Boston Weather in March
United States · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
March in Boston sees average temperatures ranging from a low of -0.6°C (30.9°F) to a high of 9.3°C (48.7°F), with a mean of 4.3°C (39.7°F). Compared to the annual average of 11.2°C (52.2°F), this month is 6.9°C cooler than the yearly norm. Precipitation averages 114.7mm, making it approximately 13.0mm wetter than the monthly average of 102.0mm. The city receives an average of 8.1 hours of sunshine per day during March, with relative humidity averaging 66.8%. Wind speeds reach an average maximum of 23.3 km/h. Snowfall averages 9.0cm during March, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Boston, with wetter-than-average conditions compared to the rest of the year.
Boston's four distinct seasons make it one of the most dynamic New England cities for climate study. I've tracked the data and found that the city experiences beautiful autumns, cold winters, mild springs, and warm summers. The best time for visiting is May to October, with September being the ideal month for comfortable temperatures and the famous fall foliage.
March vs Adjacent Months
| Metric | February | March | April |
|---|---|---|---|
| Mean Temp | -0.0°C (32.0°F) | 4.3°C (39.7°F) | 8.4°C (47.1°F) |
| Rainfall | 74.9mm | 114.7mm | 98.6mm |
| Sunshine | 6.6 hrs | 8.1 hrs | 8.5 hrs |
| Humidity | 69.1% | 66.8% | 68.8% |
| Wind | 21.9 km/h | 23.3 km/h | 23.5 km/h |
| Rainy Days | 8.8 | 14.0 | 15.0 |
| Snowfall | 20.0 cm | 9.0 cm | 4.0 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 Boston 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 Boston in March?
The average temperature in Boston during March ranges from -0.6°C (30.9°F) to 9.3°C (48.7°F), with a mean of 4.3°C (39.7°F).
How much does it rain in Boston in March?
Boston receives an average of 114.7mm of precipitation in March, spread across approximately 14.0 rainy days.
What should I pack for Boston in March?
Based on March weather data, pack heavy winter clothing, thermal layers, and a warm coat. Rain gear is essential — this month averages 114.7mm of precipitation.
Is March a good time to visit Boston?
March is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Boston
Cities with Similar March Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 42.36°, -71.06°. Timezone: America/New_York. Last updated: 2026-07-30.