On Monday, December 31, 2018, the price of the dollar in Mexico was quoted at an average of: 1 Dollar = 19.4906 Pesos BUY19.0403 SELL19.9410 -0.0100 %-0.0025Dollar Price in Mexican Banks BUYSELL18.6519.9519.3020.1018.3019.7919.158719.558718.5019.9019.0020.3018.2520.0519.1019.9519.4520.0018.5019.9019.3020.3018.4020.0219.2020.20