Houston Weather in March
United States · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
March in Houston sees average temperatures ranging from a low of 13.8°C (56.8°F) to a high of 23.1°C (73.6°F), with a mean of 18.2°C (64.8°F). Compared to the annual average of 21.3°C (70.3°F), this month is 3.1°C cooler than the yearly norm. Precipitation averages 120.8mm, making it approximately 41.0mm drier than the monthly average of 162.0mm. The city receives an average of 7.7 hours of sunshine per day during March, with relative humidity averaging 76.8%. Wind speeds reach an average maximum of 24.2 km/h. For travelers, this month offers a temperature experience in Houston, with drier-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in Houston, accept that humidity is the third dimension of every weather reading. I ran Buffalo Bayou Park in May at 7am: 24°C but 90% humidity, like jogging through warm soup. June-September is genuinely oppressive — 34°C with 75% humidity, heat index pushing 40°C. Best outdoor windows: March-April and October-November, 22-26°C with manageable humidity. Hurricane season (August-September) can disrupt everything. Winter is mild but unpredictable — I once did a January bike ride in 25°C, then a February one in 5°C. Always check radar; Gulf storms intensify fast.
March vs Adjacent Months
| Metric | February | March | April |
|---|---|---|---|
| Mean Temp | 13.2°C (55.8°F) | 18.2°C (64.8°F) | 20.9°C (69.6°F) |
| Rainfall | 82.6mm | 120.8mm | 174.5mm |
| Sunshine | 7.0 hrs | 7.7 hrs | 8.5 hrs |
| Humidity | 76.4% | 76.8% | 75.8% |
| Wind | 23.2 km/h | 24.2 km/h | 24.0 km/h |
| Rainy Days | 15.2 | 19.6 | 19.8 |
| Snowfall | 1.0 cm | 0.0 cm | 0.0 cm |
Seasonal Context
March falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Houston in March, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Houston in March?
The average temperature in Houston during March ranges from 13.8°C (56.8°F) to 23.1°C (73.6°F), with a mean of 18.2°C (64.8°F).
How much does it rain in Houston in March?
Houston receives an average of 120.8mm of precipitation in March, spread across approximately 19.6 rainy days.
What should I pack for Houston in March?
Based on March weather data, pack layers including light jackets and t-shirts, plus an umbrella. Rain gear is essential — this month averages 120.8mm of precipitation.
Is March a good time to visit Houston?
March is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Houston
Cities with Similar March Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 29.76°, -95.37°. Timezone: America/Chicago. Last updated: 2026-07-30.