Last updated: June 18, 2025
In March, the average temperature in Houston, Canada hovers around -3°C (27°F), with a stark range of temperatures reaching a minimum of -25°C (-12°F) and peaking at 13°C (55°F). This chilly month also brings about 57 mm (2.3 in) of precipitation over 12 days, contributing to a notably high average humidity of 93%. Get ready for a season of frosty air and frequent drizzles!
In March in Houston, the average temperature is -3°C (27°F). Maximum temperatures can reach 13°C (55°F), while minimums can drop to as low as -25°C (-12°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.
In Houston in March, the precipitation amount is 57 mm (2.3 in) over a period of 12 days.
In Houston in March humidity is 93%. With an average temperature of -3°C (27°F), this humidity feels like a damp chill that seeps through your clothes, making travel uncomfortable and forcing you to bundle up against the biting cold while navigating the wet conditions.
In Houston in March, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Houston for better planning.
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 | -8°C (17°F) | 78 mm (3.1 inches) | 96% | low |
| February Weather | -9°C (16°F) | 57 mm (2.2 inches) | 94% | low |
| March Weather | -3°C (27°F) | 57 mm (2.3 inches) | 93% | moderate |
| April Weather | 1°C (34°F) | 40 mm (1.6 inches) | 91% | moderate |
| May Weather | 8°C (46°F) | 64 mm (2.5 inches) | 88% | high |
| June Weather | 11°C (52°F) | 68 mm (2.7 inches) | 84% | high |
| July Weather | 13°C (56°F) | 72 mm (2.8 inches) | 87% | very high |
| August Weather | 13°C (56°F) | 52 mm (2.1 inches) | 88% | high |
| September Weather | 8°C (48°F) | 93 mm (3.7 inches) | 91% | high |
| October Weather | 2°C (36°F) | 101 mm (4.0 inches) | 95% | moderate |
| November Weather | -2°C (29°F) | 117 mm (4.6 inches) | 98% | low |
| December Weather | -8°C (18°F) | 67 mm (2.6 inches) | 98% | low |