Last updated: February 24, 2025
In January, Eugene, United States, experiences a diverse range of temperatures, with a maximum of 18°C (65°F) and a chilling minimum of -12°C (11°F), leading to an average temperature of 5°C (42°F). The month is marked by considerable precipitation, totaling 152 mm (6.0 in) across approximately 15 days, contributing to an overall humidity level of 84%. This combination of cool temperatures and wet conditions sets the tone for a distinctive winter atmosphere, perfect for those who appreciate the beauty and challenges of the season.
In Eugene, United States, January is characterized by its chilly embrace, with temperatures ranging from a biting -12°C (11°F) at night to a more temperate 18°C (65°F) by day. The average temperature settles at a brisk 5°C (42°F), highlighting the stark contrast between the frigid nights and moderately warm afternoons. As January transitions into February, we see a slight rise in temperatures, with minimums of -6°C (21°F) and daytime highs nudging up to 19°C (67°F), suggesting an early hint of spring is on the horizon. This gradual warming trend continues into March, where the average temperature increases to 7°C (45°F), paving the way for the milder and more inviting days of spring ahead. Overall, January marks a notable low point in the thermal cycle, emphasizing the cold grip of winter before the gradual thaw begins.
In January, Eugene experiences a significant amount of rainfall, with 152 mm (6.0 in) spread over 15 days, marking the start of a wet season that typically peaks in the winter months. This precipitation pattern sets the tone for February, which sees even more rain at 197 mm (7.7 in), featuring the highest rainfall of the year. As the seasons transition into spring, March and April exhibit a gradual decline in both total rainfall and the number of rainy days, with 139 mm (5.5 in) and 134 mm (5.3 in) respectively. By summer, the contrast is stark: July and August showcase a dramatic drop to just 2 mm (0.1 in) and 5 mm (0.2 in), highlighting a shift towards drier conditions. This cyclical trend not only emphasizes Eugene’s distinctly wet winters but also its dry, warm summers, a characteristic that shapes the region's diverse ecosystems and lifestyles.
In January, Eugene experiences a notably high humidity level of 84%, setting the tone for a generally moist winter season. As the month progresses into February, humidity rises slightly to 85%, and continues to climb to 86% by March, highlighting the peak of the dampness typical for this time of year. Following this, humidity begins to taper off in the spring, dropping to 83% in both April and May, and maintaining that steady level into June. The summer months bring a noticeable shift, with humidity levels falling to 78% in July and plunging further to 67% by August. This trend of decreasing humidity continues into early fall, with September reaching 66% before slightly rising again in October at 77%. As the year concludes, November and December see a return to the wetter conditions, both sitting at 87%, characteristic of Eugene’s cool, damp winter climate. Overall, this data reflects a clear seasonal pattern, with winter and early spring marked by high humidity, while summer months are notably drier.
In Eugene, January offers a relatively mild UV Index of 2, categorized as low, which means that you can enjoy about 45 minutes of unprotected sun exposure before risking skin damage. As the months progress, the UV Index gradually increases, reaching moderate levels in February and peaking at very high levels during the summer months of May through August. This trend highlights the importance of being mindful of sun safety as you transition from the tranquil winter to the sun-drenched days of summer. By December, the UV Index drops back to 2, allowing for safer sun exposure once again. To plan your outdoor activities accordingly, you can find more details about UV levels throughout the year at Eugene UV Index.
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In Eugene, January starts with a modest 98 hours of sunshine, but as the year progresses, the warmth of the sun becomes increasingly apparent. By February, sunshine hours climb to 126, setting the stage for a brightening landscape. March sees a significant leap to 201 hours, heralding the arrival of spring. The trend continues through the spring months, with April basking in 236 hours and May almost doubling January's total at 303 hours. The summer months truly shine, peaking in July with an impressive 394 hours of sunlight. As the year transitions into fall, the sunshine gradually diminishes, with September offering 281 hours, and October bringing in 226 hours. By November and December, the days shorten significantly, resulting in just 149 and 122 hours of sunshine, respectively. This annual cycle reflects the transformation of Eugene’s climate—from the chill of winter to the sun-soaked vibrancy of summer, illustrating a clear trend of increasing brightness leading into the warmer months before retreating as the year closes.
In Eugene, January is typically one of the cloudiest months, with only a 17% chance of sunny weather. This sets the stage for a gradual transition to brighter days as the year progresses; by March, the likelihood of sunshine nearly doubles to 40%, heralding the arrival of spring. The trend continues to rise steeply, peaking in the summer months of July and August, where residents enjoy 84% and 70% chances of sunshine, respectively. Overall, while January may be draped in grey skies, the promise of sunnier days is just around the corner, as Eugene's weather shifts dramatically as winter fades into spring and summer.
In Eugene, Oregon, January ushers in 9 hours of daylight, marking the start of a gradual increase that continues through the winter months. As February arrives, daylight extends to 10 hours, signaling the transition toward spring. By March, the light stretches further to 11 hours, paving the way for a remarkable leap into April's 13 hours. This upward trend peaks in the summer, with June and July enjoying a generous 15 hours of sunlight, perfect for outdoor activities. As August fades into autumn, daylight begins to wane, dropping to 13 hours, and continues its descent, settling back to 10 hours in October. The cycle completes with November and December, returning to a meager 9 hours and 8 hours respectively, reminding us that even in the depths of winter, the rhythm of daylight is a constant companion in Eugene's seasonal dance.
In Eugene, Oregon, January ushers in a gentle breeze with an average wind speed of 2.2 m/s (5 mph), slightly lower than the subsequent month of February, which sees a marginal increase to 2.3 m/s. This mild fluctuation sets the tone for early spring, where March experiences a slight dip to 1.9 m/s before settling back around 2.0 m/s in April. As the seasons transition, wind speeds remain consistent at 2.1 m/s from May through October, suggesting a period of stability. Interestingly, December marks a notable uptick at 2.4 m/s, creating a peaceful yet invigorating wind that encapsulates winter's charm. Overall, the trend reflects a relatively calm wind environment, perfect for enjoying Eugene's breathtaking landscapes throughout the year.
The weather in Eugene 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 Eugene and find detailed weather information for every month.
In January, temperatures feature a minimum of -12°C (11°F) and a maximum of 18°C (65°F), with an average of 5°C (42°F). The month experiences substantial precipitation at 152 mm (6.0 in) over 15 days, coupled with a humidity level of 84%. In contrast, February sees slightly milder temperatures with a minimum of -6°C (21°F) and a maximum of 19°C (67°F), while maintaining the same average of 5°C (41°F). Precipitation increases to 197 mm (7.7 in) over 18 rainy days, and humidity rises slightly to 85%. For more detailed insights, check out Eugene weather in February.
In January, temperatures can drop as low as -12°C (11°F), with a relatively mild average of 5°C (42°F) and a maximum of 18°C (65°F). The month is characterized by significant precipitation, totaling 152 mm (6.0 in) over about 15 days, with an average humidity of 84%. In contrast, March brings slightly warmer conditions, with minimum temperatures of -7°C (20°F), an average of 7°C (45°F), and a peak of 23°C (74°F). Precipitation decreases slightly to 139 mm (5.5 in), occurring over 16 days, while humidity rises modestly to 86%. For more detailed insights, you can check out Eugene weather in March.
In comparison to January, April experiences a notable rise in temperatures, with averages climbing from 5°C (42°F) to 10°C (50°F). While January can plunge to a frigid minimum of -12°C (11°F), April's lowest temperature is a milder -2°C (29°F). Both months feature significant precipitation, though January sees slightly more at 152 mm (6.0 in) compared to April's 134 mm (5.3 in), with rainfall spread across 15 days in January and 14 days in April. Humidity levels remain relatively consistent, with January at 84% and April slightly lower at 83%. For a more detailed look at the weather in April, you can check out Eugene weather in April.
In January, the weather is markedly colder, with temperatures ranging from a frigid -12°C (11°F) to a milder 18°C (65°F), and an average of 5°C (42°F). The month sees considerable precipitation, totaling 152 mm (6.0 in) over about 15 days, coupled with high humidity at 84%. In contrast, May experiences a significant warming trend, with temperatures ranging from 1°C (34°F) to a pleasant 29°C (85°F), and an average of 13°C (57°F). Rainfall in May is notably less, at 62 mm (2.5 in) over 9 days, and while humidity remains similar at 83%, the overall feel of the month is much drier and more comfortable. For more detailed insights, you can check Eugene weather in May.
In January, the weather is notably colder, with temperatures ranging from a chilling minimum of -12°C (11°F) to a more moderate maximum of 18°C (65°F), accompanied by significant precipitation of 152 mm (6.0 in) spread over 15 days and high humidity of 84%. In contrast, June brings warmer temperatures, featuring a minimum of 5°C (42°F) and a much higher maximum of 44°C (111°F). The average temperature in June rises to 17°C (63°F), and the month sees much less rain, with only 41 mm (1.6 in) of precipitation over just 6 days, while humidity remains relatively stable at 83%. For more details on the June climate, check out Eugene weather in June.
January and July present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -12°C (11°F) and average around 5°C (42°F), with highs reaching up to 18°C (65°F). The month is also characterized by considerable precipitation, totaling 152 mm (6.0 in) over 15 days, and high humidity at 84%. In contrast, July offers a much milder climate, where temperatures range from a minimum of 7°C (45°F) to a maximum of 37°C (99°F), with a comfortable average of 20°C (69°F). Remarkably, July experiences minimal precipitation, just 2 mm (0.1 in) over the entire month and boasts no rainy days, accompanied by a slightly lower humidity of 78%. For more details on the warm July climate, visit Eugene weather in July.
In January, the weather is predominantly cold, with temperatures ranging from a chilly -12°C (11°F) to a relatively mild 18°C (65°F), and an average temperature of 5°C (42°F). The month is characterized by high humidity at 84% and considerable precipitation, with around 152 mm (6.0 in) falling over about 15 days. In stark contrast, August offers a warm and dry climate, marked by temperatures that swing from a minimum of 7°C (44°F) to a scorching maximum of 40°C (104°F), with an average of 21°C (69°F). Precipitation is minimal, with only 5 mm (0.2 in) recorded over just one day, and humidity dips to 67%. For a closer look at how the weather in August unfolds, explore Eugene weather in August.
Comparing the weather in January and September reveals distinct seasonal contrasts. In January, temperatures can plunge to a minimum of -12°C (11°F), with an average around 5°C (42°F) and a maximum of 18°C (65°F). The month is also characterized by high humidity at 84% and significant precipitation, totaling 152 mm (6.0 in) over 15 days. In contrast, September experiences milder weather, with minimum temperatures at 4°C (39°F) and a comfortable average of 17°C (63°F). The maximum can soar to 37°C (98°F) on warmer days, while precipitation drops to 76 mm (3.0 in) spread over only 6 days, and humidity decreases to 66%. For a closer look at what to expect during this month, check out Eugene weather in September.
January and October exhibit striking differences in weather patterns. In January, temperatures can dip as low as -12°C (11°F) and peak at 18°C (65°F), with an average of 5°C (42°F). The month experiences considerable precipitation, totaling 152 mm (6.0 in) over 15 days, paired with a high humidity level of 84%. In stark contrast, October boasts a more moderate temperature range, with minimums of -4°C (25°F) and maximums reaching 28°C (82°F), averaging around 11°C (53°F). Precipitation is also lower at 99 mm (3.9 in) over 10 days, and humidity drops to 77%. For a closer look at what to expect, check out Eugene weather in October.
In comparing January and November weather, January tends to be colder, with average temperatures ranging from a minimum of -12°C (11°F) to a maximum of 18°C (65°F), while November sees milder averages, from -6°C (22°F) to 21°C (70°F). Both months experience significant precipitation, with January receiving about 152 mm (6.0 in) over 15 days, slightly more than November’s 141 mm (5.6 in) over 14 days. Additionally, humidity levels are higher in November at 87%, compared to January's 84%. For a more detailed look, check out the specifics on Eugene weather in November.
January and December exhibit similar average temperatures, hovering around 5°C (41°F), but January experiences slightly colder minimum temperatures, dropping to -12°C (11°F) compared to December's minimum of -6°C (21°F). Precipitation levels are fairly high in both months, with January receiving 152 mm (6.0 in) over 15 days, while December surpasses this with 180 mm (7.1 in) across 18 days. Humidity levels are also a bit higher in December at 87%, compared to January's 84%. For more insights into December weather specifics, you can visit Eugene weather in December.
January in Eugene presents a stark contrast to the milder months, characterized by its refreshingly chilly temperatures and a higher degree of humidity at 84%. While the winter weather can feel crisp and invigorating, it is also marked by regular precipitation, with around 15 days of rain. As the month progresses, the maximum temperatures hover around a cool 18°C (65°F) during the day but can plummet to a brisk -12°C (11°F) at night, showcasing the true range of winter's chill. This blend of conditions contributes to January's unique character within Eugene's climate. For a deeper dive into the city's weather patterns, visit Eugene Climate.