Last updated: February 24, 2025
In Bentonville, United States, September ushers in a dynamic weather profile marked by warm temperatures and a hint of moisture. The month sees daytime highs reaching up to 34°C (93°F), while the average tempts at a comfortable 23°C (73°F). Nights can be cooler, dipping to a refreshing 7°C (45°F), creating a pleasant contrast. With 70 mm (2.8 in) of precipitation spread over 6 days, residents experience occasional rain, contributing to an overall humidity level of 64%. This blend of warmth and mild moisture makes September an inviting time to enjoy the natural beauty of Bentonville.
In September, Bentonville experiences a delightful transition from the summer heat to the cooler embraces of autumn. With minimum temperatures settling around 7°C (45°F) and averages reaching a comfortable 23°C (73°F), this month strikes a perfect balance for outdoor activities. The maximum temperatures can soar to 34°C (93°F), offering a last taste of summer warmth before the chill of October sets in. As the leaves begin to change, the pleasant temperatures invite residents and visitors alike to enjoy the vibrant local parks and outdoor events, making September a captivating month in Bentonville's climate calendar.
In September, Bentonville experiences a notable dip in precipitation, with only 70 mm (2.8 in) falling over just 6 days. This marks a significant decrease from the wetter months prior, such as August, which saw an impressive 151 mm (5.9 in) across 13 days. The transition to fall is evident, as September's rainfall is among the lowest for the year, paving the way for drier conditions in the coming months. As the landscape shifts from summer's lushness, residents can expect more sun and fewer rainy days ahead, setting the stage for the crisp autumn air.
In Bentonville, United States, September marks a notable shift in humidity levels, dropping to a comfortable 64%. This decrease follows the peak humidity of summer months, which often lingered around 78% in July and 68% in August. The transition from summer to early fall showcases a trend where humidity begins to decline, providing a more pleasant atmosphere as the region approaches autumn. As the year progresses, humidity levels will gradually rise again, culminating in the dampness of December, which sees a significant 87% humidity. This fluctuation highlights the seasonal rhythm of Bentonville, where September stands out as a refreshing reprieve before the moist chill of winter sets in.
As summer transitions into fall, September in Bentonville showcases a notable UV Index of 9, classified as very high—a slight decrease from the peak summer months but still necessitating caution. With a burn time of just 15 minutes, residents and visitors alike should remain vigilant when enjoying outdoor activities. The UV Index trend for the year reaches its peak in June and July, with extreme levels of 11, and while it tapers slightly in August and September, the sun's intensity continues to warrant protective measures. Understanding these fluctuations helps you stay safe in the sun, ensuring that your time outdoors is both enjoyable and responsible. For more detailed insights, check the Bentonville UV Index.
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As the warm embrace of September settles over Bentonville, the days still bask in a generous 290 hours of sunshine, making it a delightful extension of summer. This month follows a peak in July, where residents enjoyed a remarkable 352 hours of bright days, and while September sees a slight decline, its sunlit hours still outshine those of earlier months. The transition from the vibrant summer to the gentle onset of fall is palpable, with sunshine hours gradually tapering down from August's 316 hours. This trend highlights a picturesque seasonal shift, inviting the community to enjoy outdoor activities and cherish the lingering warmth before autumn's arrival.
In Bentonville, United States, September marks a delightful transition into more consistently sunny weather, boasting a 71% chance of sun. This significant increase follows a summer season where July and August enjoyed peaks of 58% and 55% respectively. As the year progresses from the cold grip of winter and the fluctuating conditions of early spring, the likelihood of clear skies noticeably rises, making September one of the sunniest months. This trend not only reflects a welcome shift towards brighter days but also presents an ideal opportunity for outdoor activities and enjoying the natural beauty of the region before the arrival of fall.
As September unfolds in Bentonville, the daylight duration begins to wane, with approximately 12 hours of light gracing the day. This marks a gentle transition from the long, sun-drenched days of summer—where June, July, and August enjoy a peak of 14 hours—to the cooler, shorter days of autumn. Following a gradual ascent from 9 hours in January to a mid-summer high, September serves as a poignant reminder of the changing seasons, as daylight diminishes subtly, leading into October's 11 hours. This rhythmic ebb and flow of sunlight not only paints the landscape in captivating hues but also invites residents to savor the waning warmth before the chill of winter arrives.
As September arrives in Bentonville, the wind begins to pick up gently, with an average speed of 2.9 m/s (6 mph). This marks a subtle transition from the typically calmer summer months of July and August, where speeds dipped to 2.2 m/s (5 mph) and 2.6 m/s (6 mph), respectively. Although September’s winds are relatively mild compared to the energetic gusts of late fall and winter, which can reach up to 3.9 m/s (9 mph) in December, there is a clear upward trend leading into the autumn months. The gradual increase in wind speed serves as a reminder of the changing seasons, setting the stage for the brisk breezes that will soon invigorate the landscape.
The weather in Bentonville 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 Bentonville and find detailed weather information for every month.
September and January exhibit strikingly different weather patterns. In September, temperatures range from a mild 7°C (45°F) at night to a warm average of 23°C (73°F), peaking at a hot 34°C (93°F) during the day, accompanied by moderate precipitation of 70 mm (2.8 in) over about 6 days. The humidity sits at a comfortable 64%, making for pleasant conditions. In contrast, January brings much colder temperatures, with a minimum of -17°C (1°F) and an average of just 3°C (38°F), peaking at a still chilly 22°C (71°F). Precipitation increases slightly to 84 mm (3.3 in), spread over 8 days, and humidity rises to 81%, resulting in a much more damp and chilly feel. For more specifics about the conditions in January, you can visit Bentonville weather in January.
September and February present strikingly contrasting weather patterns. In September, temperatures range from a mild 7°C (45°F) at night to a warm 34°C (93°F) during the day, with an average of 23°C (73°F). The month sees about 70 mm (2.8 in) of precipitation over approximately six days, with humidity around 64%. In stark contrast, February experiences much colder conditions, with minimum temperatures plummeting to -25°C (-12°F), an average of 5°C (40°F), and a maximum of 27°C (81°F). This month also has higher precipitation levels at 96 mm (3.8 in) across ten days and a humidity level of 78%. For more detailed information, check out the Bentonville weather in February.
In September, temperatures in Bentonville range from a pleasant minimum of 7°C (45°F) to a warm maximum of 34°C (93°F), with an average of 23°C (73°F). The month experiences moderate rainfall, totaling around 70 mm (2.8 in) over approximately 6 days, and humidity averages at 64%. In contrast, March brings a much cooler climate, with minimum temperatures plummeting to -14°C (7°F) and maximums reaching 30°C (87°F), leading to an average of 11°C (52°F). Precipitation in March is significantly higher, totaling 145 mm (5.7 in) over 13 days, and humidity levels are elevated at 76%. For a detailed overview of March weather, you can check Bentonville weather in March.
When comparing the weather in September and April, September tends to be warmer and drier. September features average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 34°C (93°F), with a total precipitation of 70 mm (2.8 in) over approximately 6 days. In contrast, April experiences cooler temperatures, with minima dropping to -4°C (25°F) and an average high of 31°C (88°F). This month also sees significantly more rainfall, totaling 177 mm (7.0 in) across about 11 days. Additionally, humidity levels are higher in April at 78%, compared to September’s 64%. For more detailed information, you can check Bentonville weather in April.
In comparing the weather between September and May, we see notable differences in temperature and precipitation. September tends to be warmer, with average temperatures around 23°C (73°F) and maximums reaching up to 34°C (93°F), while May has cooler average temperatures of 19°C (67°F) and maximums of 32°C (91°F). However, May is significantly wetter, receiving 175 mm (6.9 in) of precipitation over 13 days, compared to September’s 70 mm (2.8 in) over just 6 days. Additionally, May exhibits higher humidity levels at 83%, in contrast to September's 64%. For more detailed insights, check out Bentonville weather in May.
In comparing the weather between September and June, June generally offers warmer temperatures, with daily averages around 24°C (76°F) compared to September's average of 23°C (73°F). However, September experiences a wider temperature range, with maximums reaching up to 34°C (93°F), while June's highs reach 35°C (95°F). Precipitation is more frequent in June, with an average of 10 rainy days and total rainfall of 94 mm (3.7 in), compared to only 6 rainy days and 70 mm (2.8 in) in September. Additionally, humidity levels are notably higher in June at 83%, while September has a more comfortable 64%. For a more detailed look at the weather specifics, check Bentonville weather in June.
When comparing the weather in September and July, it’s evident that July tends to be warmer and more humid. In July, the minimum temperature is around 15°C (60°F) and can rise to a maximum of 37°C (99°F), with an average of 26°C (79°F). In contrast, September sees a drop in temperatures, with a minimum of 7°C (45°F) and a maximum of 34°C (93°F), averaging 23°C (73°F). While July experiences more precipitation with 96 mm (3.8 in) over 11 days, September has less rainfall at 70 mm (2.8 in) spread across just 6 days. Additionally, the humidity in July is higher at 78%, compared to September's 64%. For more detailed information, you can check Bentonville weather in July.
In comparing the weather of September and August, September offers a wider temperature range, with minimums dropping to 7°C (45°F) and maximums reaching up to 34°C (93°F), whereas August maintains warmer nights with minimums around 14°C (57°F) and maximums peaking at 35°C (96°F). Precipitation also differs significantly; September sees 70 mm (2.8 in) of rain over 6 days, while August experiences much heavier rainfall of 151 mm (5.9 in) across 13 days. Humidity remains relatively close, with September averaging 64% compared to August's 68%. For a more detailed look at August's weather patterns, you can visit Bentonville weather in August.
September generally experiences warmer temperatures with an average of 23°C (73°F) and highs reaching up to 34°C (93°F). In contrast, October sees a significant drop in average temperature to 15°C (60°F), with nighttime lows dipping to -3°C (27°F). Precipitation also increases in October, accumulating to 160 mm (6.3 in) over 10 days compared to a milder 70 mm (2.8 in) over just 6 days in September. Additionally, humidity rises slightly in October to 70%, reflecting the cooler and wetter conditions. For more detailed information, you can check Bentonville weather in October.
September and November present starkly contrasting weather patterns. In September, temperatures range from a mild 7°C (45°F) at night to a warm 34°C (93°F) during the day, accompanied by an average temperature of 23°C (73°F). The month sees fairly low precipitation, totaling 70 mm (2.8 in) over about 6 days, with humidity levels around 64%. In contrast, November experiences a much cooler climate, with minimum temperatures dropping to -10°C (14°F) and an average of just 9°C (48°F). The maximum reaches a warmer 27°C (80°F), but precipitation remains similar at 68 mm (2.7 in) over 8 days, with a noticeable increase in humidity to 83%. For more details, visit Bentonville weather in November.
September and December weather in Bentonville display distinct contrasts. In September, temperatures range from a comfortable minimum of 7°C (45°F) to a high of 34°C (93°F), with an average of 23°C (73°F). The month experiences moderate rainfall of 70 mm (2.8 in) over about 6 days, accompanied by a humidity level of 64%. In contrast, December sees much colder temperatures, with a minimum of -10°C (15°F) and an average of only 6°C (43°F), while the maximum reaches 24°C (75°F). The precipitation is slightly lower at 69 mm (2.7 in) over 7 days, but the humidity is notably higher at 87%. For a more detailed look at December's conditions, visit Bentonville weather in December.
September in Bentonville marks a transition as the summer heat begins to wane, providing a refreshing contrast to the warmer months. The average temperatures are comfortably mild, allowing for pleasant outdoor activities. While the humidity remains relatively high, the significant drop in maximum temperatures compared to July and August offers a welcome relief. Additionally, September sees a modest amount of rainfall over few days, making it different from the often drier late summer. This unique climate sets the stage for the transition into fall, inviting both locals and visitors to enjoy the vibrant beauty of the changing season. For more details on Bentonville's weather patterns throughout the year, explore Bentonville Climate.