McAllen experiences mild winters, with temperatures rarely dropping below 0°C in January and February, but averaging around 16-14°C. As spring approaches, temperatures rise gradually, reaching averages of 24°C by April and 26°C by May. Summers are warm, but not extremely hot, with July and August temperatures averaging around 28°C. Autumn brings a slight cooling trend, with October temperatures averaging 25°C before dropping to around 19°C in November. Winters then return, with December temperatures averaging around 21°C.