Last updated: April 22, 2025
In January, Cornwall, Canada, experiences a dramatic range of temperatures, with maximums soaring to 14°C (58°F) contrasted by chilling lows that can plunge to -20°C (-3°F). The average temperature hovers around -5°C (23°F), providing a crisp winter environment. This month sees 81 mm (3.2 in) of precipitation over about 10 days, contributing to the region's cool, damp climate, while high humidity levels at 84% add a bite to the cold air. Whether you're enjoying the frosty scenery or bracing against the chill, January offers a unique charm to Cornwall.
In January, Cornwall, Canada, experiences a harsh winter chill, with minimum temperatures plunging to a frigid -20°C (-3°F), often making residents bundle up for the season. The average temperature sits at a brisk -5°C (23°F), not far from the maximum of 14°C (58°F), which offers a brief respite from the cold. As the months progress into February, the temperatures remain similarly cold, with minima and averages holding steady. However, by March, a slight thaw is noticeable, as the average creeps to -2°C (28°F)—a harbinger of spring on the horizon. The following months, particularly April and May, showcase a dramatic shift, with temperatures rising steadily, eventually reaching 24°C (76°F) by May. This trend of warming continues through the summer, indicating Cornwall's transition from the deep winter chills of January to a vibrant, inviting warmth by late spring, highlighting the region’s distinct seasonal contrast.
In January, Cornwall experiences a precipitation total of 81 mm (3.2 in), spread over approximately 10 days. This marks the month as one of the cooler periods, as it typically paves the way for a wetter season ahead. As February arrives, rainfall increases slightly to 93 mm (3.7 in), with more frequent downpours over 12 days. Interestingly, February and March tend to have elevated precipitation levels compared to the chilly winter months, suggesting a transitional phase leading into the spring. Overall, January's precipitation sets the stage for a pattern of increasing moisture, reflecting how Cornwall’s climate subtly shifts and prepares for the brimming showers of the months to come.
In January, Cornwall, Canada, experiences a notable humidity level of 84%, setting the stage for a consistently damp winter atmosphere. This month is mirrored by February, maintaining the same humidity level before a slight uptick in March and April, where humidity rises to 86%. As spring progresses into summer, levels fluctuate, peaking at 87% in August. Following this brief spike, the humidity dips again to 82% in June, yet maintains a steady course through the fall and winter months, settling back to 84% by December. Overall, Cornwall's humidity tends to hover around the mid-80s, creating a characteristic moist climate throughout the year, with the summer months seeing a slight increase, emphasizing the region’s dynamic yet stable weather patterns.
In January, Cornwall, Canada experiences a low UV Index of 2, which means sun exposure is minimal, allowing individuals to enjoy outdoor activities with a comfortable burn time of 45 minutes. As winter transitions into spring, the UV levels gradually rise, reaching a moderate Index of 3 in February and climbing to 5 by March. This trend continues into the warmer months, peaking at a striking 10 in June. The July and August months maintain a very high Index of 8, emphasizing the importance of sun protection during the summer. Notably, as autumn approaches, the UV Index begins to decline, showcasing a return to moderate levels in October and November, before dropping back to low in December. For detailed insights into UV exposure throughout the year, check out Cornwall UV Index.
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January in Cornwall, Canada, kicks off the year with a modest 98 hours of sunshine, setting the stage for a gradual increase as winter gives way to spring. February brings a noticeable lift to 170 hours, signaling the sun’s returning strength. As the months progress, March and April continue this upward trend, boasting 228 and 243 hours respectively, showcasing the blossoming warmth. By May, sunshine peaks at 295 hours, marking the vibrant arrival of summer. The months of June through August enjoy their sunniest days, with July and August shining the brightest at 341 and 351 hours. As autumn approaches, sunshine begins to wane; September enjoys 271 hours before falling to 220 hours in October. The year winds down with shorter, cloudier days in November and December, offering 143 and 123 hours respectively. This rhythmic ebb and flow of sunshine perfectly embodies Cornwall's seasonal shifts, inviting residents and visitors alike to revel in the beauty of its changing landscapes.
In Cornwall, Canada, January ushers in the challenges of winter, with a mere 16% chance of sunny weather. This marks the lowest likelihood of sunshine within the year, significantly lower than the 27% seen in February, signaling a gradual but noticeable shift toward brighter days in the months that follow. As spring approaches, the sun's presence becomes increasingly reliable, peaking in March with a 45% chance of clear skies. Overall, the data reveals a compelling trend: after January's dismal odds, the likelihood of sunny weather improves steadily, offering a welcomed reprieve as the year progresses.
In Cornwall, Canada, January marks the beginning of a gradual increase in daylight, with just 9 hours of sunlight that invites the lingering winter chill. As the month of February arrives, days become brighter, allowing 10 hours of daylight to brighten the cold landscape. The trend continues into March, where daylight stretches to 11 hours, introducing the first hints of spring. By April, days extend to a generous 13 hours, and by May, Cornwall basks in 14 hours of sunlight, showcasing nature's rebirth. The longest days arrive in June and July, each with 15 hours of daylight, perfect for enjoying the vibrant outdoor lifestyle. However, as summer gives way to autumn, daylight begins to wane, decreasing to 12 hours in September, 10 hours in October, and back to 9 hours by November. The cycle completes itself in December, where daylight dwindles to just 8 hours, closing the year on a reflective note as winter settles in once more. This rhythmic dance of daylight not only shapes the seasons but also enriches the cultural and outdoor activities that characterize life in Cornwall.
As the New Year dawns in Cornwall, Canada, January ushers in a brisk average wind speed of 5.3 m/s (12 mph), setting the stage for a dynamic winter season. This initial gustiness gradually escalates in February, where winds pick up to 5.7 m/s (13 mph), peaking again in the vibrant month of March at 6.2 m/s (14 mph). Following this windy trio of months, April witnesses a slight dip back to 5.6 m/s, hinting at the transition to milder spring breezes. Interestingly, the trend shows a gentle decline towards the summer months, with July and August experiencing the calmest winds of 4.7 m/s (11 mph) and 4.6 m/s (10 mph), respectively. However, as autumn approaches, wind speeds pick up once more, culminating in November’s breezy 5.8 m/s and December’s return to the winter highs of 6.2 m/s. This rhythmic dance of winds throughout the year highlights Cornwall's unique climate, inviting both adventurers and nature lovers to embrace its seasonal changes.
The weather in Cornwall changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January'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.
January and February exhibit similar temperatures, with both months recording minimums around -20°C and average temperatures close to -5°C. However, February tends to be slightly cooler with a maximum temperature of 9°C, compared to January's 14°C. Precipitation increases throughout February, with 93 mm falling over 12 days, compared to January's 81 mm over 10 days, contributing to sustained humidity levels of 84% in both months. For more detailed information, visit Cornwall weather in February.
In January, the weather is significantly colder, with average temperatures around -5°C (23°F) and a maximum of 14°C (58°F), while March sees a slight improvement with average temperatures rising to -2°C (28°F) and a maximum of 11°C (53°F). Both months experience comparable amounts of precipitation, with January recording 81 mm (3.2 in) over 10 days and March slightly lower at 75 mm (2.9 in) over 13 days. Additionally, humidity remains high in both months, at 84% in January and 86% in March, contributing to a chilly atmosphere. For a closer look at the weather specifics, you can check out Cornwall weather in March.
In January, the weather is significantly colder, with temperatures ranging from a minimum of -20°C (-3°F) to a maximum of 14°C (58°F) and an average of -5°C (23°F). The month experiences a total precipitation of 81 mm (3.2 in) over 10 days, while humidity is relatively high at 84%. In contrast, April sees a marked warming trend, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 18°C (65°F) and an average of 4°C (39°F). The precipitation slightly increases to 85 mm (3.4 in) over 12 days, and humidity remains similar at 86%. For more details on how the weather transitions in April, you can check Cornwall weather in April.
In January, the weather is typically frigid, with temperatures plunging to a minimum of -20°C (-3°F) and an average of -5°C (23°F). The month sees about 81 mm (3.2 in) of precipitation over 10 days, along with a high humidity of 84%. In contrast, May brings a significant warming trend, with temperatures ranging from a minimum of -3°C (27°F) to a comfortable maximum of 24°C (76°F) and an average of 9°C (49°F). While May has slightly higher precipitation at 88 mm (3.5 in) over 13 days, the humidity remains comparable at 85%. For more detailed insights into this transition in weather, check out Cornwall weather in May.
In January, temperatures can plummet to a minimum of -20°C (-3°F) with an average of -5°C (23°F) and a maximum reaching only 14°C (58°F). The month is characterized by high humidity at 84% and experiences about 81 mm (3.2 in) of precipitation over 10 days. In stark contrast, June brings milder conditions, featuring a minimum temperature of 0°C (33°F), an average of 15°C (60°F), and maxima soaring up to 29°C (84°F). Although slightly more precipitation is recorded at 97 mm (3.8 in) over 12 days, humidity decreases slightly to 82%. For a deeper dive into what to expect, you can check out Cornwall weather in June.
The weather in January and July presents a striking contrast. In January, temperatures can plummet to a minimum of -20°C (-3°F), with an average of -5°C (23°F) and a maximum reaching only 14°C (58°F). This cold month also sees significant precipitation, averaging 81 mm over about 10 days, coupled with high humidity at 84%. In sharp contrast, July enjoys milder conditions with a minimum temperature of 11°C (52°F), an average of 20°C (67°F), and a maximum that can soar to 30°C (85°F). Although it experiences slightly less precipitation at 68 mm over the same number of days, the humidity remains nearly the same at 86%. For more details on the warm July climate, visit Cornwall weather in July.
In January, the weather is quite frigid, with temperatures ranging from a minimum of -20°C (-3°F) to a maximum of 14°C (58°F), and an average of -5°C (23°F). This month sees a significant amount of precipitation at 81 mm (3.2 in) over 10 days, accompanied by high humidity at 84%. In stark contrast, August offers a much milder climate with temperatures that range from a minimum of 11°C (51°F) to a maximum of 30°C (86°F), with an average temperature of 20°C (68°F). Precipitation in August is slightly lower at 73 mm (2.9 in), also over 10 days, although the humidity remains high at 87%. For more detailed information, check out Cornwall weather in August.
In January, temperatures can plunge to a chilling minimum of -20°C (-3°F), with an average of -5°C (23°F) and a maximum of 14°C (58°F). The month also brings significant precipitation, averaging 81 mm (3.2 in) over approximately 10 days, while the humidity hovers around 84%. In contrast, September boasts much milder conditions, where the temperature ranges from a minimum of 3°C (38°F) to an average of 16°C (61°F) and peaks at 27°C (82°F). Although September experiences slightly more precipitation at 96 mm (3.8 in) over the same number of days, the humidity remains similar at 85%. For more detailed information about September weather, you can check Cornwall weather in September.
In January, temperatures can plummet to a chilling minimum of -20°C (-3°F), with an average of -5°C (23°F) and a maximum reaching only 14°C (58°F). The month is marked by significant precipitation of 81 mm (3.2 in) over about 10 days, accompanied by high humidity levels around 84%. In contrast, October offers a more mild climate, with temperatures ranging from a minimum of -2°C (29°F) to a pleasantly warm average of 10°C (50°F) and a high of 24°C (75°F). Although October experiences slightly less precipitation at 77 mm (3.0 in) across 11 days, the humidity remains comparable at 85%. For a detailed look at the October weather in Cornwall, you can visit Cornwall weather in October.
January and November offer contrasting weather experiences. In January, temperatures are notably lower, with an average of -5°C (23°F) and a minimum of -20°C (-3°F), while November presents a milder climate with an average temperature of 4°C (39°F) and a minimum of -12°C (10°F). Precipitation levels are also different; January sees 81 mm (3.2 in) over 10 days, whereas November has higher precipitation at 135 mm (5.3 in) across 15 days. Both months exhibit high humidity levels, with January at 84% and November slightly higher at 85%. For more detailed information on November weather in Cornwall, check out Cornwall weather in November.
In comparing the weather of January and December, both months exhibit cold temperatures with a similar maximum of 14°C (58°F). However, January experiences slightly cooler average temperatures, with an average of -5°C (23°F) compared to December’s -2°C (29°F). Precipitation levels are also noteworthy; January sees 81 mm (3.2 in) over 10 days, while December has higher precipitation at 97 mm (3.8 in) across 13 days. Interestingly, both months maintain consistent humidity levels of 84%. For more detailed information about December weather, you can visit Cornwall weather in December.
As January rolls in, Cornwall experiences a distinct shift in weather compared to the rest of the year. With temperatures plummeting and an average chill settling in, this winter month brings a unique blend of crisp days and frosty nights. While precipitation is not unheard of, the frequent rain and humidity contribute to an atmosphere that feels starkly different from the warmer, drier months ahead. The notable cold can make January the coldest and most humid time of the year, inviting locals and visitors alike to bundle up and embrace the serene beauty of winter. For a deeper understanding of Cornwall's weather patterns, check out Cornwall Climate.