McAllen lies only about 121 feet above sea level on irrigated Valley farmland, with more than 22 inches of rain a year and summer highs near 100. Warm weather and water nearby mean insects stay active for most of the calendar.
McAllen is Hidalgo County's largest city, with 142,210 residents in the 2020 census. It stands at 121 feet, with its limits reaching the Rio Grande opposite Reynosa. The railroad arrived in 1904, the townsite company formed that December and the city was incorporated in 1911. By then farmers were growing cotton, alfalfa, citrus, grapes and figs.
Rain averages 22.31 inches a year, and September is the wettest month at 4.74 inches. June through August stay above 100 degrees most days, while January nights average 52.7 degrees. The Valley sits on a migratory flyway, and McAllen runs Quinta Mazatlan, its wing of the World Birding Center. Homeowners, companies and sellers in the city can all book Precision Pest Control.