Last updated: June 24, 2025
In McAllen, United States, the average temperature in January hovers around 16°C (62°F), offering a comfortably mild experience. However, be prepared for temperature fluctuations, as it can dip to a brisk -1°C (31°F) or soar to a warm 34°C (94°F). Rainfall is moderate, with 20 mm (0.8 in) of precipitation expected over about 4 days. Visitors can anticipate a high average humidity of 83%, adding a touch of tropical warmth to the atmosphere.
In January in McAllen, the average temperature is 16°C (62°F). Maximum temperatures can reach up to 34°C (94°F), while minimums can drop as low as -1°C (31°F). This variability in weather conditions makes McAllen an ideal destination for travelers seeking a diverse climate experience.
In McAllen in January, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.
In McAllen in January humidity is 83%. With an average temperature of 16°C (62°F), this humidity feels like a warm, sticky embrace that can make traveling feel a bit heavy, leaving you longing for refreshing breezes and shaded spots to relax in.
In McAllen in January, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in McAllen, you can refer to this Hourly UV Index in McAllen.
UV Risk Categories
Weather in McAllen varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in McAllen, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 16°C (62°F) | 20 mm (0.8 inches) | 83% | high |
February Weather | 18°C (65°F) | 21 mm (0.8 inches) | 79% | very high |
March Weather | 22°C (72°F) | 31 mm (1.2 inches) | 76% | very high |
April Weather | 25°C (78°F) | 31 mm (1.2 inches) | 77% | extreme |
May Weather | 28°C (83°F) | 87 mm (3.4 inches) | 80% | extreme |
June Weather | 30°C (86°F) | 81 mm (3.2 inches) | 73% | extreme |
July Weather | 30°C (87°F) | 100 mm (3.9 inches) | 66% | extreme |
August Weather | 31°C (88°F) | 22 mm (0.9 inches) | 65% | extreme |
September Weather | 29°C (84°F) | 96 mm (3.8 inches) | 73% | extreme |
October Weather | 25°C (77°F) | 51 mm (2.0 inches) | 76% | very high |
November Weather | 20°C (69°F) | 30 mm (1.2 inches) | 80% | high |
December Weather | 18°C (64°F) | 21 mm (0.8 inches) | 86% | high |