Continentality

The distance between a site and open ocean water. Continental interiors (obviously!) and areas surrounded by nearly permanent, continuous sea ice are highly continental.
Found on https://www.encyclo.co.uk/local/20131

continentality

(from the article `climate`) Continentality is a measure of the difference between continental and marine climates and is mainly the result of the increased range of temperatures ...
Found on http://www.britannica.com/eb/a-z/c/134

Continentality

The tendancy for the middle regions of continents to have a wider temperature range than coastal areas.
Found on http://www.bbc.co.uk/weather/weatherwise/glossary/c.shtml
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