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California Wine Atlas

Imperial County

County

Heat class V · 1991-2020 normals

Climate normals in three numbers

7,041°F-days

, Apr 1 – Oct 31

723 GridMET cells cover this region

V

27mm

season rain, Apr 1 – Oct 31

11 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

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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

8.1

pH, 1:1 water

11.8cm

, whole profile

180cm

to

Somewhat excessively drained

, dominant condition

Distribution across 164 · mean ◆, median │, p10–p90 bar

8.1
0.2%
11.8%
available water
11.8cm
depth to restriction
180cm

Dominant

  • 33.3%
  • 15.0%
  • 15.0%
  • 14.0%
  • 3.8%

164 map units · soil described over 91.7% of the region’s area · 3.5% is water, rock outcrop or other non-soil · 13% of the described area has a restrictive layer within the profile.

Sand, silt and clay, against every other appellation

CLAYSANDSILT

Sandy loam

68% sand · 20% silt · 12% clay

Sandier than 98% of California appellations and clayier than 3%. Each grey point is one appellation’s topsoil; appellations nest, so this is a distribution of places rather than of land.

Plus 18% 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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