Last updated: February 24, 2025
In August, Mount Vernon experiences a warm climate, with maximum temperatures soaring up to 35°C (95°F) and an average of 26°C (79°F). As the season progresses, the area sees a minimum temperature of 17°C (63°F), providing a comfortable nighttime contrast. The month is characterized by moderate precipitation, totaling 149 mm (5.8 in) over approximately 15 days, which contributes to a humidity level of 72%. This blend of warmth and moisture creates a vibrant environment, perfect for enjoying various outdoor activities while also preparing for the occasional summer shower.
In Mount Vernon, August marks the peak of summer, with temperatures reflecting the season's warmth. The month offers a delightful range, starting with minimums around 17°C (63°F) and reaching up to a sizzling maximum of 35°C (95°F). With an average temperature of 26°C (79°F), August invites residents and visitors to enjoy the outdoors, whether lounging in the sun or basking in the long, warm evenings. This rise in temperature follows a steady climb from the cooler months of spring and early summer, highlighting a noticeable heat trend that makes August the warmest month of the year. As summer nears its end, Mount Vernon's August temperatures provide the perfect backdrop for memorable adventures and relaxation.
In August, Mount Vernon experiences its peak rainfall, recording 149 mm (5.8 inches) of precipitation over 15 days. This marks a notable increase from July, when 139 mm (5.5 inches) fell across 13 days. The trend reveals a consistent rise in precipitation during the summer months, with July and August showing a significant jump compared to earlier in the year. As the season progresses, the region transitions from drier periods in spring to a more humid and rain-soaked atmosphere, setting the stage for a lush landscape and the cooling temperatures of fall. This pattern highlights the area's characteristic maritime climate, where warm summer months are often accompanied by increased rainfall, making August the rainiest month of the year in Mount Vernon.
In August, Mount Vernon experiences a pleasant dip in humidity, recording a comfortable 72%. This marks the lowest humidity level of the year, following the gradual decline that begins in the scorching month of July. As summer wanes, the transition to autumn becomes more pronounced, with humidity levels rising again in September to 75%. Overall, the trend reveals a refreshing drop in moisture during the peak of summer, providing residents and visitors a chance to enjoy the outdoors without the oppressive stickiness characteristic of the earlier months.
In August, Mount Vernon experiences a notably high UV Index of 10, which classifies as very high exposure. This trend continues the peak levels seen throughout the summer months of June and July, where residents and visitors are advised to take extra precautions against sunburn due to the 15-minute burn time. The UV Index has gradually increased from a moderate level of 3 in January to this summer peak, illustrating how the sun's intensity escalates as the year progresses. As the month transitions to September, a slight dip to an Index of 8 is expected, but the summer sun remains potent. It's crucial to stay informed and protected during these high UV periods; for more detailed insights, check out the full Mount Vernon UV Index.
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August in Mount Vernon boasts a remarkable 336 hours of sunshine, continuing the vibrant trend seen throughout the summer months. Following a peak in July with 366 hours, August experiences a slight dip, yet still offers ample sun to bask in. It's noteworthy that sunshine hours have steadily increased from the winter months, where January brings a mere 161 hours, to the summer’s peak. This sunny ascent reflects a broader pattern of longer days that culminate in the warm embrace of late summer, inviting residents and visitors alike to revel in the outdoors before the cooler fall months set in. As September approaches, a gentle decline to 294 hours will remind all of the changing seasons, but for now, August shines brightly in Mount Vernon's summer splendor.
In Mount Vernon, the likelihood of sunny weather in August dips to 37%, marking it as one of the less favorable months for sunshine. This trend contrasts with the sunnier spells of the early summer, where July holds a stronger 51% chance of clear skies. As we transition from summer to autumn, the probability of sunshine tends to rise again in September to 58%, suggesting that while August may lag behind in sunny days, the following month brings a refreshing boost. Overall, August's weather reflects a gradual shift toward cloudier days, setting the stage for the crisp, brighter days of fall that lie ahead.
As summer draws to a close in Mount Vernon, August offers a gentle transition in daylight duration, with approximately 13 hours of sunlight each day. This marks a slight decrease from the peak 14 hours experienced in the earlier summer months of June and July. Notably, the gradual decline in daylight begins in May, peaks during the heart of summer, and starts to recede as September approaches. This rhythm mirrors nature's cycles, signaling a shift toward shorter days and the onset of autumn. As the warmth of summer lingers, the rich tapestry of daylight continues to weave its way through the familiar seasonal dance.
In August, Mount Vernon experiences its calmest winds of the year, with an average speed plummeting to just 2.5 m/s (6 mph). This reflects a noticeable trend as the summer months progress; July already showed a decline at 3.3 m/s (7 mph). The more relaxed breezes of August mark a contrast to the slightly brisker winds experienced in the earlier months, which maintained an average around 4.1 m/s (9 mph) from January through April. The shift to milder winds not only invites a sense of tranquility but also heralds the coming autumn as the average speeds gradually rise again in September. This seasonal rhythm underlines how Mount Vernon’s wind patterns ebb and flow, painting a peaceful summer scene before gearing up for the vibrant fall.
The weather in Mount Vernon 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 Mount Vernon and find detailed weather information for every month.
August and January present a stark contrast in weather conditions. In August, temperatures are generally warm, with averages around 26°C (79°F) and peaks reaching as high as 35°C (95°F). This month is also characterized by a high humidity level of 72% and considerable rainfall, totaling 149 mm (5.8 in) over about 15 days. In sharp contrast, January experiences frigid conditions, with average temperatures around 4°C (39°F) and lows plunging to -16°C (3°F). Precipitation is less frequent, occurring on only 9 days, totaling 71 mm (2.8 in), but the humidity is notably high at 84%. For more insights into January weather patterns, you can check Mount Vernon weather in January.
August and February present stark contrasts in weather conditions. In August, temperatures range from a mild 17°C (63°F) at night to a scorching 35°C (95°F) during the day, with an average of 26°C (79°F). This month also experiences significant rainfall, with 149 mm (5.8 in) over about 15 days and humidity levels hovering around 72%. In contrast, February features a much colder climate, with temperatures dipping as low as -11°C (12°F) at night and peaking at 23°C (74°F), averaging just 6°C (43°F). This winter month has less precipitation overall, totaling 94 mm (3.7 in) for 11 days, and slightly higher humidity at 83%. For more detailed weather information, you can visit Mount Vernon weather in February.
When comparing the weather in August and March, there is a stark contrast in temperatures and precipitation. August experiences much warmer conditions, with daily averages around 26°C (79°F) and maximum temperatures reaching up to 35°C (95°F). In contrast, March has a much cooler climate, where the average temperature is only 9°C (48°F), and while it can peak at 28°C (83°F), it often has minimum temperatures dropping to -6°C (22°F). Precipitation is more frequent in August, with 149 mm (5.8 in) over about 15 days, compared to March's 91 mm (3.6 in) spread over 10 days. Additionally, March tends to be more humid at 83%, compared to August's humidity level of 72%. For more detailed information, you can check Mount Vernon weather in March.
When comparing the weather in August and April, it's clear that August is marked by significantly warmer temperatures. In August, the average temperature reaches 26°C (79°F), with highs soaring up to 35°C (95°F), while April's average is much cooler at 14°C (58°F), peaking at a maximum of 30°C (87°F). Additionally, August experiences more rainfall, with 149 mm (5.8 in) spread over 15 days compared to April's 88 mm (3.5 in) over 11 days. However, April tends to have slightly higher humidity at 81%, compared to August's 72%. For a more detailed look at April's weather, visit Mount Vernon weather in April.
When comparing the weather in August and May, it's evident that August tends to be hotter and more humid. In August, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (95°F), with an average of 26°C (79°F). In contrast, May sees cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 33°C (91°F), averaging at 19°C (67°F). Additionally, August experiences more rainfall, recording 149 mm (5.8 in) over 15 days, while May has 104 mm (4.1 in) spread across 11 days. Interestingly, while August has a slightly lower humidity level at 72%, May's humidity is slightly higher at 78%. For a more detailed look at the conditions in May, you can check Mount Vernon weather in May.
When comparing the weather in June and August, it is evident that August tends to be warmer and more humid. In August, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (95°F), averaging 26°C (79°F), whereas June offers cooler temperatures with a minimum of 12°C (54°F) and a maximum of 33°C (91°F), averaging 24°C (75°F). Additionally, August experiences higher precipitation, totaling 149 mm (5.8 in) over 15 days, compared to June's 106 mm (4.2 in) over 12 days. Interestingly, despite being slightly less humid in August at 72%, both months exhibit similar levels of moisture, contributing to a humid climate overall. For more details on the specifics of June weather, visit Mount Vernon weather in June.
In comparing the weather of July and August, we can see some notable differences. July tends to be slightly warmer with an average temperature of 27°C (81°F) and a peak of 37°C (98°F), while August's average temperature is a bit lower at 26°C (79°F), with a maximum of 35°C (95°F). Both months experience significant precipitation, but August sees more rain, totaling 149 mm (5.8 in) over 15 days, compared to July’s 139 mm (5.5 in) over 13 days. Humidity levels are also comparable, with July at 74% and August at 72%. For more detailed insights on July's weather, you can check Mount Vernon weather in July.
August typically showcases warmer temperatures than September, with minimums around 17°C (63°F) compared to September's cooler 11°C (51°F). The average temperature in August reaches a balmy 26°C (79°F), while September sees a slight dip to 23°C (74°F). Although both months experience precipitation, August is notably wetter, receiving 149 mm (5.8 in) over 15 days, compared to September's 100 mm (3.9 in) across 10 days. Humidity remains fairly high in both months, with August at 72% and September slightly higher at 75%. For a more detailed look at the weather specifics, check out Mount Vernon weather in September.
In comparing August and October weather, August is typically characterized by warmer temperatures, with average highs reaching up to 35°C (95°F) and a high humidity level of 72%. Precipitation is relatively high, averaging 149 mm (5.8 inches) over about 15 rainy days. In contrast, October brings a significant drop in temperature, with average highs of 32°C (91°F) and much cooler nights, with lows dipping to 4°C (40°F). Rainfall is less frequent, occurring on about 9 days and totaling 117 mm (4.6 inches). Interestingly, October also experiences slightly higher humidity at 81%. For more specific details about the weather in October, you can check out Mount Vernon weather in October.
August and November present starkly different weather profiles. In August, temperatures range from a mild 17°C (63°F) at night to a sizzling high of 35°C (95°F) during the day, accompanied by significant humidity at 72% and substantial rainfall of 149 mm (5.8 in) over 15 days. In contrast, November experiences much cooler temperatures, dipping as low as -4°C (24°F) at night, with an average of 10°C (50°F) and a maximum of 25°C (77°F). The month sees less precipitation at 84 mm (3.3 in) across 8 days, but a higher humidity level of 85%. For a detailed look at November weather, you can check Mount Vernon weather in November.
August and December showcase stark contrasts in weather. In August, temperatures range from a minimum of 17°C (63°F) to a scorching maximum of 35°C (95°F), with an average temperature of 26°C (79°F). The month is marked by high humidity at 72% and frequent rainfall, totaling 149 mm (5.8 in) over about 15 days. In contrast, December presents a chilly landscape, with temperatures dipping to a minimum of -9°C (16°F) and a maximum of 21°C (69°F), averaging just 6°C (44°F). Although precipitation is also seen in December, it amounts to a lower total of 97 mm (3.8 in) over approximately 10 days, accompanied by a slightly higher humidity level of 84%. For more detailed insights into the winter climate, check out Mount Vernon weather in December.
As August unfolds in Mount Vernon, it brings a noticeable shift in weather patterns compared to the milder months surrounding it. With maximum temperatures soaring up to 35°C (95°F), residents can expect a warm embrace from the summer sun, contrasted by cooler nights dipped to around 17°C (63°F). This warmth, coupled with an average temperature of 26°C (79°F), sets the stage for a season of vibrant outdoor activities, despite encountering approximately 15 days of rain that contribute to a humidity level of 72%. Such conditions not only highlight August as the warmest month of the year but also add a sense of richness to the air, making it a unique time in Mount Vernon's climate. For more insights into what to expect throughout the year, visit Mount Vernon Climate.