mesoclimate
The discrete climatic conditions of a specific localized area, usually measured in terms of tens of yards, sometimes hundreds of yards if there is a consistent set of traits for a larger area. mesoclimate falls between the larger macroclimate and the smaller microclimate. It’s often used to refer to a specific vineyard site or portion of a site that is unique.
The New Wine Lovers Companion, 2nd Edition, by Ron Herbst and Sharon Tyler Herbst. Copyright © (1) 2003, 1995 by Ron Herbst and Sharon Tyler Herbst. Reprinted by arrangement with Barron's Educational Series, Inc.