Ferrera

Ferrera
Coat of arms
Ferrera
Location of Ferrera
Coordinates: 46°33′N 9°26′E / 46.550°N 9.433°E / 46.550; 9.433Coordinates: 46°33′N 9°26′E / 46.550°N 9.433°E / 46.550; 9.433
Country	Switzerland
Canton	Graubünden
District	Viamala
Area
• Total	75.45 km2 (29.13 sq mi)
Elevation	1,316 m (4,318 ft)
Population (Dec 2015)
• Total	84
• Density	1.1/km2 (2.9/sq mi)
Postal code	7444
SFOS number	3713
Localities	Innerferrera, Ausserferrera
Surrounded by	Andeer, Avers, Madesimo (IT-SO), Mulegns, Piuro (IT-SO), Pignia, Riom-Parsonz, Salouf, Sufers
Website	www.ferrera.ch SFSO statistics

Ferrera is a municipality in the Viamala Region in the Grisons, Switzerland. It was formed on 1 January 2008 through the merger of Innerferrera and Ausserferrera. Geographically, it covers the entire Val Ferrera valley.

The combined historical population of the two municipalities is given in the following table:

Innerferrera village in Ferrera has an average of 118.2 days of rain per year and on average receives 1,238 mm (48.7 in) of precipitation. The wettest month is August during which time Innerferrera receives an average of 158 mm (6.2 in) of precipitation. During this month there is precipitation for an average of 12.2 days. The month with the most days of precipitation is May, with an average of 13.3, but with only 141 mm (5.6 in) of precipitation. The driest month of the year is February with an average of 44 mm (1.7 in) of precipitation over 12.2 days.