District Viamala Postal code 7444 | Canton Graubünden Elevation 1,316 m (4,318 ft) SFOS number 3713 | |
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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.
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Historical population
The combined historical population of the two municipalities is given in the following table:
^a Population increase due to construction of the dam at Valle di LeiWeather
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.