Last updated: April 22, 2025
In March, Cornwall, Canada experiences a transition as winter begins to yield to spring. The maximum temperature reaches a pleasant 11°C (53°F), while the average settles at a chilly -2°C (28°F), dipping as low as -19°C (-2°F) at night. With 75 mm (2.9 in) of precipitation over 13 days, residents can expect a mix of rain and lingering snow. The air remains notably humid at 86%, contributing to a dampness that characterizes early spring in this region. As the days gradually warm, Cornwall's landscape starts to awaken from its winter slumber.
In March, Cornwall, Canada begins to shake off the depths of winter, with temperatures gradually climbing. The month sees minimums around -19°C (-2°F), providing a chilly start, but with daytime averages reaching a more manageable -2°C (28°F). As the days unfold, maximum temperatures flirt with 11°C (53°F), a gentle hint of spring that encourages the landscape to awaken. While still cold compared to later months, March marks a pivotal transition, bridging the harshness of winter with the promising warmth of the upcoming spring. This gradual rise in temperatures signals longer days and the slow return of vibrant life to the region.
March in Cornwall, Canada, brings a gentle transition in precipitation patterns as winter surrenders to spring. With 75 mm (2.9 in) of rain over 13 days, March sees a slight decrease from the wetter months of January and February, which recorded 81 mm (3.2 in) and 93 mm (3.7 in) respectively. This decrease in precipitation signals an easing of winter's grip, yet the consistency of rainy days suggests that the region remains under the influence of early spring weather systems. As the landscape begins to emerge from its winter slumber, Cornwall braces for the slightly wetter April, hinting at the rebirth of nature and the approach of warmer months ahead.
In March, Cornwall experiences a modest rise in humidity, reaching 86%—a slight uptick from the consistent 84% recorded in the preceding two months of January and February. This increase marks the beginning of a trend that continues into April, where humidity remains steady at 86%. As spring unfolds, the atmosphere begins to feel a touch more damp, with May seeing a slight dip to 85%. Overall, the early months of the year in Cornwall demonstrate a stable humidity pattern, characterized by high levels that peak in the later spring and summer months. The changing seasons bring nuanced shifts in moisture, laying the groundwork for the more humid conditions that define the summer.
As winter gives way to spring in Cornwall, Canada, March brings a noticeable increase in the UV Index, reaching a moderate level of 5. This uptick means that while sun exposure is safer than in the peak summer months, caution is still advisable, as the burn time is reduced to just 30 minutes. Such changes signify a shift towards sunnier days ahead, following January and February's low to moderate indices. As the months progress into April and May, Cornwall will see its UV Index climb to 7 and then 8, marking the onset of summer's very high UV levels. For more information on how the UV Index affects your outdoor activities, check out the detailed insights here: Cornwall UV Index.
UV Risk Categories
March in Cornwall, Canada, heralds the arrival of longer, sunnier days, with an impressive 228 hours of sunshine illuminating the landscape. This marks a significant increase from January's mere 98 hours and February's 170 hours, showcasing a clear upward trend as winter gives way to spring. As nature awakens, Cornwall basks in progressively brighter days, foreshadowing the delightful 243 hours of sunshine that April brings. This gradual increase not only lifts spirits but also invites outdoor adventures, setting the stage for the vibrant summer months ahead. With each passing month, the sunshine hours continue to climb, peaking in July and August, offering Cornish residents and visitors alike the perfect backdrop for enjoying the beauty of their surroundings.
As winter fades, **March in Cornwall, Canada, emerges with a promising 45% chance of sunny weather, marking a significant increase from January's bleak 16% and February's 27%. This upward trend signals the transition into spring, creating a refreshing contrast to the gloomier winter months. Following March, the chances of sunny days fluctuate throughout the season, peaking in August at 44% before dipping again in the autumn. Notably, March stands out as a month of optimism, inviting residents and visitors alike to embrace the improving weather and enjoy the awakening beauty of nature.
As March unfolds in Cornwall, Canada, residents experience a delightful increase in daylight, with an average of 11 hours gracing the skies. This marks a noticeable shift from the 10 hours seen in February, signaling the onset of spring and the gradual return of longer days. As sunlight begins to linger, the anticipation builds for the vibrant warmth of April, where daylight further extends to 13 hours. The pattern of increasing daylight continues through the spring months, contributing to a sense of renewal and a growing connection to the outdoors. As winter fades, each additional hour of daylight brings a rejuvenating energy, inviting residents to embrace the beauty of the season ahead.
As March rolls into Cornwall, Canada, it brings with it a noticeable increase in wind speed, reaching an average of 6.2 m/s (14 mph). This uptick from the previous months reflects winter's gradual retreat, ushering in the breezy promise of spring. Following January's gentle 5.3 m/s and February's slight bump to 5.7 m/s, March stands out as a turning point, hinting at the dynamic weather shifts to come. Although April experiences a minor dip back to 5.6 m/s, the windy patterns are a reminder of nature's ever-changing rhythm. Overall, March establishes a vibrant atmosphere in Cornwall, where the wind dances playfully, heralding the arrival of warmer days ahead.
The weather in Cornwall 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 Cornwall and find detailed weather information for every month.
March tends to be a bit milder than January, with average temperatures rising from January's cold minimum of -20°C (-3°F) to -19°C (-2°F) and an average of -5°C (23°F) compared to -2°C (28°F). While January can reach a maximum of 14°C (58°F), March often sees only a maximum of 11°C (53°F). In terms of precipitation, March has slightly less at 75 mm (2.9 in) over 13 days compared to January's 81 mm (3.2 in) over 10 days. The humidity remains fairly high in both months, hovering around 86% in March and 84% in January. For more detailed insights, you can check Cornwall weather in January.
March shows a slight warming trend compared to February, with average temperatures rising from -5°C (22°F) in February to -2°C (28°F). The minimum temperature in March is -19°C (2°F), just one degree warmer than February’s -20°C (-4°F). Rainfall also decreases slightly, with March receiving 75 mm (2.9 in) across 13 days, compared to February's 93 mm (3.7 in) over 12 days. Additionally, humidity is marginally higher in March at 86%, compared to 84% in February. For more detailed information, you can check Cornwall weather in February.
March and April showcase a distinct transition in weather conditions. In March, temperatures range from a chilly minimum of -19°C (-2°F) to a mild maximum of 11°C (53°F), with an average temperature lingering around -2°C (28°F). Precipitation is substantial at 75 mm (2.9 in), occurring over 13 days, while humidity remains high at 86%. In contrast, April experiences a notable warming, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 18°C (65°F) and an average temperature of 4°C (39°F). Although precipitation slightly increases to 85 mm (3.4 in) over 12 days, the overall feel of the month is decidedly milder. For more details on the weather trends, check out Cornwall weather in April.
March and May present a stark contrast in weather conditions. In March, temperatures can drop to a minimum of -19°C (-2°F) and usually hover around an average of -2°C (28°F), peaking at just 11°C (53°F). Meanwhile, May enjoys significantly warmer temperatures, with a minimum of -3°C (27°F), an average of 9°C (49°F), and a maximum that reaches a pleasant 24°C (76°F). Precipitation is slightly higher in May at 88 mm (3.5 in), similar to March's 75 mm (2.9 in), yet both months experience around 13 days of rain. Humidity remains quite consistent, with March at 86% and May at 85%. For more information on the delightful weather in May, you can check out Cornwall weather in May.
March and June present stark contrasts in weather conditions. In March, temperatures can plummet to a minimum of -19°C (-2°F) and average around -2°C (28°F), while June experiences a much milder range, with temperatures starting at a minimum of 0°C (33°F) and averaging 15°C (60°F). Rainfall is fairly consistent in both months, with March receiving 75 mm (2.9 in) over 13 days and June slightly wetter at 97 mm (3.8 in) across 12 days. Humidity is relatively high in both months, though March’s 86% contrasts with June’s 82%. For more details on June weather, check out Cornwall weather in June.
In March, temperatures can be quite chilly, with lows dipping to -19°C (−2°F) and a maximum of just 11°C (53°F), resulting in an average temperature of -2°C (28°F). The month is characterized by significant precipitation, totaling 75 mm (2.9 in) over 13 days, coupled with high humidity at 86%. In contrast, July offers a much warmer experience, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 30°C (85°F), averaging around 20°C (67°F). Precipitation is slightly lower at 68 mm (2.7 in) over 10 days, but the humidity remains consistent at 86%. For a detailed look at the pleasant conditions in Cornwall during July, visit Cornwall weather in July.
March and August present striking contrasts in weather conditions. In March, temperatures can drop to a chilling minimum of -19°C (−2°F), with an average of -2°C (28°F) and a maximum reaching only 11°C (53°F). The month experiences 75 mm (2.9 in) of precipitation over about 13 days, accompanied by high humidity levels averaging 86%. In stark contrast, August offers milder temperatures, ranging from a minimum of 11°C (51°F) to a pleasant average of 20°C (68°F) and a maximum of 30°C (86°F). This summer month sees a similar amount of precipitation—around 73 mm (2.9 in)—but over only 10 days, and the humidity remains fairly high at 87%. To learn more about August weather specifics, check out Cornwall weather in August.
In March, temperatures can be quite chilly, with a minimum of -19°C (–2°F) and an average near freezing at -2°C (28°F), while September experiences a more temperate climate with a minimum of 3°C (38°F) and an average of 16°C (61°F). The maximum temperatures in March peak at a relatively cool 11°C (53°F), whereas September can reach up to 27°C (82°F), providing warmer, more pleasant conditions. Precipitation is also notable, with March seeing 75 mm (2.9 in) over 13 days compared to September's 96 mm (3.8 in) across just 10 days, indicating a slightly wetter month. The humidity remains high in both months, at 86% in March and 85% in September, contributing to the overall feel of the seasons. For more detailed information, you can check Cornwall weather in September.
March and October exhibit notable differences in weather conditions. March is typically colder, with temperatures ranging from a minimum of -19°C (-2°F) to a maximum of 11°C (53°F), and it experiences high humidity at 86%. In contrast, October features milder weather, with temperatures varying from -2°C (29°F) to a warm 24°C (75°F). While both months receive similar amounts of precipitation—75 mm (2.9 in) in March and 77 mm (3.0 in) in October—March has more days of precipitation, occurring on 13 days versus 11 in October. For more detailed insights, check out Cornwall weather in October.
March and November exhibit distinct weather patterns that reflect the transition of seasons. In March, temperatures range from a minimum of -19°C (-2°F) to a maximum of 11°C (53°F), with an average of -2°C (28°F), accompanied by 75 mm (2.9 in) of precipitation over 13 days and high humidity at 86%. In contrast, November experiences milder temperatures with a minimum of -12°C (10°F) and a maximum of 20°C (68°F), averaging 4°C (39°F). The month sees increased precipitation, totaling 135 mm (5.3 in) across 15 days, while maintaining a slightly lower humidity at 85%. For more specific details on November weather, you can refer to Cornwall weather in November.
In March, temperatures in Cornwall range from a chilly minimum of -19°C (-2°F) to a mild maximum of 11°C (53°F), with an average temperature of -2°C (28°F). During this month, precipitation totals around 75 mm (2.9 in) over 13 days, accompanied by high humidity at 86%. In contrast, December sees slightly warmer max temperatures reaching up to 14°C (58°F) and maintains a similar average of -2°C (29°F). Precipitation is higher in December, totaling 97 mm (3.8 in) across the same number of rainy days, with slightly lower humidity at 84%. For more information, you can refer to Cornwall weather in December.
As March unfolds in Cornwall, the weather presents a distinct shift from the milder winter months. With temperatures gradually rising from the biting lows, the average climbs toward a more bearable range, yet lingering chilly days remind us that winter is not quite over. Precipitation is common, with nearly half of the month experiencing wet conditions, and the high humidity adds to the brisk air. This transitional month is characterized by a dynamic interplay of the last vestiges of winter and the anticipation of spring, making it a unique time to experience the evolving landscape. For a deeper understanding of what to expect throughout the seasons, explore the Cornwall Climate.