McAllen

What is the climate like in McAllen?

The best time to visit McAllen is typically October – April, with trip comfort peaking in February (8.4/10). McAllen is warmest in August, when daily highs average 99°F (37°C), and coolest in January, when lows fall to about 53°F (12°C). The wettest month is typically September and the driest is February; the year sees roughly 22 in (551 mm) of precipitation.

• Best time to visitOctober – April — comfort peaks in February (8.4/10)
• Warmest monthAugust — average high 99°F (37°C)
• Coolest monthJanuary — average low 53°F (12°C)
• Wettest monthSeptember (3.2 in (82 mm))
• Driest monthFebruary (0.8 in (19 mm))
• Annual precipitation22 in (551 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromMcallen, 2 km away (1941-2026)