Frost.aa.zip -

or below): Widespread ice formation that can severely damage or kill most unprotected vegetation. Hard Freeze ( 28∘F28 raised to the composed with power F

): May cause patchy damage to tender plants like tomatoes or basil. Freeze ( 32∘F32 raised to the composed with power F Frost.aa.zip

These dates represent a 30% to 50% probability that frost will occur after the spring date or before the fall date. Local microclimates—such as being under a tree canopy or near a body of water—can shift these dates significantly. Frost vs. Freeze: Why the Distinction Matters or below): Widespread ice formation that can severely

or below): Causes heavy damage to almost all seasonal plants. Gardening Strategy by Frost Date Local microclimates—such as being under a tree canopy

Frost dates are the average dates of the and the first fall frost . They are calculated based on historical climate data from the National Oceanic and Atmospheric Administration (NOAA) and are used to define a region's "growing season".

This is the window between your last spring frost and first fall frost when warm-weather plants thrive.