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California Wine Atlas

Clarksburg

AVA · Sacramento County · District 9, 11, 17 — 46.29% of this appellation; also in Yolo (38.09%), Solano (15.62%)

27 CFR 9.95 · established 1984-01-23 · last amended 2022-03-09

Heat class IV · 1991-2020 normals

Climate normals in three numbers

3,845°F-days

, Apr 1 – Oct 31

39 GridMET cells cover this region

IV

raw 4 km GridMET would say V

78mm

season rain, Apr 1 – Oct 31

24 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

This boundaryClick to open

Hovering a shaded region names it; a click opens its page.

Measured vineyard area

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Drought categories, year by year

Sacramento County — not Clarksburg

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What's in the ground

6.8

pH, 1:1 water

26.8cm

, whole profile

190cm

to

Poorly drained

, dominant condition

Distribution across 62 · mean ◆, median │, p10–p90 bar

6.8
4.1%
37.5%
available water
26.8cm
depth to restriction
190cm

Dominant

  • 23.4%
  • 13.0%
  • 11.8%
  • 6.7%
  • 6.3%

62 map units · soil described over 95.0% of the region’s area · 4.6% is water, rock outcrop or other non-soil · 9% of the described area has a restrictive layer within the profile.

Sand, silt and clay, against every other appellation

CLAYSANDSILT

Clay loam

24% sand · 39% silt · 37% clay

Sandier than 1% of California appellations and clayier than 99%. Each grey point is one appellation’s topsoil; appellations nest, so this is a distribution of places rather than of land.

Plus 0% 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.

Bearing acreage by variety

Sacramento County · District 9, 11, 17 — 46.29% of this appellation; also in Yolo (38.09%), Solano (15.62%)

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Price per ton

Sacramento County · District 9, 11, 17 — 46.29% of this appellation; also in Yolo (38.09%), Solano (15.62%)

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The appellation in federal law

The boundary, in the government’s own words (323 words)

(c) Boundaries. Beginning at a point (on the Sacramento West topographic map) in Yolo County in T8N/R4E, at the intersection of Jefferson Blvd. and Burrows Ave., (1) Then southwest in a straight line 1.2 miles along Jefferson Blvd. to the eastern bank of the Sacramento River Deep Water Ship Channel. (2) Then southwest along the Sacramento River Deep Water Ship Channel, approximately 17 miles to T5N/R3E, to the Class 5 trail on the levee connecting the Sacramento River Deep Water Ship Channel and the dredger cut Miner Slough, approximately 2 miles from the Solano/Yolo County line. (3) Then east along the trail to the Miner Slough. (4) Then south along Miner Slough to the point where it joins Cache Slough. (5) Then south along Cache Slough to the point where it joins the Sacramento River. (6) Then east, then generally northeasterly along the meandering Sacramento River to the point where it meets the Delta Cross Channel at the Southern Pacific Railroad. (7) Then northeast along the Southern Pacific Railroad for 2 miles, to a point 1/3 mile past the intersection of the Southern Pacific Railroad and the eastern branch of Snodgrass Slough. (8) Then east approximately 2 1/2 miles along the levee to Interstate 5 (under construction). (9) Then north approximately 8 1/2 miles along Interstate 5 (under construction, proposed, and completed) to Section 18 in T6N/R5E, at the intersection of Interstate 5 and Hood Franklin Road. (10) Then southwest along Hood Franklin Road to the Southern Pacific Railroad Levee, .1 mile northeast of Hood Junction. (11) Then north approximately 18 miles along the Southern Pacific Railroad Levee to Section 11 in T7N/R4E, at Freeport Blvd., and then across the Sacramento River at the line between Sections 11 and 14. (12) Then northwest along the west bank of the Sacramento River to Burrows Ave. (13) Then northwest along Burrows Ave. to the starting point at the intersection of Jefferson Blvd. and Burrows Ave.