Last updated: February 24, 2025
In Aspen, United States, the weather in August presents a delightful blend of mountain warmth and refreshing breezes. With maximum temperatures reaching 25°C (77°F) and an average of 13°C (55°F), the days are perfect for outdoor adventures. However, evenings can be a bit cooler, dipping to a minimum of 0°C (33°F), making a light jacket a wise choice. This month sees 37 mm (1.5 in) of precipitation spread over 8 days, ensuring the surrounding landscapes remain lush and vibrant. The humidity level hovers around 56%, striking a balance that enhances the overall summer charm, making Aspen an idyllic destination in August.
In August, Aspen experiences a pleasant transition into late summer, with temperatures showcasing a delightful range. The month opens with minimum temperatures hovering around 0°C (33°F), providing a refreshing start to early outings. As days progress, the average temperature rises to a comfortable 13°C (55°F), perfect for outdoor adventures in the stunning Rockies. Notably, maximum temperatures can reach a pleasant 25°C (77°F), inviting locals and tourists alike to enjoy hiking, biking, or simply soaking in the scenic views. This culmination of warmth makes August a standout month, particularly when compared to the harsh winter months preceding it, where temperatures plunge significantly. Overall, Aspen in August offers a welcoming climate that contrasts sharply with the deep winter chill, marking it as an ideal time to explore the natural beauty of the area.
August in Aspen witnesses a gentle wind-down in precipitation, with an average of 37 mm (1.5 in) falling over about 8 days. This marks a noticeable decrease from the preceding months, particularly the wet conditions of June and July. The lush greenery that thrived during Colorado’s summer peaks begins to transition into the drier spell of early fall. The consistent drop in precipitation can be attributed to shifting weather patterns, signaling the approach of autumn. As the mountains begin to embrace their fall colors, the lighter rainfall creates a unique charm in the landscape, inviting residents and visitors alike to relish the crisp air and vibrant scenery.
In August, Aspen experiences a noticeable increase in humidity compared to the summer months, with levels rising to 56%. This marks a shift from the low of 52% in July, suggesting a mild return of moisture as the summer sun begins to fade. The trend in humidity throughout the year reveals a gradual decline from a high of 88% in January, gradually dropping to its annual low in July, before inching up again into late summer. As September approaches, humidity levels climb further to 65%, indicating that while August remains relatively comfortable, the season's transition brings a hint of moisture back into the air, enhancing the lush beauty of this mountainous landscape.
In August, Aspen experiences a UV Index of 12, reflecting an extreme exposure category with a burn time of just 10 minutes, making sun protection essential for outdoor activities. As summer peaks, the UV levels remain impressively high, with June registering the highest index at 15 and May slightly behind at 13. This trend showcases the significant intensity of UV rays prevalent during these months, prompting residents and visitors alike to stay vigilant. Interestingly, as the season shifts to September, the UV Index drops slightly to 11, yet it still falls within the extreme exposure category, emphasizing the importance of sun safety strategies even as summer wanes. For a fuller insight into UV levels throughout the year, check the detailed report at Aspen UV Index.
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In August, Aspen bathes in a generous 360 hours of sunshine, making it one of the sunniest months of the year. The warm summer days peak, continuing the trend set in July, where the sunlight reached a similar high of 386 hours. This sunny spell follows a gradual increase from the winter months, where the sun barely breaks through, highlighting a clear seasonal shift. As the warmth dwindles toward September, with its 317 hours of sunshine, August serves as a glorious reminder of summer's vibrant days, allowing residents and visitors alike to fully enjoy the breathtaking beauty of the surrounding mountains and lush landscapes.
In Aspen, August shines as one of the sunniest months of the year, boasting a 67% chance of sunny weather. This is a noticeable uptick compared to earlier summer months, such as July with its 50% probability, and marks a continuation of a trend observed since the spring. The likelihood of sun gradually increases from the beginning of the year, with April's 55% providing a hint of the bright days ahead. As summer approaches its peak, the chance of sunshine remains consistent into September, promising great outdoor experiences for both visitors and residents. So whether it’s hiking or enjoying local festivals, August offers an inviting forecast for sun lovers in Aspen.
As August arrives in Aspen, the daylight duration starts to gently wane, providing around 13 hours of sunlight—a slight decline from the peak summer months of June and July, which bask in a maximum of 14 hours. This gradual decrease signals the transition from the vibrant energy of summer activities towards the more mellow days of early autumn. Following the progression from 9 hours of daylight in January to 14 hours in the heart of summer, August marks a harmonious point where outdoor enthusiasts can still enjoy plentiful sunshine while beginning to experience the cooler, crisper evenings that herald the upcoming seasons. This subtle shift embodies Aspen’s natural rhythm, balancing warmth and light before the days shorten further into September.
In August, the winds in Aspen maintain a gentle breeze at an average speed of 2.0 m/s (5 mph), mirroring the tranquillity of the summer days. This month follows a gradual decline in wind speed experienced from peak summer months, with July recording the lightest gusts at 1.8 m/s (4 mph). After a subtle drop throughout July, August's winds offer a refreshing blend of warmth and coolness, creating a serene atmosphere for outdoor activities. Observing the trend, there’s a tendency for a slight pickup in wind speed as autumn approaches, suggesting that the transition into September may see a gradual shift back to crisp, invigorating breezes as the season changes. Overall, August serves as a calm interlude, setting the stage for the brisk transitions to come.
The weather in Aspen changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Aspen and find detailed weather information for every month.
In August, the weather is relatively mild, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 25°C (77°F) and an average of 13°C (55°F). Precipitation is moderate, with about 37 mm (1.5 in) collected over 8 days, and humidity levels sitting at 56%. In stark contrast, January experiences much harsher conditions; temperatures plunge to a minimum of -23°C (-10°F) and reach a maximum of just 5°C (42°F), averaging -9°C (16°F). This month sees even more precipitation at 59 mm (2.3 in) over 11 days, along with higher humidity levels of 88%. For a detailed look at the weather in January, you can visit Aspen weather in January.
In August, temperatures range from a minimum of 0°C (33°F) to a pleasant maximum of 25°C (77°F), with an average of around 13°C (55°F). The month sees moderate precipitation of 37 mm (1.5 in) over about 8 days, accompanied by a relative humidity of 56%. In stark contrast, February experiences much colder conditions, with temperatures dipping as low as -25°C (-13°F) and reaching a maximum of 10°C (50°F), resulting in an average of -8°C (18°F). February also has higher precipitation at 78 mm (3.1 in) spread over 15 days, and has increased humidity at 87%. For more detailed weather insights during February, you can check out Aspen weather in February.
The weather in August and March presents a stark contrast, both in temperature and overall conditions. August boasts milder temperatures with a minimum of 0°C (33°F) and a comfortable average of 13°C (55°F), peaking at 25°C (77°F). The month experiences relatively low precipitation at 37 mm (1.5 in) over about 8 days, accompanied by a moderate humidity of 56%. In comparison, March is much colder, with temperatures dipping to a minimum of -21°C (-6°F) and an average of -4°C (26°F), while only reaching a maximum of 11°C (51°F). March also sees significantly higher precipitation at 82 mm (3.2 in) over 14 days, coupled with increased humidity at 81%. For a deeper look at March weather patterns, visit Aspen weather in March.
When comparing the weather in August and April, it's clear that August is significantly warmer and more pleasant. In August, temperatures range from a minimum of 0°C (33°F) to a maximum of 25°C (77°F), with an average of 13°C (55°F). Precipitation occurs on about 8 days, totaling 37 mm (1.5 in), and the humidity is at a moderate 56%. In contrast, April is much cooler, with temperatures ranging from a chilly -19°C (-2°F) to a maximum of 11°C (53°F), and averaging around -1°C (31°F). It sees more rainfall, with 72 mm (2.8 in) spread over 13 days, and higher humidity at 76%. For a more detailed look at April's weather, you can check out Aspen weather in April.
When comparing the weather in August and May, it's clear that August generally offers milder temperatures and less precipitation. In August, temperatures range from a minimum of 0°C (33°F) to a maximum of 25°C (77°F), with an average of 13°C (55°F) and only 37 mm (1.5 in) of rainfall over approximately 8 days. In contrast, May experiences lower temperatures, ranging from -12°C (11°F) to a maximum of 18°C (64°F), with an average of just 3°C (38°F). Moreover, May sees more precipitation at 62 mm (2.4 in) across around 12 days, resulting in higher humidity levels at 66% compared to August’s 56%. For more details on the climate specifics, you can check out Aspen weather in May.
In comparing the weather between August and June, both months exhibit a similar maximum temperature, with August reaching 25°C (77°F) and June slightly higher at 25°C (78°F). However, June tends to have cooler minimum temperatures, dropping to -7°C (21°F) compared to August's milder 0°C (33°F). Precipitation is relatively minimal in both months, with August receiving 37 mm (1.5 in) over 8 days and June slightly less at 33 mm (1.3 in) over 6 days. Humidity levels are also comparable, with June being a bit more humid at 58% versus August’s 56%. For a detailed look at June's climate, you can check out Aspen weather in June.
In comparing the weather patterns of July and August, August tends to be slightly warmer with a minimum temperature of 0°C (33°F) and a maximum temperature of 25°C (77°F), compared to July’s minimum of -1°C (30°F) and a maximum of 26°C (78°F). Notably, both months have similar average temperatures, with August averaging 13°C (55°F) and July at 14°C (57°F). However, August experiences less precipitation at 37 mm (1.5 in) over 8 days, whereas July sees a higher total of 60 mm (2.4 in) spread across 12 days. Additionally, humidity levels are marginally higher in August at 56% compared to July's 52%. For more detailed insights, you can check Aspen weather in July.
August typically offers milder weather compared to September, with average temperatures ranging from a minimum of 0°C (33°F) to a maximum of 25°C (77°F). In contrast, September experiences cooler mornings, with minimum temperatures dropping to -7°C (19°F) and an overall average of 9°C (49°F). Both months see similar precipitation levels, with August receiving 37 mm (1.5 in) over 8 days and September slightly less at 35 mm (1.4 in) over 7 days. Notably, September also has higher humidity at 65% compared to August’s 56%, contributing to a different feel in the air. For more detailed insights into September's weather, you can visit Aspen weather in September.
In August, the weather is generally mild, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 25°C (77°F) and an average of 13°C (55°F). Precipitation is relatively low at 37 mm (1.5 in) over about 8 days, and humidity levels sit around 56%. In contrast, October brings much colder conditions, with temperatures dropping significantly; the minimum can reach -30°C (-21°F) while the average is only 1°C (34°F) and the maximum peaks at 19°C (66°F). October experiences higher precipitation at 62 mm (2.4 in) across approximately 10 days, along with increased humidity of 76%. For detailed insights on October weather, you can check Aspen weather in October.
August and November present stark contrasts in weather. August typically sees warmer temperatures, with a range from a minimum of 0°C (33°F) to a pleasant maximum of 25°C (77°F). In this month, precipitation is relatively low at 37 mm (1.5 in) over about 8 days, and humidity hovers around 56%. In contrast, November plunges into much colder conditions, featuring a minimum temperature of -28°C (-18°F) and a maximum of 11°C (53°F), resulting in a much chillier average of -6°C (22°F). This month also experiences increased precipitation at 52 mm (2.1 in) across 9 days and higher humidity at 82%. For more insights on what to expect, check out Aspen weather in November.
When comparing the weather in August and December, it's clear that these months offer starkly different climates. August typically experiences milder temperatures, with averages around 13°C (55°F) and highs reaching up to 25°C (77°F), accompanied by moderate humidity at 56% and relatively low precipitation of 37 mm over 8 days. In contrast, December is marked by much colder conditions, with average temperatures plummeting to -9°C (15°F) and maximums only reaching 7°C (45°F). This month also sees increased moisture, with precipitation totaling 65 mm over 12 days and humidity levels rising to 89%. For a more detailed look at what to expect, visit Aspen weather in December.
August in Aspen offers a delightful transition into late summer, characterized by mild temperatures and occasional refreshing rain showers. With an average temperature of around 13°C (55°F), the warm days invite outdoor adventures, while evenings cool down considerably, adding a crispness to the air. Unlike the more intense heat of July, August sees a notable increase in precipitation, with about 8 rainy days contributing to the region's lush scenery. This month balances relative humidity and sunny spells, making it a lovely time for visitors seeking both comfort and the wonder of nature. For detailed insights into the weather patterns throughout the year, check out Aspen Climate.