Val Müstair about 63.7% of the population (between age 25–64) have completed either non-mandatory upper secondary education or additional higher education (either University or a Fachhochschule). Sta. Maria Val Müstair has an unemployment rate of 1.45%. , there were 32 people employed in the primary economic sector and about 10 businesses involved in this sector. 49 people are employed in the secondary sector and there are 10 businesses in this sector. 192 people are employed in the tertiary sector, with 32 businesses in this sector. The historical population is given in the following table: Languages Most of the population () speaks Rhaeto-Romance (69.7%), with German being second most common (25.4%) and Portuguese being third ( 2.4%). Most of the population speaks the Jauer dialect of Romansh, though even in the 19th Century there was a German-speaking minority. In 1880 about 81% of the population spoke Romansh as their first language, in 1910 it was 63%, in 1941 it was 74% and in 1970 it had grown to 81%. Climate Sta. Maria in Val Müstair features a warm summer humid continental climate (Dfb) according to the Köppen climate classification. The town receives on average 95.6 days of rain per year totalling of precipitation. This relatively low level of precipitation is primarily due to its central location inside the Alps. The wettest month is August during which time Sta. Maria receives on average of precipitation. During this month there is precipitation for an average of 11.0 days. The driest month of the year is February with an average of of precipitation over 5.1 days. The wettest month is therefore nearly 5 times wetter than the driest one, making Sta. Maria one of the places with the largest seasonal precipitation variety in all of Switzerland, only behind Samedan in the neighbouring Engadin valley. Personalities Dario Cologna, cross-country skier References Val Müstair Former municipalities of Graubünden