The Argentina Missionary Training Center (MTC) was one of the first international MTCs established by the Church. In October 1985, just three months before the dedication of the Buenos Aires Temple by President Thomas S. Monson (then Second Counselor in the First Presidency), the Centro de Entrenamiento de Misioneros (CEM) de Argentina (the Missionary Training Center of Argentina) first opened. It was housed in an unused chapel in the Mejia district of Buenos Aires and trained approximately 20 Spanish-speaking missionaries every three weeks.
Because of the success of the CEM, plans were finalized to construct a larger and more specialized facility on the extra land surrounding the Buenos Aires Temple. In March of 1994, Elder Joseph B. Wirthlin of the Quorum of the Twelve Apostles dedicated a new CEM building that housed more than 80 missionaries, and shortly thereafter, the name was changed to the Centro de Capacitación Misional (CCM). With the larger facility, the number of missionaries attending increased to over 500 per year.
In September 2008, the training program was expanded to include Spanish language instruction. English-speaking missionaries assigned to either of the two Uruguay missions would travel directly to the Argentina MTC and receive their training in the Spanish language before going to their missions.
The Argentina MTC was recently remodeled and now houses more than 90 missionaries, approximately 40% of which are English-speaking missionaries learning Spanish to serve in the missions of both Uruguay and Paraguay. The MTC president oversees the missionaries and is supported by a permanent staff of eight full-time employees plus 16 to 20 part-time teachers. The teachers have been selected from among the best returned missionaries available.
If you will be at the MTC during the summer months (December to March), expect weather to be hot and humid, with average daily temperatures in the 80s (around 28°C). During spring (September to November) and autumn (April to June), temperatures can vary widely and weather can change unexpectedly, but most days are pleasant. The winter months (July and August) are relatively mild, with average temperatures in the low 50s (around 11°C), but the humidity can make the air feel quite cold. Occasional frosts occur, but snow is almost unheard of. Rain falls frequently throughout the year, averaging 45 inches annually.
Encyclopædia Britannica Online, s. v. "Buenos Aires," accessed June 25, 2012.