| Wine region | |
 Vines at Chateau Montelena in Calistoga | |
| Type | American Viticultural Area |
|---|---|
| Year established | 2010[1] |
| Country | United States |
| Part of | Napa Valley AVA |
| Other regions in Napa Valley AVA | Atlas Peak AVA, Chiles Valley AVA, Diamond Mountain District AVA, Howell Mountain AVA, Los Carneros AVA, Mt. Veeder AVA, Coombsville AVA, Oak Knoll District of Napa Valley AVA, Oakville AVA, Rutherford AVA, Spring Mountain District AVA, St. Helena AVA, Stags Leap District AVA, Wild Horse Valley AVA, Yountville AVA |
| Climate region | III[2] |
| Precipitation (annual average) | 38 inches (97 cm) to 60 inches (150 cm) annually[3] |
| Total area | approximately 7 square miles (18 km2)[4] |
| Varietals produced | Cabernet Sauvignon, Petite Sirah, Syrah, Zinfandel, Cabernet Franc[3] |
| No. of wineries | 24[4] |
The Calistoga AVA is an American Viticultural Area located in the northern portion of California's Napa Valley AVA. The appellation is distinguished by its volcanic soil,[3] 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 (28 °C).[4]
- ^ "§ 9.209 Calistoga" (Title 27: Alcohol, Tobacco and Firearms; Part 9 — American Viticultural Areas; Subpart C — Approved American Viticultural Areas). Code of Federal Regulations. Retrieved June 24, 2011.
- ^ Manfreda, John J. (March 30, 2005). "Proposed Establishment of the Calistoga Viticultural Area (2003R-496P)". Federal Register (Doc. 05-6350). Retrieved May 2, 2020.
Examination of DAYMET data indicates that most of the proposed viticultural area-mountain slopes and valley floor alike-lies within Region III, defined as the range of 3000 to 3500 degree days.
- ^ a b c "Napa Valley Appellations and Wine Growing Regions". Napa Valley Vintners. Archived from the original on June 24, 2011. Retrieved June 24, 2011.
- ^ a b c SteveLay. "Newest AVA-Do you buy wines based upon an AVA?-Calistoga AVA". Archived from the original on March 26, 2012. Retrieved June 24, 2011.