Last updated: February 24, 2025
In March, Boston experiences a dynamic transition from winter to spring, with temperatures ranging from a crisp -12°C (11°F) at night to a pleasant 20°C (68°F) during the day. The average temperature settles at around 3°C (38°F), providing a refreshing chill in the air. This month also sees considerable precipitation, accumulating to 102 mm (4.0 in) over approximately 10 days, contributing to a humidity level of 82% that may leave the air feeling quite damp. As the city shakes off the last remnants of winter, March in Boston is a month of contrasts, blending the lingering cold with the promise of warmer days ahead.
In March, Boston begins to shake off the chill of winter, with temperatures gradually warming as spring approaches. The month's average temperature rises to 3°C (38°F), a notable shift from the icy depths of January and February, while minimums hover around -12°C (11°F). March showcases temperatures peaking at 20°C (68°F), matching the warmth of the previous month, signaling a transition that brings a hint of the milder climate to come. As days lengthen and the sun begins to shine more brightly, Bostoners can look forward to increasingly pleasant weather, hinting at the vibrant blooms of April just around the corner.
March in Boston ushers in a notable uptick in precipitation, with an average of 102 mm (4.0 in) falling over 10 days. This slight increase from February's 97 mm (3.8 in) indicates a steady progression toward the spring thaw, as the city transitions from winter's chill. Interestingly, while March sees more rainfall than its predecessor, it still lays the groundwork for the significantly wetter April, which averages 135 mm (5.3 in) across 13 days. The gradual rise in precipitation hints at nature’s awakening, preparing Boston for the lushness of spring ahead.
In March, Boston experiences a slight decrease in humidity, dropping to 82% from February's 84%. This trend reflects a gradual shift as winter gives way to spring, showcasing a broader pattern of declining humidity levels as the year progresses. Following March, April sees further reduction to 80%, highlighting the transition towards drier months, which continue into late spring and summer. The steady decline from the high humidity of winter, peaking at 86% in January and steadily dropping through the following months, sets the stage for a more comfortable climate as the warmer seasons approach. This shift not only enhances outdoor activities but also symbolizes the arrival of fresher, rejuvenating breezes typical of the New England spring.
As March unfolds in Boston, the UV Index remains steady at 5, indicating a moderate exposure risk, similar to February. With a consistent burn time of 30 minutes, it's a great reminder to enjoy the early signs of spring while being mindful of sun exposure. This trend of moderate UV levels in the early months contrasts sharply with the significant increase anticipated in April, when the UV Index jumps to 8, marking the beginning of very high exposure risks. As the days grow longer and the sun's strength intensifies, keeping an eye on the Boston UV Index will be essential for safe sun enjoyment.
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As March arrives in Boston, the city awakens from its winter slumber, basking in a delightful 253 hours of sunshine—an inviting leap from February's 188 hours. This significant increase signals the beginning of longer, brighter days that gradually usher in the warmth of spring. As the month unfolds, residents can anticipate an upward trend in sunlight, leading to 240 hours in April and peaking at 289 hours in May. The growing hours of sunshine not only enhance the city's vibrant energy but also provide a refreshing contrast to the preceding months, illustrating the transition from the cold depths of winter to the blossoming beauty of spring.
March in Boston marks a notable turning point in the city's weather patterns, boasting a 61% chance of sunny days—the highest for the first half of the year. This increase from February's 32% highlights a welcoming shift as winter begins to wane. The trend is especially evident when March is compared to the preceding months, where the likelihood of sunshine dips significantly. As spring approaches, residents can look forward to more bright days, setting an optimistic tone for the months ahead. It's a refreshing contrast to the colder, cloudier spells of winter and hints at the vibrant bloom that accompanies the arrival of warmer weather.
As March unfolds in Boston, the city begins to awaken from the winter slumber with 11 hours of daylight, marking a steady ascend from the 10 hours of February. This gradual increase not only signals the arrival of spring but also invites residents to embrace outdoor activities as the days grow longer. Following the upward trajectory, April promises even more light with 13 hours, continuing the trend toward the sun-drenched days of summer. The pattern is unmistakable: with each passing month, the daylight hours stretch delightfully, paving the way for brighter afternoons and memorable experiences under the warming sun.
As March sweeps into Boston, residents can feel a refreshing shift in the air, with average wind speeds rising to 4.7 m/s (11 mph), a small but noticeable increase from the previous months. This energizing breeze not only signals the arrival of spring but also hints at the transition from winter's chill. January and February both had consistent wind speeds around 4.4 m/s and 4.3 m/s (10 mph), making March's gentle increase all the more invigorating. Following March, the winds begin to mellow into April and the warmer months ahead, with speeds tapering off to around 4.2 m/s (9 mph) in April and dropping further through the summer. This pattern illustrates a clear seasonal rhythm: a brisk start in early spring followed by the calm warmth of summer, perfectly embodying Boston's dynamic coastal climate.
The weather in Boston changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of March's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Boston and find detailed weather information for every month.
In comparison to January, March experiences milder temperatures, with an average of 3°C (38°F) compared to January's 0°C (32°F). While January sees colder minimum temperatures down to -19°C (-3°F), March's minimum can reach -12°C (11°F). Precipitation levels are slightly higher in March at 102 mm (4.0 in) over about 10 days, compared to January's 79 mm (3.1 in) over 9 days. Humidity also remains high in both months, but January is slightly more humid at 86%, compared to March's 82%. For more details on January weather, visit Boston weather in January.
March generally presents a milder climate compared to February, with average temperatures rising from 1°C (34°F) in February to 3°C (38°F) in March. While both months reach a high of 20°C (68°F), March starts to shed the colder extremes, experiencing a minimum temperature of -12°C (11°F) compared to February's lower minimum of -16°C (4°F). Precipitation levels are similar, with March seeing 102 mm (4.0 in) and February with 97 mm (3.8 in), and both months have about 10 days of rainfall. Humidity remains close between the two months, recorded at 82% in March and 84% in February. For more detailed insights on the climate, you can check Boston weather in February.
March and April present a noticeable shift in weather patterns. In March, temperatures range from a chilly -12°C (11°F) at night to a maximum of 20°C (68°F) during the day, with an average of 3°C (38°F). This month also sees considerable precipitation, totaling 102 mm (4.0 in) over 10 days, with an average humidity of 82%. By April, temperatures improve, with minimums around -2°C (28°F) and maximums reaching 27°C (81°F), averaging 9°C (48°F). However, April experiences slightly higher precipitation at 135 mm (5.3 in) across 13 days, and humidity levels drop to 80%. For more detailed insights into seasonal transitions, check out Boston weather in April.
March and May present distinctly different weather patterns. In March, temperatures can drop as low as -12°C (11°F), with an average of 3°C (38°F) and highs reaching 20°C (68°F). The month experiences significant precipitation, totaling 102 mm (4.0 in) over about 10 days, and a high humidity level of 82%. In contrast, May offers a more temperate climate, with minimum temperatures starting at 3°C (37°F) and an average of 14°C (58°F), peaking at a warm 31°C (89°F). While precipitation is slightly lower at 94 mm (3.7 in) over 12 days, the humidity drops to 72%, contributing to a more pleasant atmosphere. For more details, you can check out Boston weather in May.
March weather is characterized by a wide temperature range, starting from a chilly minimum of -12°C (11°F) and peaking at 20°C (68°F), with an average of 3°C (38°F). The month experiences significant precipitation, totaling 102 mm (4.0 in) over about 10 days, coupled with high humidity at 82%. In contrast, June offers a more temperate climate, with minimum temperatures at 8°C (47°F) and maximums reaching 33°C (92°F), averaging around 19°C (67°F). The precipitation is moderately lower at 86 mm (3.4 in) over the same number of days, and the humidity drops to 72%. For more detailed insights, check out Boston weather in June.
In March, temperatures can be quite chilly, with minimums dipping to -12°C (11°F) and an average of around 3°C (38°F). This month experiences a fair amount of precipitation, totaling 102 mm (4.0 in) over approximately 10 days, paired with high humidity at 82%. In contrast, July brings much warmer weather, with minimum temperatures of 14°C (57°F) and an average high of 23°C (73°F), peaking at 34°C (94°F). Although July has slightly more precipitation at 115 mm (4.5 in) over about 12 days, the humidity is significantly lower at 67%. For more details on the summer climate, check out Boston weather in July.
March and August present stark contrasts in weather conditions. In March, temperatures can dip as low as -12°C (11°F) with an average temperature of 3°C (38°F) and a maximum reaching 20°C (68°F). The month is characterized by significant precipitation, totaling 102 mm (4.0 in) over about 10 days, coupled with high humidity levels at 82%. In contrast, August brings a milder climate with minimum temperatures around 13°C (56°F) and average highs of 23°C (73°F) to a peak of 33°C (92°F). Although it still experiences about 10 days of rain, total precipitation is lower at 76 mm (3.0 in) and humidity drops to a more comfortable 66%. For a more detailed look at the weather in August, visit Boston weather in August.
March and September exhibit distinct weather patterns as the seasons transition from winter to fall. In March, temperatures can be quite chilly, ranging from a minimum of -12°C (11°F) to a maximum of 20°C (68°F), with an average of 3°C (38°F). The month is characterized by high humidity at 82% and considerable precipitation, totaling 102 mm (4.0 inches) over about 10 days. In contrast, September brings milder and more pleasant conditions, with temperatures ranging from a minimum of 7°C (46°F) to a high of 33°C (92°F), averaging around 19°C (67°F). The humidity decreases to 71%, and precipitation is slightly lower at 92 mm (3.6 inches) over just 8 days, making September more comfortable overall. For more details on September in Boston, you can check Boston weather in September.
March and October present notable contrasts in weather patterns. In March, temperatures can drop to a minimum of -12°C (11°F), with an average of 3°C (38°F) and a maximum of 20°C (68°F). This month also experiences a significant amount of precipitation, totaling 102 mm (4.0 in) over approximately 10 days, accompanied by high humidity at 82%. In contrast, October offers milder temperatures, with a minimum of 0°C (33°F), an average of 14°C (57°F), and a maximum of 27°C (81°F). It also sees increased rainfall, accumulating to 149 mm (5.9 in) over 12 days, though the humidity is slightly lower at 78%. For more information, check out Boston weather in October.
March and November exhibit noteworthy similarities and differences in their weather patterns. Both months experience a range of temperatures, with March showing a minimum of -12°C (11°F) and an average of 3°C (38°F), while November boasts a slightly higher average of 7°C (44°F) and a minimum of -10°C (14°F). In terms of maximum temperatures, March reaches up to 20°C (68°F), whereas November can warm up to 22°C (72°F). Precipitation levels are relatively consistent, with March receiving 102 mm (4.0 in) and November close behind at 100 mm (3.9 in), with both months experiencing precipitation on approximately 10 days. Humidity levels are similar as well, with March at 82% and November slightly higher at 84%. For more details on November weather, you can check out Boston weather in November.
In March, temperatures in Boston are slightly milder, with an average of 3°C (38°F) and a maximum reaching 20°C (68°F), compared to December's average of 2°C (36°F) with a high of 17°C (62°F). Both months experience similar levels of precipitation, with March receiving 102 mm (4.0 in) over 10 days and December slightly higher at 124 mm (4.9 in) across the same number of days. Humidity levels are quite comparable as well, with March at 82% and December at 81%. For a deeper look into the December climate, you can visit Boston weather in December.
As March unfolds in Boston, it brings a notable transition from the cold winter months, with temperatures beginning to rise and an average of 3°C. This month sees a curious blend of lingering chill and the anticipation of spring, marked by relatively high humidity levels of 82%. Precipitation becomes more frequent, with about 10 days of rain contributing to a total of 102 mm. While still bracing for the occasional cold snap, March is a reminder of the warmer days ahead, setting the stage for a vibrant spring season. For more details on how Boston's weather evolves, check out Boston Climate.