Last updated: February 24, 2025
In March, Mill Valley, United States experiences a blend of mild temperatures and significant precipitation. Daily highs reach a comfortable 24°C (75°F), while the average temperature sits around 12°C (54°F), allowing for pleasant outdoor activities. However, the month also brings a notable minimum temperature of 4°C (39°F), underscoring the variability of spring weather. With 80 mm (3.1 in) of rain spread across 10 days, residents and visitors alike should prepare for potential showers amid the lush scenery. Coupled with a high humidity level of 82%, March in Mill Valley offers a quintessential experience of the transition from winter to spring, making it a captivating time to explore this vibrant locale.
As March unfolds in Mill Valley, temperatures begin to noticeably warm, heralding the arrival of spring. With a minimum of 4°C (39°F) and a maximum reaching 24°C (75°F), the month showcases a delightful average temperature of 12°C (54°F). This upward trend from the cooler months of January and February sets the stage for more pleasant days ahead. Whether it's enjoying outdoor activities as the weather brightens or simply relishing the mild temperatures, March serves as a gentle transition, inviting residents and visitors alike to embrace the season's blossoming energy. The gradual shift in climate not only enhances the landscape but also invigorates the community, creating a vibrant atmosphere as flowers begin to bloom and days grow longer.
In March, Mill Valley experiences a noticeable reduction in precipitation compared to the preceding months, with 80 mm (3.1 in) of rainfall recorded over 10 days. This drop follows a particularly wet January and February, which saw 111 mm (4.4 in) and 116 mm (4.6 in) respectively. The trend indicates that March acts as a transitional period, leading into the drier months of spring, highlighted by a significant decrease to just 35 mm (1.4 in) in April. As the region gradually shifts toward summer, the pattern of rainfall diminishes sharply, with the subsequent months showcasing minimal precipitation days and amounts, ultimately creating a distinct contrast to the earlier winter months. This seasonal progression not only shapes the landscape but also influences the ecological rhythms of Mill Valley.
In March, Mill Valley experiences a consistent humidity level of 82%, mirroring February's conditions. This slight decrease from January's peak of 85% suggests a gradual transition toward drier spring weather. As the month progresses, humidity tends to dip further, reaching 79% by April, indicating a shift in the atmosphere. Interestingly, the summer months see a rise again, with July and August experiencing heightened humidity levels of 87%. The overall trend highlights Mill Valley's seasonal rhythm, where early spring brings moderate moisture before summer's lush, humid embrace.
As March arrives in Mill Valley, the UV Index sees a noticeable jump to 8, categorizing exposure as very high, which significantly reduces safe unprotected sun exposure to just 15 minutes. This shift marks a dramatic increase compared to the earlier months of January and February, where the UV Index was a moderate 3 and 5, respectively, allowing for lengthy burn times of up to 30 minutes. With the arrival of spring, residents and visitors alike must be vigilant about sun safety, as the trend continues toward even higher UV levels in the coming months. To stay informed and protect your skin, check out the detailed UV Index for Mill Valley at Mill Valley UV Index.
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As March unfolds in Mill Valley, the transition from winter to spring is beautifully illuminated by an impressive 263 hours of sunshine. This marked increase from February’s 215 hours signals the approach of brighter days. The trend continues to rise as the season progresses, with April boasting 299 hours and May reaching an outstanding 356 hours. This steady climb highlights Mill Valley's blossoming atmosphere, where longer, sunnier days invite both residents and visitors to fully embrace the beauty of nature. Enjoy these sun-drenched moments, as they set the stage for the glorious summer ahead.
As March unfolds in Mill Valley, the likelihood of sunny weather significantly rises to 63%, marking a notable increase from both January and February. This upward trend hints at the arrival of spring, where sunlight becomes more abundant, paving the way for even sunnier days in April and May. The gradual shift from winter's gloom to a vibrant and cheerful atmosphere becomes evident as the chances of clear skies continue to climb, reaching a peak of 75% in May. This pattern not only invites outdoor activities but also sets the stage for enjoyable experiences under the sun as the season progresses.
As March arrives in Mill Valley, daylight begins to stretch delightfully, offering 11 hours of sunlight—a notable increase from 10 hours in February. This trend of lengthening days marks the transition into spring, signaling a time of renewal and outdoor exploration. Following the upward trajectory, April further brightens the landscape with 13 hours of daylight, igniting a sense of anticipation for the vibrant months to come. This gradual increase from the depths of winter not only uplifts spirits but also invites residents to bask in the growing warmth and longer evenings, making March a pivotal month of change and promise.
As March arrives in Mill Valley, the gentle stirrings of spring are accompanied by a noticeable increase in wind speed, with averages reaching 3.6 m/s (8 mph). This marks a subtle but upward trend from February's 3.4 m/s (8 mph), hinting at the shifting seasons. Following the brisk pace set in March, April sees winds further picking up to 4.1 m/s (9 mph), foreshadowing the gusty breezes that typically characterize the area as summer approaches. The month serves as a transitional period where the briskness of winter gives way to the warmer breezes of spring, making it an invigorating time for outdoor activities. The gradual ascension of wind speeds throughout these early months signals a vibrant shift, as Mill Valley prepares for the dynamic weather patterns of the coming seasons.
The weather in Mill Valley 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 Mill Valley and find detailed weather information for every month.
When comparing the weather in March and January, March generally offers warmer temperatures, with an average of 12°C (54°F) compared to January's average of 10°C (51°F). The minimum temperature in March is slightly higher at 4°C (39°F), while January can dip to 0°C (33°F). However, January tends to see more precipitation, totaling 111 mm (4.4 in) over 8 days, compared to March's 80 mm (3.1 in) across 10 days. Humidity levels are also relatively similar, with March at 82% and January at 85%. For a more detailed look, check out Mill Valley weather in January.
Comparing the weather in March and February reveals some notable differences. In March, temperatures range from a minimum of 4°C (39°F) to a maximum of 24°C (75°F), with an average of 12°C (54°F), which shows a slight increase compared to February’s range of 2°C (35°F) to 23°C (73°F) and an average of 11°C (52°F). Precipitation is lower in March at 80 mm (3.1 inches) over 10 days, while February experiences 116 mm (4.6 inches) of rain over just 8 days. Both months share a humidity level of 82%, indicating a consistent moisture level in the air. For more detailed information, check out Mill Valley weather in February.
March experiences a range of temperatures from a minimum of 4°C (39°F) to a maximum of 24°C (75°F), with an average temperature around 12°C (54°F). It also sees a considerable amount of rainfall, with about 80 mm (3.1 in) of precipitation over ten days, contributing to a relatively high humidity of 82%.
In contrast, April shows a slight increase in average temperatures, rising to 14°C (57°F) with a maximum of 28°C (83°F) while maintaining the same minimum of 4°C (40°F). Precipitation drops significantly to 35 mm (1.4 in) over just five days, resulting in a slight decrease in humidity to 79%. For more specific details on the weather conditions, you can check Mill Valley weather in April.
In March, the weather is characterized by a broader temperature range, with minimums dipping to 4°C (39°F) and maximums reaching up to 24°C (75°F). There's a significant amount of rainfall, averaging about 80 mm (3.1 in) over 10 days, contributing to a humid atmosphere with an 82% humidity level. In contrast, May brings warmer temperatures, with minimums around 7°C (45°F) and maximums soaring to 30°C (86°F). The precipitation declines sharply to just 20 mm (0.8 in) over only 2 days, while humidity remains relatively high at 83%. This shift indicates a transition from the cool, wet conditions of March to the warm, drier days typical of May. For more insights on May weather, you can check Mill Valley weather in May.
In March, the weather is characterized by a wider temperature range, with minimums of 4°C (39°F) and maximums reaching 24°C (75°F), creating an average temperature of 12°C (54°F). This month experiences significant precipitation, totaling 80 mm (3.1 in) over about 10 days, alongside relatively high humidity levels at 82%. In contrast, June brings warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 32°C (90°F), averaging 17°C (63°F). Notably, June is remarkably dry, with only 2 mm (0.1 in) of precipitation and no rainy days, while humidity remains slightly higher at 84%. For more detailed information, visit Mill Valley weather in June.
March weather is characterized by a wider temperature range, with minimums dropping to 4°C (39°F) and maximums reaching up to 24°C (75°F). This month also sees considerable precipitation, averaging 80 mm (3.1 in) over about 10 days, resulting in a humidity level of 82%. In contrast, July is warmer and drier, with minimum temperatures of 11°C (52°F) and maximums soaring to 30°C (87°F). Remarkably, July experiences virtually no rainfall, with only 2 mm (0.1 in) of precipitation, and a slightly higher humidity of 87%. To learn more about specific weather conditions, check out Mill Valley weather in July.
In March, temperatures typically range from a chilly minimum of 4°C (39°F) to a pleasant maximum of 24°C (75°F), with an average temperature of 12°C (54°F). The month is marked by considerable precipitation, averaging 80 mm (3.1 in) over about 10 days, coupled with a humidity level of 82%. In contrast, August boasts warmer temperatures, with lows around 11°C (52°F) and highs reaching up to 32°C (90°F), averaging 18°C (64°F). Unlike March, August experiences minimal precipitation of just 1 mm (0.1 in) over the course of the month, with humidity slightly higher at 87%. For more detailed information, check out Mill Valley weather in August.
When comparing the weather in March and September, notable differences emerge. March experiences cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 24°C (75°F), while September boasts warmer temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (98°F). Precipitation levels also contrast significantly, as March averages 80 mm (3.1 in) over 10 rainy days, while September is remarkably dry, with merely 2 mm (0.1 in) and no recorded rainy days. Additionally, humidity levels are fairly similar, with March at 82% compared to September's 86%. For more detailed information, visit Mill Valley weather in September.
March and October present distinct weather patterns, making each month unique in its own right. In March, temperatures range from a minimum of 4°C (39°F) to a maximum of 24°C (75°F), with an average of 12°C (54°F). This month experiences significant rainfall, totaling 80 mm (3.1 in) over about 10 days, accompanied by relatively high humidity at 82%. In contrast, October sees slightly milder conditions, with minimum temperatures of 6°C (44°F) and maximums reaching 31°C (88°F), leading to a higher average of 16°C (62°F). Rainfall is considerably lower in October, with only 30 mm (1.2 in) spread across just 2 days, and humidity remains relatively stable at 80%. For more details on October's climate, you can refer to Mill Valley weather in October.
March and November offer mild temperatures with some similarities and differences in their weather patterns. In March, the temperatures range from a minimum of 4°C (39°F) to a maximum of 24°C (75°F), with an average of 12°C (54°F). The month sees relatively higher precipitation, totaling 80 mm (3.1 in) over about 10 days, along with a higher humidity level at 82%. In contrast, November features a slightly lower temperature range, with a minimum of 3°C (37°F) and a maximum of 25°C (77°F), resulting in an average of 13°C (55°F). Additionally, it experiences less rainfall, measuring 48 mm (1.9 in) over just 5 days, and slightly lower humidity at 79%. For more detailed insights, check Mill Valley weather in November.
March weather is generally milder with an average temperature of 12°C (54°F) and a maximum that can reach up to 24°C (75°F). In contrast, December tends to be cooler, with an average temperature of 10°C (51°F) and a maximum of 22°C (72°F). Both months experience a fair amount of precipitation, but December sees slightly more at 98 mm (3.9 in) over 9 days, compared to March's 80 mm (3.1 in) spread over 10 days. Humidity levels are also comparable, with March at 82% and December a bit lower at 79%. For a more detailed look at what to expect, visit Mill Valley weather in December.
March in Mill Valley heralds the arrival of spring, showcasing a dynamic shift in weather that contrasts sharply with the preceding winter months. With sunny days becoming more frequent and temperatures gradually rising, residents and visitors alike enjoy mild conditions that invite outdoor exploration. While the average temperature is a comfortable 12°C, the highlight is the occasional peak to 24°C, symbolizing the transition from the cooler depths of winter. However, the month is not without its share of rainfall; an average of 80 mm over approximately 10 days ensures the lush landscape remains vibrant and green. Coupled with humidity levels around 82%, March provides a refreshing reprieve from the dryness often associated with the summer months. For a deeper understanding of the weather patterns in Mill Valley, explore more at Mill Valley Climate.