[blue_large]Calistoga District AVA[/blue_large]
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The Calistoga AVA is located in the northern portion of California’s Napa Valley AVA. The appellation is distinguished by its volcanic soil, high temperatures up to 100°F (38°C) during the day, and cool nights during the growing season due to breezes from the Russian River, causing the highest diurnal temperature variation in the Napa Valley—up to 50°F (10°C).
|Climate||Warm to hot, depending upon time of year; lower humidity; summer temperatures peak to 90°F (32.2°C) and fall to low 50s°F (11°C), the result of marine air from the northwest; cool afternoon and evening breezes|
|Elevation||300 to 1200 ft (92 to 370m)|
|Rainfall||38 to 60 inches (96.5 to 150cm) annually|
|Soils||Almost completely of volcanic origin, soils range from rocky, stony loam on the hillsides, to gravelly or cobbly loams on the alluvial fans, to heavier clay-silt soils in the valley center areas|
|Total Area||11,000 acres (45 km2)|
|Size of planted vineyards||1,500 acres (6 km2)|
|Varietals/characteristics||Cabernet Sauvignon, Zinfandel, Syrah, Petite Sirah of this area have a forthright character, deep concentration without heaviness, and the capacity to develop profound complexity with age.|