US FROST LINES
US FROST LINE MAP
The US frost lines average from as little as 4" in South Carolina to an estounding 8ft in Alaska. In Maryland the average depth is 30". Surround states vary from 20" in VA to 44" in PA. If you are not a big frost person both Hawaii or Florida did not make the list.
US STATES AVG FROST DEPTH
Maryland the average depth is 30". Surround states vary from 20" to 44"
US FROST DEPTH MAP
US FROST DEPTH MAP
When liquid water is cooled, it contracts like one would expect until a temperature of approximately 39 degrees is reached. After that, it expands slightly until it reaches the 32 degree freezing point, and then when it freezes it expands by approximately 9%.