Last updated: June 24, 2025
In March, the average temperature in Houston, United States hovers around 2°C (36°F), with a notable range from a chilly -25°C (-12°F) to a warm 21°C (69°F). Expect approximately 60 mm (2.4 in) of precipitation spread over 8 days, and prepare for heightened moisture with an average humidity of 84%.
In March in Houston, the average temperature is 2°C (36°F), with maximums reaching up to 21°C (69°F) and minimums plummeting to as low as -25°C (-12°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and cold conditions.
In Houston in March, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.
In Houston in March, humidity is 84%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while traveling.
In Houston in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Houston.
UV Risk Categories
Weather in Houston varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Houston, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 37 mm (1.4 inches) | 84% | moderate |
| February Weather | -6°C (21°F) | 50 mm (2.0 inches) | 85% | moderate |
| March Weather | 2°C (36°F) | 60 mm (2.4 inches) | 84% | moderate |
| April Weather | 7°C (45°F) | 86 mm (3.4 inches) | 83% | very high |
| May Weather | 15°C (60°F) | 150 mm (5.9 inches) | 75% | very high |
| June Weather | 22°C (71°F) | 146 mm (5.7 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 105 mm (4.1 inches) | 75% | very high |
| August Weather | 21°C (71°F) | 116 mm (4.6 inches) | 69% | very high |
| September Weather | 18°C (65°F) | 119 mm (4.7 inches) | 74% | very high |
| October Weather | 10°C (50°F) | 125 mm (4.9 inches) | 79% | moderate |
| November Weather | 2°C (35°F) | 54 mm (2.1 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 42 mm (1.6 inches) | 82% | low |