Last updated: February 24, 2025
In August, Castle Rock, United States experiences a summer climate characterized by warm temperatures and noticeable humidity. The maximum temperature can soar to 33°C (92°F), while the average hovers around a comfortable 20°C (68°F). Nights offer a refreshing coolness with minimum temperatures dropping to 7°C (45°F). While outdoor activities are often enjoyed, residents and visitors should prepare for occasional rain, with 42 mm (1.6 in) of precipitation spread across approximately 9 days. The air remains humid, averaging around 80%, adding a tropical feel to the picturesque summer backdrop of the region.
In August, Castle Rock experiences a delightful transition toward warmer days, boasting a minimum temperature of 7°C (45°F) and a maximum of 33°C (92°F). The average temperature stabilizes around 20°C (68°F), offering a pleasant reprieve from the chill of the preceding months. This month signifies the peak of summer, bridging the warmth from July while hinting at the cooler autumn days ahead in September. The trend showcases a notable rise in temperatures compared to the frigid lows of winter, emphasizing the area's diverse climate throughout the year. Whether basking in the sun or enjoying a cool evening breeze, August in Castle Rock epitomizes the joys of summer.
In August, Castle Rock experiences a moderate precipitation total of 42 mm (1.6 in) over 9 days, marking a slight decrease from the preceding months. This month typically showcases the tail end of the summer season, with rainfall levels that are consistent with the preceding July, which recorded similar precipitation. Despite the drop in rainfall, August remains vital for the region's transition into fall as it continues the trend of summer moisture accumulation. Notably, after a peak in May with 87 mm (3.4 in), which brought the most significant rains, the summer months exhibit more variability, balancing out with both dry spells and bursts of rain. As the landscape shifts towards autumn, these patterns of precipitation help prepare the region for the changing seasons ahead.
August marks a peak in humidity levels in Castle Rock, United States, reaching 80%. This increase follows a steady climb from the 74% in January, with a slight dip occurring in the spring months. As summer arrives, humidity trends upward, peaking in August before beginning a gradual decline into the fall. Notably, September remains fairly humid at 79%, but the gradual transition to lower levels in October and beyond showcases Castle Rock’s characteristic seasonal shift. Overall, the data indicates that summer months consistently feature higher humidity, particularly highlighting August as the most humid month of the year.
In August, Castle Rock experiences a UV Index of 11, placing it in the extreme exposure category with a burn time of just 10 minutes. This marks a slight decrease from the peak of 12 reached during the height of summer in June and July, but exposure remains critical. As summer gives way to fall, UV levels start to decline, indicating a trend of decreasing solar intensity leading into autumn. However, as evidenced by the consistently high indices from March to August, it’s essential for residents and visitors alike to remain vigilant about sun protection during these months. For more detailed insights on UV levels throughout the year, check out Castle Rock UV Index.
UV Risk Categories
In Castle Rock, United States, August typically basks in a generous 352 hours of sunshine, contributing to the region's warm summer embrace. As the year progresses from the cold depths of January, where only 189 hours of sun graces the landscape, a steady increase in daylight unfolds. By the time summer rolls around, June and July boast the highest totals, peaking at 365 and 372 hours, respectively. Although August sees a slight dip in sunshine, it remains a sun-soaked month, setting the stage for the gradual transition into fall with 307 hours in September. This pattern highlights the region's vibrant summer, making August a key player in Castle Rock's sunny narrative.
In August, Castle Rock experiences a notable uptick in sunlit days, with a 66% chance of sunny weather. This marks a pleasant shift compared to the mid-summer months of June and July, which feature slightly lower probabilities of sunshine at 53% and 58%, respectively. As summer transitions into autumn, August's sunny disposition paves the way for increased outdoor activities, setting the stage for a vibrant late summer atmosphere. This pattern continues into September and October, where sunny chances rise even higher, reaching 69% and 70%. Overall, August in Castle Rock shines brightly in the annual weather trend, offering a delightful interlude of clear skies before the cooler seasons set in.
As summer begins to wane, August in Castle Rock offers a delightful 13 hours of daylight, a slight decline from the peak brightness experienced in June and July. This gradual reduction marks the transition towards autumn, following a vibrant season of long, sunny days that reached up to 14 hours. Despite this decrease, August still provides ample time for outdoor activities and enjoyment of the natural landscape before the days shorten further. As the year progresses, daylight will continue to diminish, dipping to 12 hours in September and further to 11 hours in October, reminding residents of the impending seasonal shift.
In Castle Rock, United States, the August winds continue a gentle trend that characterizes the region's summer months. With an average wind speed of 2.4 m/s (5 mph), the breezes remain soft and soothing, mirroring the slightly declining trend observed throughout the summer. Following a peak in March at 2.9 m/s (6 mph), the wind speeds gradually tapered off during the warmer months, with July and August both recording a consistent 2.4 m/s. The transition into September signals a return to slightly calmer conditions, as the winds resume their typical seasonal rhythm. Overall, Castle Rock’s wind patterns highlight a notable stability, with only subtle fluctuations, making it an inviting destination for those who appreciate gentle summer breezes.
The weather in Castle Rock 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 Castle Rock and find detailed weather information for every month.
August and January present stark contrasts in weather, showcasing the extremes of seasonal changes. August typically enjoys a mild average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F), and a relatively higher humidity of 80%. The month sees about 42 mm (1.6 in) of precipitation spread over 9 days, making it a fairly wet month. In contrast, January experiences much colder temperatures, with averages around -3°C (27°F) and lows plunging to -26°C (-15°F). Precipitation is less frequent, at only 17 mm (0.7 in) over just 3 days, contributing to a drier feel with lower humidity at 74%. For a more detailed look at January's weather, visit Castle Rock weather in January.
August and February showcase stark contrasts in weather conditions. August typically boasts a mild average temperature of 20°C (68°F) with maximums reaching up to 33°C (92°F), while February experiences much colder temperatures, averaging -3°C (26°F) and dipping as low as -30°C (-22°F). Precipitation is slightly higher in August, with 42 mm (1.6 in) over about 9 days, compared to February's 22 mm (0.9 in) across 7 days. Moreover, humidity levels are higher in August at 80%, while February maintains a more crisp 75%. For a closer look at February's unique weather characteristics, explore Castle Rock weather in February.
The weather in August is characterized by a warm climate, with average temperatures around 20°C (68°F) and maximums reaching up to 33°C (92°F). In contrast, March presents a starkly different environment, where temperatures typically range from a chilling minimum of -24°C (-10°F) to a mild average of 2°C (36°F). While August experiences relatively low precipitation of 42 mm (1.6 in) over nine days, March has slightly higher precipitation levels at 59 mm (2.3 in) across seven days, albeit with a lower humidity of 66% compared to August's 80%. For more detailed information about March conditions, you can visit Castle Rock weather in March.
When comparing the weather in April and August, a stark contrast emerges. April experiences colder temperatures, with minimums dropping to -18°C (0°F) and average daily highs reaching only 27°C (82°F). In contrast, August is considerably warmer, boasting minimums of 7°C (45°F) and average highs around 20°C (68°F), peaking at a maximum of 33°C (92°F). Both months receive similar amounts of precipitation, around 42 mm, over roughly the same number of days, but April has lower humidity at 62% compared to the 80% humidity typical in August. For more insights on April's weather, you can check Castle Rock weather in April.
August weather tends to be significantly warmer compared to May, with average temperatures in August reaching 20°C (68°F) and peaking at 33°C (92°F), while May sees a much cooler average of 11°C (53°F) and max temperatures of 31°C (88°F). Despite the higher temperatures in August, May experiences more precipitation, totaling 87 mm (3.4 in) over 14 days, compared to August's 42 mm (1.6 in) over just 9 days. Additionally, humidity levels are slightly higher in August at 80%, compared to 74% in May. For a more detailed look at May weather conditions, you can check Castle Rock weather in May.
When comparing the weather in August and June, August tends to be warmer overall, with average temperatures around 20°C (68°F) and a maximum reaching up to 33°C (92°F). In contrast, June has a slightly cooler average of 18°C (65°F) and can peak at 35°C (96°F). Both months experience similar levels of precipitation, with August receiving 42 mm (1.6 in) over 9 days and June recording 45 mm (1.8 in) over just 8 days. However, August’s humidity is higher at 80%, compared to June's 76%, leading to a more muggy feel in late summer. For a closer look at June specifics, you can explore Castle Rock weather in June.
In comparing the weather between July and August, July typically experiences slightly warmer temperatures, with an average of 21°C (70°F) and a maximum of 35°C (95°F), compared to August's average of 20°C (68°F) and a maximum of 33°C (92°F). Notably, July also tends to be wetter, receiving 59 mm (2.3 in) of precipitation over 11 days, while August sees less rainfall at 42 mm (1.6 in) over 9 days. Additionally, the humidity level in August is higher at 80%, compared to July's 75%. For more detailed information, you can check Castle Rock weather in July.
In August, temperatures range from a cool minimum of 7°C (45°F) to a warm maximum of 33°C (92°F), with an average temperature of 20°C (68°F). The month experiences 42 mm (1.6 in) of precipitation over 9 days and maintains a high humidity level of 80%. In contrast, September sees a notable drop in minimum temperatures, reaching as low as -4°C (26°F), while still peaking at 33°C (92°F) and averaging at 17°C (62°F). The month has slightly less precipitation at 34 mm (1.3 in) over 6 days and a marginally lower humidity of 79%. For more details on September weather, check out Castle Rock weather in September.
In August, the weather is typically warm, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 33°C (92°F) and an average temperature of around 20°C (68°F). The month experiences about 42 mm (1.6 in) of precipitation over 9 days, alongside high humidity levels at 80%. In contrast, October sees a significant drop in temperatures, with lows plunging to -23°C (-9°F) and a maximum of 28°C (83°F), resulting in an average of only 8°C (46°F). Precipitation in October is slightly lower at 33 mm (1.3 in) over 6 days, and humidity remains relatively consistent at 77%. For more detailed information, check out Castle Rock weather in October.
August and November present striking contrasts in weather. August typically enjoys a warm climate with average temperatures around 20°C (68°F), peaking at 33°C (92°F), and a higher humidity level of 80%, accompanied by about 42 mm of precipitation over nine days. In contrast, November brings a much chillier environment, with average temperatures dropping to just 2°C (37°F) and minimums plummeting to -23°C (-9°F), while highs reach a milder 24°C (75°F). This month experiences less precipitation, totaling about 20 mm across only four days, with humidity sitting at a slightly lower 74%. For more insights on the specifics of November weather, you can explore Castle Rock weather in November.
In August, weather is typically warm, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 33°C (92°F), and an average of 20°C (68°F). The month sees around 42 mm (1.6 in) of precipitation over about nine days, accompanied by a high humidity level of 80%. In stark contrast, December experiences much colder conditions, with temperatures plummeting to a minimum of -21°C (-5°F) and reaching a maximum of 21°C (70°F), averaging around -1°C (30°F). During this month, there is significantly less precipitation, totaling only 9 mm (0.4 in) over three days, while the humidity remains consistent at 80%. For a more detailed outlook, check Castle Rock weather in December.
August in Castle Rock brings a blend of warmth and occasional rain, setting it apart from the cooler months that precede it. With maximum temperatures reaching highs of 33°C (92°F) and an average of 20°C (68°F), this month is characterized by noticeably higher warmth and a distinctive summer feel. However, the humidity can make the heat feel more intense, while the 42 mm of precipitation spread over nine days ensures that the landscape remains lush and vibrant. This combination of heat and humidity, contrasted with cooler and dryer seasonal weather, highlights August as a unique month in Castle Rock's climate. For more insights on the weather patterns of this beautiful area, visit Castle Rock Climate.