Last updated: February 24, 2025
January in Sisters, United States, reveals a dynamic weather pattern. With a striking maximum temperature of 14°C (57°F) and a chilling minimum of -24°C (-11°F), the month showcases a diverse climate landscape, resulting in an average temperature of 0°C (33°F). The region experiences a substantial precipitation total of 93 mm (3.7 in) over 13 days, contributing to an impressive humidity level of 86% that adds a crispness to the winter air. This blend of temperatures and moisture creates a unique atmosphere in Sisters, perfect for winter enthusiasts and nature lovers alike.
In Sisters, Oregon, January is characterized by chilly temperatures, featuring a minimum that can plummet to a brisk -24°C (-11°F), while the day often brings an average of 0°C (33°F) and peaks at a mild 14°C (57°F). This trend of cold continues into February, with similar averages, but a slight rise in maximum temperatures hints at the approaching spring. As winter transitions to spring in March and April, we witness a gradual warming, with March's highs reaching 19°C (67°F) and April soaring to 28°C (83°F). The temperatures continue to climb into the summer months, where July and August consistently peak around 37°C (99°F). This trend signifies a significant seasonal transition, moving from harsh winters to warm, sunny days, and illustrates Sisters' climate diversity, making it a unique spot for all seasons.
In January, Sisters, United States, experiences a significant precipitation total of 93 mm (3.7 in) over approximately 13 days, marking the month as one of the wetter periods of the year. This amount is closely mirrored in December, suggesting a consistent winter pattern. As winter transitions into spring, February sees an increase in rainfall, reaching 109 mm (4.3 in), the highest for the season, followed by a notable drop in March to 66 mm (2.6 in). The precipitation trend reveals a decrease through late spring and summer, with July and August experiencing a mere 6 mm (0.3 in) and 8 mm (0.3 in), respectively, indicating a sharp decline. Overall, the winter months robustly supply the region with moisture, paving the way for a drier, sunnier summer ahead.
In January, the humidity in Sisters, United States, reaches a notable 86%, setting the tone for a particularly moist winter season. This level of humidity stays fairly consistent, with only a slight increase to 87% in February before returning to 86% in March. As the months progress towards spring, humidity begins to decline gradually, dipping to 85% in April and further decreasing to 80% by May. June and July continue this trend, showcasing a more comfortable atmosphere with 82% and 78% humidity, respectively. However, August brings a significant drop to 62%, signaling the start of drier conditions that persist into early autumn, where September sees humidity at a low 59%. As the year draws to a close, humidity levels rise again, with 78% in October, reaching 88% by November and December. This cyclical pattern underlines a clear seasonal rhythm, where humidity peaks in winter and late autumn, while settling into comfortable ranges during the summer months.
In January, residents of Sisters, Oregon, experience a moderate UV Index of 3, with a burn time of about 30 minutes under direct sunlight. This trend of moderate exposure continues into February, with the index slightly increasing to 4. As spring approaches in March, the UV intensity rises to 6, marking the transition towards higher sun exposure, with burn time decreasing to 25 minutes. By April, the UV Index escalates to 8, categorized as very high, and requires caution, with burn time dropping to just 15 minutes. The peak arrives in May, where the extreme UV Index of 11 necessitates vigilance, allowing only 10 minutes of unprotected sun exposure. This intensity holds through the summer months, before gradually tapering off in September and beyond, leading to more moderate levels again by November. For ongoing updates on UV levels throughout the year, check the detailed information at Sisters UV Index.
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In Sisters, United States, January brings a modest 108 hours of sunshine, setting the stage for a gradual increase as winter transitions into spring. By February, sunlight rises to 146 hours, a sign that brighter days are on the horizon. As the months progress, sunlight peaks in June with a stunning 365 hours, marking the height of summer. However, the sun doesn’t disappear entirely after July's peak—August still welcomes a generous 367 hours. The trend shifts into autumn, where the daylight dips to 293 hours in September, before continuing its descent through October and November, with 242 and 168 hours, respectively. By December, 144 hours remind residents of the winter’s embrace, making the cycle of sunlight in Sisters a captivating rhythm of the seasons.
In Sisters, United States, January typically embraces a modest 21% chance of sunny weather, signaling the heart of winter when overcast skies often reign. As the months progress, the likelihood of sunshine steadily increases, reaching 23% in February and skyrocketing to 46% by March. This upward trend continues through the spring, with April and May offering 59% and 49% chances, respectively, hinting at the gradual retreat of winter's chill. By summer, the sun shines almost confidently, peaking in July at a remarkable 83%. This pattern underscores a clear transition from winter's grey to the vibrant, sun-soaked days of summer, making January a time for cozy indoors rather than basking in bright sunlight.
In Sisters, United States, January marks the beginning of the year with 9 hours of daylight, a time when the days are still short and winter’s chill lingers. As the calendar progresses into February, the daylight begins to extend, reaching 10 hours and hinting at the impending arrival of spring. By March, days grow even longer, basking in 11 hours of light, and this trend continues through the vibrant month of May, when daylight peaks at a generous 14 hours. The height of summer in June and July offers the maximum daylight of 15 hours, creating long, sun-soaked days perfect for outdoor adventures. However, as the seasons turn, a gentle decline in daylight begins. August sees a drop to 13 hours, leading into autumn where September offers 12 hours, before the days shorten again in October and November, settling back to 9 hours by the end of the year. This rhythmic cycle of daylight in Sisters highlights the beautiful transition of the seasons, fostering a deep connection to nature’s ebb and flow.
In January, the wind in Sisters, United States, averages a gentle 2.4 m/s (5 mph), creating a serene atmosphere that welcomes winter's embrace. As the month slips into February, winds pick up slightly to 3.2 m/s (7 mph), hinting at the transition to spring. This uptick is short-lived, as March brings winds back down to 2.5 m/s (6 mph), indicating a return to the calmer conditions typical of winter. The trend continues with a slight rise in April and May, maintaining breezy yet manageable speeds. Interestingly, as the summer months approach, July and August witness a gradual decline, with average winds dropping to 2.2 m/s (5 mph) and 2.3 m/s (5 mph), reflecting a seasonal lull in wind activity. The transition into autumn sees a slight recovery in October and November, but ultimately, the air remains relatively calm, offering a peaceful backdrop to the region's stunning landscapes. Overall, January's wind speed sets a tranquil tone that ebbs and flows throughout the year, revealing the dynamic yet gentle embrace of Sisters' climate.
The weather in Sisters 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 Sisters and find detailed weather information for every month.
In comparing the weather between January and February, both months maintain a similar average temperature of around 0°C (33°F), but February experiences slightly milder extremes with a maximum of 17°C (62°F) compared to January's 14°C (57°F). The minimum temperatures are slightly higher in February, with lows reaching -22°C (-7°F) versus -24°C (-11°F) in January. February also sees increased precipitation, totaling 109 mm (4.3 in) over 15 days, compared to January's 93 mm (3.7 in) across 13 days. Humidity remains quite high in both months, with February at 87% and January at 86%. For more details on the climate specifics, you can check Sisters weather in February.
January and March exhibit notable differences in weather patterns, despite both months sharing a high humidity level of 86%. In January, temperatures can drop to a minimum of -24°C (-11°F), with an average of around 0°C (33°F) and a maximum of 14°C (57°F). Precipitation is also relatively high, totaling 93 mm (3.7 in) over 13 days. In contrast, March sees a milder climate, with minimum temperatures around -15°C (5°F), an average of 3°C (38°F), and a maximum of 19°C (67°F). Precipitation decreases to 66 mm (2.6 in) over the same number of days. For those interested in learning more about specific weather patterns in March, additional information can be found at Sisters weather in March.
January weather is characterized by much colder temperatures, with average highs reaching only about 0°C (33°F) and lows plummeting to -24°C (-11°F). The month sees considerable precipitation, totaling 93 mm (3.7 in) over approximately 13 days, alongside high humidity levels at 86%. In contrast, April brings milder conditions, with average temperatures rising to 7°C (45°F) and reaching maximums of up to 28°C (83°F). While it experiences less precipitation at 67 mm (2.6 in) and about 11 days of rainfall, humidity remains relatively consistent at 85%. For a detailed look at what to expect during this spring month, check out Sisters weather in April.
January and May present starkly contrasting weather patterns. In January, temperatures can plummet to a chilling minimum of -24°C (-11°F), with an average around 0°C (33°F) and a maximum of 14°C (57°F). The month also experiences significant precipitation of 93 mm (3.7 in) over 13 days, alongside high humidity levels at 86%. In comparison, May sees much milder conditions, with temperatures ranging from a minimum of -5°C (23°F) to a pleasant maximum of 31°C (88°F) and an average of 12°C (53°F). Precipitation significantly decreases to 37 mm (1.5 in) spread across just 8 days, and humidity drops slightly to 80%. For more details about the pleasant weather in May, you can check Sisters weather in May.
January and June offer starkly contrasting weather conditions. In January, temperatures can plummet to a minimum of -24°C (-11°F) and typically hover around an average of 0°C (33°F), with highs reaching 14°C (57°F). This chilly month experiences significant precipitation, totaling 93 mm (3.7 in) across 13 days, and maintains a high humidity level of 86%.
In contrast, June brings warmer temperatures, with lows at 0°C (32°F) and average highs reaching a pleasant 16°C (61°F), peaking at an impressive 42°C (108°F) during heatwaves. Precipitation is minimal, with only 22 mm (0.9 in) recorded over 6 days, and humidity slightly lower at 82%. For a detailed look at the weather in June, check out Sisters weather in June.
In January, temperatures can plummet to a minimum of -24°C (-11°F), with an average temperature hovering around 0°C (33°F) and reaching a maximum of 14°C (57°F). This month also experiences significant precipitation, with 93 mm (3.7 in) falling over 13 days, leading to a high humidity level of 86%. In stark contrast, July boasts a much milder climate, with temperatures ranging from a minimum of 0°C (33°F) to an average of 20°C (69°F), peaking at a sweltering 37°C (99°F). This summer month is characterized by minimal precipitation of just 6 mm (0.3 in) across a single day, while the humidity drops to 78%. For a closer look at the weather in July, you can explore Sisters weather in July.
In January, the weather is characterized by frigid temperatures, with minimums dropping to -24°C (-11°F) and average highs only reaching about 14°C (57°F). The month also sees considerable precipitation, with 93 mm (3.7 in) spread across 13 days and a high humidity level of 86%. In stark contrast, August offers a much warmer climate, with temperatures ranging from a minimum of 0°C (33°F) to an average of 20°C (68°F) and maximums soaring up to 37°C (100°F). Additionally, August is significantly drier, receiving only 8 mm (0.3 in) of precipitation over just 2 days, along with a lower humidity level of 62%. For more detailed insights, you can explore Sisters weather in August.
January weather is defined by its harsh cold, with temperatures ranging from a frigid -24°C (-11°F) to a maximum of 14°C (57°F) and an average of around 0°C (33°F). During this month, precipitation is relatively high at 93 mm (3.7 in), falling on 13 days, accompanied by a humidity level of 86%, which can make the air feel even colder. In stark contrast, September presents a more temperate climate, with temperatures fluctuating from a minimum of -3°C (26°F) to a warm maximum of 37°C (99°F), averaging about 15°C (59°F). Precipitation in September drops significantly to 36 mm (1.4 in) over just 5 days, and the humidity decreases to a comfortable 59%. To learn more about the weather in Sisters during September, check out this link: Sisters weather in September.
January and October present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -24°C (-11°F), while averaging around 0°C (33°F) and reaching a maximum of 14°C (57°F). The month sees significant precipitation, averaging 93 mm (3.7 inches) over approximately 13 days, accompanied by high humidity at 86%.
In contrast, October experiences milder temperatures, with a minimum of -9°C (16°F) and an average of 8°C (47°F), peaking at a pleasant 30°C (87°F). The month is drier, with only 43 mm (1.7 inches) of precipitation spread over about 7 days, and humidity levels are lower at 78%. For more information, you can check Sisters weather in October.
January and November present notably different weather patterns. In January, temperatures can plunge to a minimum of -24°C (-11°F), with an average of around 0°C (33°F) and a maximum of 14°C (57°F). The month sees significant precipitation, totaling 93 mm (3.7 in) over 13 days, coupled with high humidity at 86%. In contrast, November experiences milder conditions, with a minimum of -18°C (0°F) and an average temperature of 3°C (38°F), peaking at 22°C (71°F). Precipitation is less frequent, amounting to 74 mm (2.9 in) across 11 days, and humidity remains high at 88%. For more detailed insights, check out Sisters weather in November.
January and December share similar average temperatures, both hovering around 0°C (33°F), but January tends to be slightly cooler overall. In January, the minimum temperature can plummet to -24°C (-11°F), compared to December's minimum of -19°C (-2°F). Precipitation levels remain consistent between the two months, with January experiencing 93 mm (3.7 in) over 13 days and December recording 93 mm (3.7 in) over 14 days. Humidity levels also show only a minor difference, with January at 86% and December at 88%. For more insights into December weather, check out Sisters weather in December.
January in Sisters is a month of stark contrasts, showcasing the region's chilly beauty amid its varied climate. With temperatures fluctuating from icy lows to the rare milder days, this month stands out with its distinct chill that is more pronounced compared to the rest of the year. Precipitation is frequent, with over a week of rain or snow contributing to the winter landscape. The high humidity adds to the brisk feel, making January both a challenging yet invigorating time to experience the great outdoors. For more on what to expect throughout the year, visit Sisters Climate.