Last updated: February 24, 2025
In September, Silverton, United States experiences a diverse range of weather characterized by a maximum temperature of 22°C (72°F) and a minimum of -17°C (2°F), resulting in an average temperature of 8°C (47°F). The month is marked by 71 mm (2.8 in) of precipitation over approximately 11 days, alongside a relative humidity of 59%, creating a crisp and refreshing atmosphere. Whether you're enjoying the cool, brisk air or the gentle rainfall, Silverton's September weather offers a unique experience for locals and visitors alike.
In September, Silverton, United States transitions into the early whispers of autumn, marked by a notable cooling trend from the summer's warmth. The minimum temperatures dip to -17°C (2°F), providing a stark contrast to the milder summer months, while the average temperature settles at a crisp 8°C (47°F). With daytime highs reaching a comfortable 22°C (72°F), this month offers a pleasant retreat from the summer heat, inviting residents and visitors alike to enjoy the changing landscape. As the season shifts, September showcases not only a drop in temperatures but also a projection towards the colder months ahead, emphasizing the striking temperature contrasts that characterize Silverton's climate throughout the year.
In September, Silverton experiences a moderate precipitation total of 71 mm (2.8 in) over approximately 11 days, marking a slight decline from the previous month's 86 mm. This consistent rainfall is indicative of the transition from summer to fall, as the region begins to cool down following the intense summer rains, which peaked in July with a remarkable 190 mm (7.5 in). The lasting effects of summer moisture can still be felt, as September maintains a steady precipitation pattern, yet it falls short of the higher totals seen in the height of summer. With autumn on the horizon, residents can expect a gradual shift in weather patterns, as rainfall becomes a frequent backdrop to the beautiful changing leaves.
As summer fades, September in Silverton experiences a modest increase in humidity, settling at 59%. This rise marks a notable shift from the arid months of July and August, where humidity dipped to 36% and 44%, respectively. The gradual increase in moisture levels reflects the transitional nature of the season, bridging the dry warmth of summer and the cooler, more humid fall to come. Compared to the earlier months of the year, September feels relatively more comfortable than the chilly and damp conditions of winter, yet it remains drier than the peak of the wet season in late autumn. Overall, this month serves as a reminder of nature's cycles, hinting at the transformations ahead as the landscape readies itself for a richer, wetter tapestry.
In September, Silverton experiences an UV Index of 11, indicating extreme exposure levels and a burn time as brief as 10 minutes. This trend follows a summer of heightened UV activity, with the index peaking at 14 in June and July, then gradually tapering off. However, September still maintains a notably high UV Index, reflecting a continued need for sun protection. As fall approaches, residents and visitors should remain vigilant against overexposure, keeping sunscreen handy and seeking shade whenever possible. For detailed insights on UV exposure throughout the year, visit Silverton UV Index.
UV Risk Categories
As September arrives in Silverton, United States, the days still sparkle with an impressive 310 hours of sunshine, marking a gentle decline from the sun-soaked heights of summer. This month continues the trend of abundant sunlight that peaks in June and July, where residents basked in nearly 376 and 365 hours respectively. Following a summer of bright days, September’s sunshine begins to ease into autumn, reminiscent of May and August, both of which showcased extraordinary warmth with 362 and 352 hours respectively. As the season shifts, Silverton’s September offers a delightful balance of warmth and cooling breezes, creating a picturesque backdrop for outdoor adventures before the shorter days of autumn take over. The gradual dip in sunlight, culminating with October's 281 hours, hints at the changing rhythms of nature while leaving behind a legacy of golden-hued days.
As September rolls in, Silverton experiences a notable boost in sunshine, with a 66% chance of sunny weather. This trend marks a peak in the summer to fall transition, outshining the earlier summer months like July and August, which see lower sun probabilities at 46% and 63% respectively. Following the sunny highs, the month of September paves the way for the cloudier days of autumn, where the likelihood of sun dips in October to 54%. Overall, September stands out as a vibrant time in Silverton, inviting residents and visitors alike to relish the increasing warmth and sunshine before the cooler months set in.
As summer transitions into autumn, September in Silverton, United States, offers a delightful balance of daylight, with about 12 hours illuminating the day. This month's daylight is a dip from the 14-hour highs of June through August, hinting at the impending shorter days of fall. The gradual decrease from 14 hours to 13 hours in August and now to 12 hours in September reflects a subtle shift in the season, as nature prepares for the cooler months ahead. As daylight diminishes, it sets a stage for the vibrant colors of autumn leaves to emerge, inviting residents and visitors alike to enjoy the beauty of the changing landscape before winter approaches.
As September rolls in, the gentle breeze in Silverton reflects the tranquil transition into autumn. With an average wind speed of 1.9 m/s (4 mph), September shares a calm demeanor similar to the preceding month of August. This slight consistency in wind patterns hints at the slower, more serene pace of late summer, providing a backdrop for pleasant outdoor activities. The winds will soon begin to pick up slightly as October approaches, promising a gradual return to the familiar, brisk gusts of earlier months. Overall, September’s breezy ambiance invites residents and visitors alike to enjoy the fading warmth of the year while preparing for the refreshing change ahead.
The weather in Silverton changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Silverton and find detailed weather information for every month.
In September, the weather in Silverton is relatively mild, with average temperatures around 8°C (47°F) and maxima reaching 22°C (72°F). The month also sees a fair amount of precipitation at 71 mm (2.8 in) over approximately 11 days, accompanied by a moderate humidity level of 59%. In contrast, January is significantly colder, characterized by a lower average temperature of -9°C (17°F) and maximums only up to 4°C (40°F). This winter month experiences slightly less precipitation, totaling 63 mm (2.5 in) over about 10 days, but with a much higher humidity of 85%. For more specific details, you can check the Silverton weather in January.
September and February exhibit stark differences in weather conditions. In September, temperatures range from a chilly -17°C (2°F) at night to a comfortable 22°C (72°F) during the day, with an average temperature of 8°C (47°F). The month sees a moderate amount of precipitation at 71 mm (2.8 in) over approximately 11 days, maintaining a relative humidity of 59%.
In contrast, February is significantly colder, with nighttime lows reaching -26°C (-15°F) and daytime highs peaking at just 8°C (47°F), resulting in an average temperature of -8°C (18°F). This month has slightly more precipitation at 83 mm (3.3 in) occurring over 13 days, accompanied by higher humidity levels at 86%. For more details on February weather, you can explore Silverton weather in February.
In comparing the weather between September and March, it's clear that March tends to be significantly colder, with average temperatures hovering around -4°C (25°F) compared to September's milder average of 8°C (47°F). September sees a maximum temperature of 22°C (72°F), while March peaks at only 9°C (48°F). Furthermore, precipitation is higher in March, totaling 105 mm (4.1 in) over 14 days, whereas September experiences 71 mm (2.8 in) across 11 days. Additionally, March has greater humidity levels at 76%, compared to September's 59%, illustrating the more uncomfortable, damp conditions typical of late winter. For more detailed information about the weather in March, you can visit Silverton weather in March.
September and April showcase distinct weather characteristics, reflecting the transition from summer to autumn and from winter to spring, respectively. In September, temperatures range from a minimum of -17°C (2°F) to a comfortable maximum of 22°C (72°F), with an average of 8°C (47°F). This month typically experiences 71 mm (2.8 in) of precipitation over 11 days and maintains a humidity level of 59%. In contrast, April has cooler temperatures, with a minimum of -19°C (-2°F) and a maximum of 11°C (52°F), yielding an average of -1°C (30°F). Precipitation in April is slightly lower at 65 mm (2.5 in) over 12 days, accompanied by a higher humidity of 69%. For a more detailed comparison of April's weather, you can refer to Silverton weather in April.
September and May present distinct weather patterns, shaping the seasonal experience in Silverton. In September, temperatures range from a chilly minimum of -17°C (2°F) to a warm maximum of 22°C (72°F), with an average of 8°C (47°F). The month sees about 71 mm (2.8 in) of precipitation over 11 days, contributing to a relatively higher humidity level of 59%.
In contrast, May features slightly milder conditions, with temperatures ranging from -12°C (11°F) to a maximum of 17°C (63°F) and an average of 3°C (37°F). Precipitation in May is comparable, totaling around 69 mm (2.7 in) over 10 days, while humidity is slightly lower at 53%. For a more detailed look at the weather, check out Silverton weather in May.
In comparing the weather of September and June, we observe notable similarities and differences. September experiences a broader temperature range, with minimums dipping to -17°C (2°F) and a maximum of 22°C (72°F), resulting in an average temperature of 8°C (47°F). In contrast, June sees milder temperatures, with minimums of -8°C (18°F) and a maximum of 23°C (74°F), leading to a slightly higher average of 9°C (49°F). Precipitation also varies, with September receiving more rain at 71 mm (2.8 in) over 11 days, compared to June’s 42 mm (1.6 in) over just 8 days. Additionally, humidity levels are higher in September at 59%, while June enjoys a drier atmosphere with 40% humidity. For more specific insights about June weather, you can check Silverton weather in June.
When comparing the weather between September and July, we notice significant differences in both temperature and precipitation. September experiences a broader temperature range, with a minimum of -17°C (2°F) and a maximum of 22°C (72°F), averaging 8°C (47°F). In contrast, July is milder, with a minimum of -1°C (30°F) and a maximum of 24°C (75°F), averaging 12°C (54°F). Precipitation also varies notably; September sees 71 mm (2.8 in) over 11 days, while July receives a much higher total of 190 mm (7.5 in) spread across 20 days, contributing to July's noticeably higher humidity at 36% compared to September's 59%. For a more detailed look into July's weather conditions, visit Silverton weather in July.
In comparing the weather of September and August, we see a marked difference in temperature and humidity levels. September experiences cooler conditions, with average temperatures ranging from a minimum of -17°C (2°F) to a maximum of 22°C (72°F), while August enjoys slightly milder weather, where temperatures hover between -1°C (31°F) and the same maximum of 22°C (72°F). Precipitation is also notable, with September receiving 71 mm (2.8 in) over 11 days, compared to August’s higher total of 86 mm (3.4 in) over 14 days. Furthermore, humidity rises in September to 59%, in contrast to August's lower level of 44%. For more detailed insights, you can check out Silverton weather in August.
In September, the weather tends to be milder with average temperatures around 8°C (47°F) and a maximum of 22°C (72°F). It experiences an average of 71 mm (2.8 in) of precipitation over 11 days, with humidity at 59%. In contrast, October ushers in cooler temperatures, with a significant drop in minimum temperatures to -25°C (-13°F) and an average of just 1°C (34°F). While October has slightly less precipitation at 60 mm (2.4 in) over 9 days, the humidity rises to 74%. For more details on October weather, you can check out Silverton weather in October.
September typically presents milder weather conditions, with temperatures ranging from a minimum of -17°C (2°F) to a maximum of 22°C (72°F) and an average temperature of 8°C (47°F). The month experiences approximately 71 mm (2.8 in) of precipitation over about 11 days, along with a moderate humidity level of 59%.
In contrast, November marks the onset of winter, featuring significantly lower temperatures, with a minimum of -26°C (-14°F) and a maximum of 12°C (53°F), resulting in an average of -4°C (25°F). Though it receives less precipitation at 52 mm (2.1 in) over 7 days, the humidity rises to 83%, contributing to the cold and often damp atmosphere. For more details on November conditions, you can check Silverton weather in November.
In comparing the weather conditions of September and December, it is evident that December experiences significantly colder temperatures, with a minimum of -25°C (-12°F) compared to September’s warmest minimum of -17°C (2°F). The average temperature in December drops to -9°C (17°F), while September maintains a more comfortable average of 8°C (47°F). Precipitation levels are relatively similar, with September receiving 71 mm (2.8 in) and December slightly higher at 74 mm (2.9 in), both spread across 11 days. Additionally, humidity levels rise notably in December to 85%, compared to September's 59%. For more detailed insights on December weather, visit Silverton weather in December.
As September arrives in Silverton, the weather begins to shift from the warmth of summer, introducing a delightful crispness to the air. While daytime temperatures can reach a pleasant 22°C (72°F), the nights can plunge to a chilly low of -17°C (2°F), reminding us that autumn is on the horizon. This month also experiences notable precipitation, with rainfall occurring on several days, contributing to the lush landscapes that characterize this time of year. The increased humidity adds to the unique atmosphere of September, setting it apart from the drier months that precede it. For a deeper understanding of how Silverton’s weather evolves throughout the year, visit Silverton Climate.