Hanzell Vineyards

Information about the planted areas of this vineyard

Grape Profile

Grape Details

Varietals: Chardonnay, Pinot Noir
Vine Age: 29.8 years (average)
Wine Regions: Moon Mountain District Sonoma County, North Coast, Sonoma Valley

Vineyard Size

Planted Area: 44.11 acres

Wine History

There are currently no known wines associated with these grapes. Edit the vineyard blocks to add wines.

Farm Certifications

These blocks do not have any farm certifications

Land Profile


Elevation601.58 ft.
Slope12.9% (7.37°)
AspectSouthwest (224.55°)

Solar Radiation

Average Radiation TotalWH/m2
Growing Season143944.2

Climate Indices

Index Name
Growing Degree-Days3169.62
Huglin Index2322.82
Biologically Effective Degree-Days1784.96

Temperature & Rainfall

AverageHi °FLow °FRain in.
Growing Season79.250.45.09
For more detailed information about the topography, climate, and soil of the vineyard blocks that grew these grapes, click on the individual blocks in the block list.

What's Available

No winegrapes or bulk wine sourced from this vineyard are currently available...

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Block List

Planted Areas of this Vineyard (15)

  1. Block: Ambassador's 1953 (3.9 acres)
    Grape: Unknown
    662.49 ft. | Raynor, Red Hill
    View block details
  2. Block: Day 1 (0.93 acres)
    Grape: Unknown
    535.9 ft. | Raynor
    View block details
  3. Block: Day 2 (1.07 acres)
    Grape: Unknown
    521.32 ft. | Raynor
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  4. Block: Day 3 (2.52 acres)
    Grape: Unknown
    474.61 ft. | Goulding, Raynor
    View block details
  5. Block: de Brye 1 (7.91 acres)
    Grape: Unknown
    784.49 ft. | Red Hill
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  6. Block: de Brye 2 (5.47 acres)
    Grape: Unknown
    731.72 ft. | Red Hill
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  7. Block: de Brye 3 (1.37 acres)
    Grape: Unknown
    710.58 ft. | Red Hill
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  8. Block: Ramos (4.51 acres)
    Grape: Chardonnay
    757.9 ft. | Red Hill
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  9. Block: Sessions (4.47 acres)
    Grape: Pinot Noir
    571.2 ft. | Goulding, Red Hill
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  10. Block: Zellerbach 3 (1.03 acres)
    Grape: Chardonnay
    546.98 ft. | Raynor
    View block details
  11. Block: Zellerbach 4 (0.85 acres)
    Grape: Chardonnay
    556.09 ft. | Raynor
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  12. Block: Zellerbach 5 (0.82 acres)
    Grape: Chardonnay
    574.38 ft. | Raynor
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  13. Block: Zellerbach 6 (0.82 acres)
    Grape: Chardonnay
    564.93 ft. | Raynor
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About Hanzell Vineyards

Hanzell Vineyards’ forty-four acres of Chardonnay and Pinot Noir are planted high on the mountain slopes of the Mayacamas Range overlooking the town of Sonoma. The property saddles this ridge with vineyards planted on both west-facing and east-facing slopes as well as on top of the ridge. Originally called Hanzell Farm, the Estate is comprised of the following vineyards – Ambassador’s 1953 Vineyard, Zellerbach Vineyard, Day Vineyard, de Brye Vineyard, Sessions Vineyard, and Ramos Vineyard. The original planting, the Ambassador’s 1953 Vineyard, continues to produce to this day and is now the oldest Pinot Noir vineyard and the oldest continuously producing Chardonnay vineyard in North America. The Hanzell Clone Pinot Noir and Hanzell Clone Chardonnay are regarded as important heritage clones of California and the bud wood has been propagated to establish other vineyards throughout California and Oregon.

Edit History

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Vineyard-ID: 2990
Created Date: October 18, 2012
Edit History: View Edit History of this Vineyard

Edit Permission

Unlocked: Anyone may edit this vineyard

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Data Notes and References


Farm Certifications: See the certifications page to learn more about the farm certifications Everyvine tracks.
Soil Horizon: Bedrock value set to "-" is not available. Available water capacity units are cm/cm.
Solar Radiation: Area Solar radiation has been calculated in watt hours per square meter (WH/m2)
Topography: Topography values are averaged over the block area. Aspect is expressed in positive degrees from 0 to 359.9, measured clockwise from north.
Growing Season: For use in various statistical averages, Everyvine defines the vineyard growing season as the period April 1st to October 31st.


The vineyard data presented here is most often sourced from the public data sources listed below. However, Everyvine also accepts data from vineyard owners who often have even better data they have collected themseleves.

If you have more accurate data on a vineyard go to: Data Submission page.

Topography: Topographic and solor radiation calculations are based on 1/3 arc-second (approx. 10m) elevation models. Data provided by U.S. Geological Survey (USGS), EROS Data Center, National Elevation Dataset,, 1999
Climate Indices: Calculations based on methodologies described by Gregory Jones and John Gladstones. See the following:
  • Jones, G.V, Duff, A.A., Hall, A., and J. Myers (2009). Spatial analysis of climate in winegrape growing regions in the western United States.ā€¯ American Journal of Enology and Viticulture, in Press Spring 2010.
  • Gladstones, J. (1992) Viticulture and environment (Winetitles: Adelaide).
Month Climate Averages: Monthly and annual temperature and rainfall values based on 30-arcsec (800m) normals for the climatological period 1971-2000. Data provided by PRISM Climate Group, Oregon State University,, October 31,2008
Soil: Soil data is collected from the following sources:
  • SSURGO: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Soil Survey Geographic (SSURGO) Database. Available online at
  • STATSGO2: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. U.S. General Soil Map (STATSGO2). Available online at
  • Web Soil Survey: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at
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