Climate Profile

Temperature and Rainfall
Average Hi °F Low °F Rain in.
Annual 71 44.2 18.32
Growing Season 74.6 48 2.74


Avg. Annual Temperature 57.6 °F
Avg. Growing Season Temperature 61.3 °F
Climatic Region (Winkler) Cool I/II


Monthly Averages
Month High (°F) Low (°F) Rainfall (in.)
Jan 63.6 37.1 3.54
Feb 65 39.5 4.24
Mar 65.9 40.1 3.94
Apr 67.6 41.9 1.17
May 70.9 45.6 0.38
Jun 73.8 48.8 0.07
Jul 78.1 51.8 0
Aug 78.4 52 0.05
Sep 77.8 50 0.37
Oct 75.2 45.7 0.69
Nov 70.2 40.5 1.41
Dec 64.9 37 2.46


Thompson Vineyard Average Rain and Temperature

  Diurnal Temp Diurnal Temp freezelevel 32° (Freeze)
  rainfall Rainfall growingseason Growing Season

Soil Profile

Component Name/Kind

Betteravia variant, Botella, Chamise, San Andreas / Series

Map Units
Betteravia loamy sand, dark variant, 0 to 5 percent slopes, eroded;  Betteravia loamy sand, dark variant, 5 to 15 percent slopes, eroded;  Botella loam, 0 to 2 percent slopes, eroded Chamise shaly loam, 15 to 45 percent slopes;  Tierra complex, 15 to 30 percent slopes / Consociation, Complex

Coarse-loamy, mixed, thermic Typic Argixerolls, Fine-loamy, mixed, thermic Pachic Argixerolls, Clayey-skeletal, mixed, thermic Ultic Palexerolls, Coarse-loamy, mixed, thermic Typic Haploxerolls
  Order Mollisols
  Suborder Psamments
  Particle Size Not Used


Soil Horizon

Bedrock Depth:  33cm

Available Water Storage cm
0-25 cm 2.7
0-50 cm 5.39
0-100 cm 8.56
0-150 cm 10.36
  Typical Low High
Avail. Water Capacity 0.11 0.12
pH H2O 5.8 5.1 6.5
Horizon Depth cm
Bottom 48
Soil Capability Classifications
Land (Class/Subclass) 4 / e, c
Natural Drainage Well drained
Irrigated 3, 1, 6, 4
Non-Irrigated 4
Hydrologic Group C, B, D

Surface Profile

  Value STD
Elevation 814.75 ft. 25.24
Slope 8.4% (4.78°) 2.32
Aspect South (167.3°) 55.55


Solar Radiation
Average Radiation Total WH/m2
Annual 120259.14
Growing Season 155604.42

Monthly Average (WH/m2)
Jan 55551.53
Feb 71992.38
Mar 118750.23
Apr 151325.33
May 180446.7
Jun 182468.79
Jul 186432.14
Aug 167659.15
Sep 132065.14
Oct 88833.72
Nov 60058.27
Dec 47526.26


  Radiation Total growingseason Growing Season


Vineyard Data



Aspect Map




Varietal Map


Slope Map

Sources:  Climate data represents approximate relations over time based on published research and other public sources believed to be reasonably accurate.  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: Using monthly and annual temperature data. 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. 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