Last updated: February 24, 2025
In September, Telluride, United States, showcases a delightful transition into fall with an average temperature of 10°C (50°F), peaking at a maximum of 24°C (76°F). As summer gives way to cooler days, nighttime temperatures can drop to a brisk -10°C (14°F). This month averages 50 mm (2.0 in) of precipitation over 8 days, resulting in a humidity level of 59% that adds to the crisp mountain air. The combination of mild days and cooler nights creates a picturesque setting ideal for outdoor activities, making it an enchanting time to explore the beauty of the Rockies.
In September, Telluride experiences a transition as summer begins to give way to autumn. With minimum temperatures dipping to around -10°C (14°F), the crispness in the air hints at the cooler months ahead, while the average temperature settles at a comfortable 10°C (50°F), ideal for outdoor activities. Daytime highs can reach a pleasant 24°C (76°F), allowing visitors to still enjoy the stunning mountain scenery in relatively mild conditions. This month stands out as a bridge between the warm, vibrant days of summer and the chilly embrace of fall, making it a unique time to experience the charm of Telluride's natural beauty.
In September, Telluride experiences a shift in its precipitation patterns as the summer heat wanes, accumulating 50 mm (2.0 in) of rainfall over 8 days. This marks a slight decrease in both total precipitation and rain days compared to the more intense deluge of July, which boasts the highest rainfall at 113 mm (4.5 in) over 15 days. Following the vibrant summer months, September's weather begins to transition, with moisture levels dipping closer to the figures noted in October and November, suggesting a gradual descent into fall. As the mountain air starts to cool, the relatively moderate precipitation provides a refreshing contrast to the heavier rains of summer, paving the way for the stunning autumn foliage that Telluride is known for.
As summer wanes and September arrives in Telluride, the humidity begins to shift, rising to 59%. This increase marks a notable transition from the dry summer months, where July and August dipped to 36% and 44% respectively. The trend in humidity throughout the year shows a gradual decrease from the moist winter months, which hover around 85% in January and December, to a summer low before climbing back up in the fall. September’s humidity offers a refreshing respite from the drier summer air, blending the crispness of autumn with a touch of lingering warmth. This blend not only enhances the beauty of the changing leaves but also sets the stage for the cozy winter months ahead.
As summer fades into autumn, September in Telluride continues to bask in extreme UV Index levels, measuring 11. This sharp drop from the heights of July and August, where the index peaked at 13 and 12 respectively, still indicates a significant potential for sun damage. With a burn time of just 10 minutes, it's crucial for outdoor enthusiasts to stay vigilant about sun protection. This trend highlights the need for caution even as the seasons change, reminding visitors that the sun's intensity remains a force to respect. For more insights into UV trends throughout the year, visit Telluride UV Index.
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As the summer sun begins to wane, September in Telluride offers a remarkable 315 hours of sunshine, making it a delightful month for outdoor enthusiasts. This post-summer glow continues the trend of abundant daylight, following a peak in May with 365 hours. The steady decline into October is gradual, with September still boasting more sunshine than the colder months ahead. Visitors can revel in the crisp air and stunning fall foliage, enjoying the vibrant colors under a sky that is still generous with sun. Overall, September strikes a beautiful balance, blending the warmth of summer with the fresh feelings of autumn—ideal for exploring the breathtaking landscapes of this mountain town.
As September arrives in Telluride, the chance of sunny days climbs to an impressive 70%, solidifying its status as one of the sunniest months of the year. This upward trend in sunshine is notable when compared to the earlier summer months, where the chances hovered around 51% to 68%. September is a transition month; it not only boasts clearer skies but also marks the beginning of autumn's vibrant foliage, making it a perfect time for outdoor activities and scenic views. With the weather turning pleasantly warm and reliable sunshine, this month invites both locals and visitors to soak in the stunning landscapes under bright blue skies.
As September rolls into Telluride, the landscape begins to transition into autumn, reflected in the shift of daylight hours. With an average of 12 hours of daylight, this month marks a gentle decline from the summer solstice peak of 14 hours enjoyed from June through August. After basking in the extended sunlight of summer, the days shorten gradually, echoing the approach of cooler weather. This trend signifies the onset of fall, where the vibrant hues of changing leaves are accompanied by a cozy decrease in daylight, ushering in a season of warmth and reflection.
In September, the wind in Telluride gently whispers at an average speed of 1.9 m/s (4 mph), slightly slower than the previous months, yet still adding to the region's enchanting atmosphere. This trend of mild breezes throughout the summer months gives way to a subtle transition as autumn approaches. Compared to the higher gusts experienced earlier in spring, where speeds peaked around 2.4 m/s (5 mph) in April, September’s calmness reflects a period of tranquility before the crisp, invigorating winds of fall set in. Notably, the wind speeds remain consistent with a gentle rhythm, offering a picturesque backdrop for both residents and visitors to savor the stunning fall foliage as it begins to emerge.
The weather in Telluride 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 Telluride and find detailed weather information for every month.
In comparing the weather of September and January, there is a stark contrast in temperatures and atmospheric conditions. September showcases a broader temperature range with minimums around -10°C (14°F) and maximums reaching up to 24°C (76°F), leading to a comfortable average of 10°C (50°F). In contrast, January often experiences much colder conditions, with minimum temperatures plummeting to -23°C (-10°F) and an average temperature of -8°C (18°F), peaking at only 7°C (45°F). The precipitation levels are similar, with September receiving 50 mm over 8 days versus January's 52 mm over 10 days; however, January's humidity is significantly higher at 85% compared to September's 59%. For more detailed insights on January weather, check out Telluride weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures fluctuate between a minimum of -10°C (14°F) and a maximum of 24°C (76°F), with an average of 10°C (50°F). The month experiences moderate precipitation totaling 50 mm (2.0 in) over about 8 days, coupled with a humidity level of 59%. In contrast, February is much colder, with temperatures ranging from a biting minimum of -25°C (-12°F) to a maximum of only 10°C (51°F), averaging around -7°C (20°F). This month sees more precipitation at 73 mm (2.9 in) spread across 13 days and significantly higher humidity at 86%. For more detailed information on the February climate, check out Telluride weather in February.
In September, the weather is generally milder, with average temperatures ranging from a minimum of -10°C (14°F) to a maximum of 24°C (76°F) and an average of 10°C (50°F). This month typically experiences less precipitation, averaging 50 mm (2.0 in) over about 8 days, along with a humidity level of 59%. In contrast, March brings colder temperatures, with a minimum of -21°C (-5°F) and a maximum of 11°C (53°F), resulting in an average temperature of -3°C (27°F). Precipitation is higher during this month, averaging 82 mm (3.2 in) over 13 days, and the humidity rises to 76%. For a detailed overview, check out Telluride weather in March.
Comparing the weather in September and April reveals distinct seasonal differences. September enjoys milder temperatures, ranging from a minimum of -10°C (14°F) to a maximum of 24°C (76°F), with an average of 10°C (50°F). In contrast, April is generally colder, with temperatures dipping to -17°C (1°F) at night and reaching a maximum of 12°C (55°F), averaging around 0°C (32°F). While both months experience precipitation, September sees about 50 mm (2.0 in) over approximately 8 days, whereas April has slightly more rain at 60 mm (2.4 in) over 10 days. Humidity levels are also higher in April at 69% compared to September's 59%. For more details, check out Telluride weather in April.
In comparing the weather between September and May, we see some notable differences. September typically enjoys a broader temperature range, with minimums of -10°C, average highs around 10°C, and maximums reaching 24°C, while May experiences slightly cooler temperatures, with minimums at -12°C, an average of 4°C, and maximums peaking at 20°C. Precipitation is fairly consistent, with September receiving 50 mm over about 8 days, compared to May's 56 mm over 10 days. Humidity levels are also relatively close, with September at 59% and May slightly lower at 53%. For more detailed insights about May weather, you can check Telluride weather in May.
When comparing the weather in September and June, notable differences emerge in temperature and humidity levels. June tends to be slightly warmer, with average temperatures ranging from -7°C (20°F) to a maximum of 26°C (78°F), while September presents a broader range, with minimums dipping to -10°C (14°F) and highs reaching 24°C (76°F). Additionally, June experiences lower humidity at 40%, compared to September’s 59%, creating a drier feel during the earlier summer month. Precipitation is also less frequent in June, occurring over just 6 days with a total of 30 mm (1.2 in), while September sees a bit more rain over 8 days, totaling 50 mm (2.0 in). For a more detailed look at weather in June, check out Telluride weather in June.
In comparing the weather between July and September, we can see notable differences in temperature and precipitation. July generally experiences warmer temperatures with a minimum of 0°C (32°F) and an average of 14°C (58°F), reaching up to 26°C (79°F). In contrast, September boasts a broader temperature range, with a minimum of -10°C (14°F) and an average of 10°C (50°F), peaking at 24°C (76°F). When it comes to precipitation, July is significantly wetter, receiving 113 mm (4.5 in) over 15 days, whereas September has only 50 mm (2.0 in) spread over 8 days. Additionally, the humidity is higher in September at 59%, compared to July's 36%. For more detailed information, you can visit Telluride weather in July.
In comparing the weather between August and September, we observe notable differences in temperature and humidity. September boasts a more extreme temperature range, with a minimum of -10°C (14°F), against August's milder minimum of 1°C (35°F). Both months share the same maximum temperature of 24°C (76°F), but September averages a slightly cooler 10°C (50°F) compared to August's 13°C (56°F). Precipitation levels are comparable, with September receiving 50 mm (2.0 in) over 8 days and August slightly higher at 54 mm (2.1 in) over 10 days. Additionally, September's higher humidity at 59% contrasts with August's more comfortable 44%. For a detailed look at August’s weather specifics, check out Telluride weather in August.
In September, the weather features a mild average temperature of 10°C (50°F), with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 24°C (76°F). This month experiences moderate humidity at 59% and receives about 50 mm (2.0 in) of precipitation over 8 days. In contrast, October brings a significant drop in temperature, with an average of 2°C (36°F) and a minimum plunging to -27°C (-17°F). Although precipitation slightly increases to 52 mm (2.0 in) over 10 days, the humidity also rises to 74%. For more detailed information on specific conditions, you can check Telluride weather in October.
September and November exhibit notable differences in weather conditions. In September, temperatures range from a minimum of -10°C (14°F) to a maximum of 24°C (76°F), with an average temperature around 10°C (50°F). The month experiences about 50 mm (2.0 in) of precipitation over 8 days and a humidity level of 59%. In contrast, November brings much colder temperatures, with a minimum of -27°C (-16°F) and a maximum of only 14°C (57°F), leading to an average of -4°C (26°F). Although November sees slightly less precipitation at 43 mm (1.7 in) over the same number of days, the humidity rises significantly to 83%. For more details on November weather conditions, you can visit Telluride weather in November.
September weather is generally milder, featuring temperatures that range from a minimum of -10°C (14°F) to a maximum of 24°C (76°F), with an average of 10°C (50°F). The month sees about 50 mm (2.0 in) of precipitation over 8 days, and humidity levels are relatively moderate at 59%. In contrast, December experiences much colder conditions, with temperatures plummeting to a minimum of -26°C (-15°F) and averaging -8°C (18°F), peaking at just 9°C (49°F). Precipitation increases slightly to 60 mm (2.4 in) over 11 days, accompanied by higher humidity at 85%. For those interested in more detailed December conditions, you can check out Telluride weather in December.
As September unfolds in Telluride, the weather embarks on a distinct transition. With cooler averages taking hold, temperatures drop from the summer peaks, allowing for comfortable exploration of the area's breathtaking landscapes. While visitors can still enjoy pleasant days with occasional warmth, the nights turn significantly cooler, hinting at the approaching winter. Precipitation, though present, tends to be moderate, making this month a relatively dry time compared to the wetter seasons. Overall, September offers a unique blend of lingering warmth and crisp air, making it an ideal period for those seeking both adventure and serenity in nature. For a deeper understanding of the area’s climate, check out Telluride Climate.