Mendocino County
County
Heat class II · 1991-2020 normals
Climate normals in three numbers
, Apr 1 – Oct 31
613 GridMET cells cover this region
season rain, Apr 1 – Oct 31
82 mm of it in the , Sep 1 – Oct 31
Warm and cool vintages since 1980
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Rain across the season, and at harvest
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The boundary
Hovering a shaded region names it; a click opens its page.
Measured vineyard area
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Drought categories, year by year
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What's in the ground
6.0
pH, 1:1 water
14.0cm
, whole profile
115cm
to
Well drained
, dominant condition
Distribution across 524 · mean ◆, median │, p10–p90 bar
Dominant
- 9.3%
- 7.7%
- 7.4%
- 7.0%
- 6.2%
524 map units · soil described over 95.7% of the region’s area · 4.8% is water, rock outcrop or other non-soil · 78% of the described area has a restrictive layer within the profile.
Sand, silt and clay, against every other appellation
Loam
44% sand · 36% silt · 21% clay
Sandier than 59% of California appellations and clayier than 37%. Each grey point is one appellation’s topsoil; appellations nest, so this is a distribution of places rather than of land.
Plus 19% rock fragments by volume, which the triangle does not describe — the three fractions are of the fine-earth material only.
Elevation, slope and aspect
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Producers
A curated roster, not a census — only source-verified entries appear, 2772 published across the atlas.
The roster places a producer in the appellation it names, never in a county — a winery’s address is a street in an AVA, and filing it under the county would be a claim about which of an AVA’s counties it sits in. So this region has no roster of its own, and 3 producers are entered in the appellations within it:
Bearing acreage by variety
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Price per ton
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