Marin County
County
Heat class I · 1991-2020 normals
Climate normals in three numbers
, Apr 1 – Oct 31
118 GridMET cells cover this region
raw 4 km GridMET would say II
season rain, Apr 1 – Oct 31
49 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
6.1
pH, 1:1 water
13.2cm
, whole profile
87cm
to
Well drained
, dominant condition
Distribution across 141 · mean ◆, median │, p10–p90 bar
Dominant
- 26.0%
- 10.6%
- 7.7%
- 5.3%
- 4.5%
141 map units · soil described over 87.9% of the region’s area · 10.5% is water, rock outcrop or other non-soil · 92% of the described area has a restrictive layer within the profile.
Sand, silt and clay, against every other appellation
Loam
40% sand · 36% silt · 24% clay
Sandier than 42% of California appellations and clayier than 68%. Each grey point is one appellation’s topsoil; appellations nest, so this is a distribution of places rather than of land.
Plus 13% 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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Bearing acreage by variety
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Price per ton
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