Last updated: February 24, 2025
In August, Rainier, United States experiences a diverse array of weather conditions that paint a vivid picture of summer in this region. With a maximum temperature reaching 34°C (94°F) and an average of 19°C (66°F), the month provides ideal warmth for outdoor activities. However, temperatures can dip to a minimum of 10°C (50°F), creating delightful opportunities for cooler evening strolls. Rainfall is light, with only 13 mm (0.5 in) of precipitation spread over 3 days, allowing for plenty of sunny moments to enjoy. Humidity levels hover around a comfortable 73%, enhancing the lush, vibrant landscapes typical of August in Rainier. Overall, this month offers a harmonious blend of warmth, occasional rain, and natural beauty.
In August, Rainier, United States, experiences its warmest temperatures of the year, with a minimum of 10°C (50°F) and an impressive maximum reaching 34°C (94°F). The average holds steady at 19°C (66°F), reflecting the height of summer. This month marks a distinct transition from the cooler spring months, where temperatures gradually climbed. With July's peak at 33°C (91°F), August continues the trend of warmth, providing ideal conditions for outdoor activities and lush landscapes. As summer begins to wane, this month serves as a reminder of the vibrant season before the cooler fall temperatures roll in. This gradual shift highlights the region’s climatic variability and the importance of August as a key month in Rainier's yearly temperature cycle.
In August, Rainier experiences a notable dip in precipitation, with only 13 mm (0.5 in) recorded over just 3 days. This marks a stark contrast to the heavier rainfall of earlier months, such as January and November, where precipitation levels soared above 180 mm. After a remarkably dry July, August’s rainfall is modest, contributing to the overall trend of a drier summer. As the region transitions into fall, precipitation begins to pick up again in September, suggesting that Rainier’s climatic rhythm shifts significantly from the lush greens of spring and summer to the wetter conditions of autumn. This seasonal fluctuation not only defines the landscape but also influences the local ecosystem, keeping it vibrant and resilient throughout the year.
In Rainier, United States, August brings a noticeable dip in humidity, dropping to 73% from the higher levels seen in earlier summer months. This reduction marks one of the lowest points of the year, suggesting a subtle shift toward drier conditions as the summer wanes. In comparison, the humidity remains relatively consistent during the spring and early summer months, hovering around the 80% mark. As the year progresses into fall, humidity begins to rise again, with September recording 74% and returning to 83% by October. This trend highlights August as a transitional month, providing a brief respite from the heavier, more humid air that characterizes the surrounding seasons.
In August, Rainier experiences a UV Index of 8, categorizing the exposure as very high, which means you'll want to be proactive about sun protection. This marks a slight decrease from the peak UV Index of 9 observed in both June and July, but the burn time remains a brisk 15 minutes without adequate protection. The trend throughout the summer highlights a significant increase in UV levels, ramping up from a modest Index of 2 in January to the intense levels seen in the heart of summer. As the season begins to transition into fall, the UV Index will gradually decline, but August is still a time to take precautions when enjoying the outdoor sunshine. To learn more about specific UV levels throughout the year, visit Rainier UV Index.
UV Risk Categories
August shines brightly in Rainier, United States, as the summer sun continues to bask the region in warmth, yielding 331 hours of glorious sunshine. This peak follows the summer crescendo reached in July, where residents enjoyed a remarkable 364 hours of sun. The trend of increasing sunlight from the start of the year – which begins with a modest 81 hours in January – culminates in the vibrant months of late spring and summer. As autumn approaches, sunshine begins to dip, dropping to 254 hours in September, highlighting the fleeting nature of summer. This rhythmic cycle of light not only brightens the days but also sets the stage for the seasonal transitions that characterize Rainier’s climate.
In Rainier, United States, the trend of sunny weather peaks during the summer months, reaching its zenith in July with a 62% chance of sunshine. While August sees a slight dip to 50%, it still maintains a favorable outlook for enjoyable, sunlit days. Following this summery bliss, the likelihood of sunnier skies begins to decline heading into September, dropping to 36%. The transition from summer warmth to fall's cooler embrace brings a noticeable shift in weather patterns, suggesting that August is a prime time to capture the lingering rays before the seasonal changes lead to shorter days and cloudier skies. With average chances of sun being notably higher than the frosty depths of winter, August stands out as one of the better months for basking in sunlight within the year-round weather cycle of Rainier.
As August rolls into Rainier, the daylight begins to wane slightly after a peak in July, boasting an impressive 14 hours of sunlight. This month marks the transition from the long, sunlit days of summer to the shorter daylight hours of fall. Following the pattern established in the preceding months, August still offers plenty of time for outdoor activities and enjoying nature’s beauty, though it signals the beginning of a gradual decline. After basking in the brightness of 15 hours in June and July, residents and visitors can savor these remaining long days before September ushers in the shorter daylight duration of 12 hours. The warm, lingering evenings of August serve as a gentle reminder of summer's fading embrace.
In August, the average wind speed in Rainier, United States, hovers around 2.6 m/s (6 mph), maintaining a gentle breeze that characterizes the summer months. This slight uptick from the calm winds of July reflects a gradual return to the moderate breezes typical of the fall season. Observing the trend throughout the year, wind speeds show a subtle decrease from January through July, before bouncing back slightly in August and continuing to rise toward winter. This seasonal rhythm underscores Rainier's distinct climatic shifts, as summer's warmth gradually gives way to the brisker, more energetic winds of the approaching autumn and winter months.
The weather in Rainier 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 Rainier and find detailed weather information for every month.
August and January present starkly contrasting weather conditions. In August, temperatures fluctuate from a pleasant minimum of 10°C (50°F) to a warm maximum of 34°C (94°F), with average humidity around 73%. The month sees limited precipitation, with only 13 mm (0.5 in) falling over about three days. In sharp contrast, January experiences much colder temperatures, ranging from a low of -6°C (22°F) to a high of 14°C (57°F), coupled with higher humidity levels at 86%. Rainfall is significantly more frequent in January, with a total precipitation of 185 mm (7.3 in) over approximately 17 days. For a more detailed look at January weather, you can visit Rainier weather in January.
When comparing August and February weather, the differences are stark. August boasts milder temperatures with a minimum of 10°C (50°F), an average of 19°C (66°F), and a maximum of 34°C (94°F), along with relatively low precipitation at just 13 mm (0.5 in) over three days, creating a warm and enjoyable atmosphere. In contrast, February experiences significantly cooler temperatures, with a minimum of -5°C (24°F), an average of 5°C (41°F), and a maximum of only 14°C (58°F). Additionally, February is characterized by much higher precipitation levels at 163 mm (6.4 in) spread over 17 days, reflecting a wetter and more humid environment with 84% humidity. For more insights into February's weather nuances, check out Rainier weather in February.
August and March present stark contrasts in weather conditions. In August, temperatures range from a cool 10°C (50°F) to a scorching high of 34°C (94°F), with an average of 19°C (66°F). The month generally experiences minimal precipitation, with only 13 mm (0.5 in) over approximately three days, and a humidity level of 73%. In contrast, March is much cooler, with temperatures ranging from a chilly -1°C (31°F) to a pleasant 23°C (73°F) and an average of 7°C (45°F). It is also significantly wetter, with 131 mm (5.2 in) of rainfall over 17 days and higher humidity at 85%. For those interested in detailed information about the rainy conditions, refer to Rainier weather in March.
When comparing the weather in August and April, there are notable differences in temperature and precipitation. August typically enjoys warmer temperatures, with a minimum of 10°C (50°F), an average of 19°C (66°F), and a maximum of 34°C (94°F). In contrast, April experiences cooler conditions, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 24°C (75°F), making it significantly chillier on average. Precipitation also varies greatly between the two months, as August sees only 13 mm (0.5 in) of rain over just 3 days, while April receives a substantial 116 mm (4.6 in) over 15 days, indicating a much wetter climate during that time. The humidity level is slightly higher in April, at 83%, compared to August's 73%. For a more detailed look at the conditions, check out Rainier weather in April.
When comparing the weather in August and May, notable differences emerge. August typically experiences warmer temperatures with a minimum of 10°C (50°F) and an average of 19°C (66°F), peaking at 34°C (94°F). In contrast, May's temperatures are milder, ranging from a minimum of 5°C (41°F) to an average of 13°C (56°F), and a maximum of 30°C (86°F). Precipitation also differs significantly; May sees more rain, with 62 mm (2.5 in) over 11 days, whereas August has only 13 mm (0.5 in) spread across three days. Humidity levels are higher in May at 84%, compared to 73% in August. For more insights on the weather during this time, check out Rainier weather in May.
When comparing the weather in August to that of June, we see notable differences. August generally enjoys a warmer climate with average temperatures around 19°C (66°F) and maximums reaching up to 34°C (94°F), while June experiences cooler averages of 16°C (61°F) with peaks hitting 38°C (101°F). Precipitation heavily favors June, which receives 52 mm (2.1 in) over 8 days, compared to just 13 mm (0.5 in) over 3 days in August. Furthermore, humidity levels are higher in June at 84%, compared to 73% in August. For a closer look at June's weather specifics, check out Rainier weather in June.
When comparing the weather in August and July, both months exhibit similar temperature ranges, with minimum temperatures at 10°C (50°F) and average daytime highs around 19°C (66°F). However, August slightly edges out July with a maximum temperature of 34°C (94°F) compared to July's high of 33°C (91°F). In terms of precipitation, August received 13 mm (0.5 in) over 3 days, while July saw a bit less with 10 mm (0.4 in) over only 2 days. Notably, humidity levels are a bit lower in August at 73%, down from July's higher humidity of 82%. For a more detailed look at July weather conditions, check out Rainier weather in July.
August offers a warm climate with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 34°C (94°F), averaging around 19°C (66°F). The month sees relatively low precipitation, with only 13 mm (0.5 in) falling over just three days, and humidity levels sitting at 73%. In contrast, September experiences cooler temperatures, with a minimum of 6°C (43°F), averaging 16°C (62°F), and a maximum of 30°C (87°F). However, it is significantly wetter, with precipitation totaling 85 mm (3.4 in) over ten days, while humidity maintains a similar level at 74%. For a more detailed overview, you can check out Rainier weather in September.
In August, the weather is typically warm, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 34°C (94°F) and an average of 19°C (66°F). This month experiences minimal precipitation, with only 13 mm (0.5 in) over about 3 days, and humidity levels are moderate at 73%. In contrast, October brings a significant shift, with cooler temperatures that vary from a chilly 1°C (34°F) to a comfortable 24°C (75°F), averaging at just 11°C (52°F). The month sees a substantial increase in rainfall, totaling 134 mm (5.3 in) across approximately 13 days, along with higher humidity levels at 83%. For more information on the changing weather patterns, check out Rainier weather in October.
August weather is characterized by warmer temperatures, with a minimum of 10°C (50°F) and an average of 19°C (66°F), reaching a maximum of 34°C (94°F). This month also sees relatively low precipitation, with only 13 mm (0.5 in) falling over about 3 days and a humidity level of 73%. In contrast, November experiences much cooler temperatures, with a minimum of 0°C (32°F) and an average of 8°C (46°F), peaking at 17°C (62°F). This month is significantly wetter, accumulating 182 mm (7.2 in) of rainfall across 17 days, accompanied by higher humidity levels at 86%. For a more detailed look at November conditions, check out Rainier weather in November.
The weather comparison between August and December reveals stark contrasts in temperature and precipitation. In August, temperatures range from a mild 10°C (50°F) at night to a warm 34°C (94°F) during the day, with an average of 19°C (66°F). Rain is minimal, with only 13 mm (0.5 in) of precipitation over just 3 days, and the humidity sits at a comfortable 73%. In contrast, December brings much colder weather, with temperatures plummeting to a minimum of -6°C (22°F) and rarely exceeding 13°C (56°F), averaging around 5°C (42°F). Precipitation dramatically increases to 199 mm (7.8 in) over 18 days, accompanied by higher humidity levels of 87%. For a more detailed look at December conditions, visit Rainier weather in December.
As summer approaches its zenith in August, Rainier experiences a delightful blend of warmth and refreshing breezes. With temperatures reaching up to 34°C (94°F), this month stands out as one of the warmest, offering a buoyant contrast to the cooler spring and early summer months. While humidity rests at a moderate 73%, the pleasant weather is often punctuated by brief moments of rain, contributing to the monthly total of about 13 mm over just three days. This unique climate creates an inviting backdrop for outdoor adventures, making August an exceptional time to explore the beauty of Rainier. For a deeper dive into the area's weather patterns, check out Rainier Climate.