants and crops). A Frost Advisory is issued when the minimum temperature is forecast to be 33 to 36 degrees on clear and calm nights during the growing season.