HMO meaning in Airport Code ?

Hermosillo (American Spanish: [eɾmoˈsiʝo] (listen)), formerly called Pitic (as in Santísima Trinidad del Pitic and Presidio del Pitic), is a city located in the center of the northwestern Mexican state of Sonora. It is the state's capital and largest city, as well as the primary economic center for the state and the region. As of 2015, the city has a population of 812,229, making it the 16th largest city in Mexico. The recent increase in the city's population is due to expanded industrialization, especially within the automotive industry.

Hermosillo was ranked as one of the five best cities to live in, in Mexico, as published in the study "The Most Livable Cities of Mexico 2013" by the Strategic Communications Cabinet of the Mexican Federal Government. Hermosillo is also ranked as the seventh most competitive city in the country according to the Mexican Institute for Competitiveness (IMCO), based on factors such as its economic diversification, geographical location, access to education, government, innovation and international relations, according to the urban combativity analysis released by that institution in 2016. The major manufacturing sector has the production of automobiles since the 1980s.

Hermosillo has a subtropical hot desert climate (BWh). Temperatures have been as high as 49.5 °C (121.1 °F) in the summer months, making it one of the hottest cities in the country.