Last updated: February 24, 2025
In September, Stone Mountain, United States, experiences a diverse range of weather conditions, with temperatures soaring to a maximum of 36°C (97°F) and settling around an average of 24°C (75°F). The month brings cooler nights, with minimum temperatures dropping to 10°C (50°F). Humidity levels remain high at 82%, contributing to the overall comfort. Precipitation is frequent, as the area sees 113 mm (4.4 in) of rain across 9 days, making it essential for visitors to prepare for wet weather while enjoying the natural beauty of this iconic landmark.
In September, Stone Mountain begins to bid farewell to the summer heat, yet temperatures remain pleasantly warm. With a minimum of 10°C (50°F) and reaching an average of 24°C (75°F), days can still feel quite summery, especially with highs peaking at 36°C (97°F). This month showcases a gradual transition as the intensity of heat starts to wane, hinting at the cooler months ahead. The temperature rises over the late summer months, reaching a high earlier in August at 35°C (96°F), but September's warmth remains inviting for outdoor activities, making it a popular time for locals and visitors alike. As days grow shorter, the inviting warmth of September sets the stage for the rich autumn colors that follow.
In September, Stone Mountain experiences a notable shift in rainfall patterns, receiving 113 mm (4.4 in) of precipitation over 9 days. This amount mirrors the rainfall of July, suggesting a transition from the wetter summer months toward drier autumn. Occasional downpours continue into early fall, contributing to a cumulative rainfall that has been relatively consistent throughout the late summer, particularly with August's higher total of 145 mm (5.7 in). This gradual decline from the summer peaks indicates a seasonal adjustment as the region prepares for the drier months of October and November, which typically register less precipitation with averages of 123 mm (4.9 in) and 80 mm (3.1 in) respectively. Overall, September serves as a bridge between the luscious summer and the more arid fall, marking a subtle yet significant reduction in rainfall.
In September, Stone Mountain experiences a slight dip in humidity, averaging 82%, marking a gentle transition from the muggy summer months. This level is consistent with the humidity trends observed throughout late summer and early fall, where it hovers around the 81%-83% range. Notably, as the year progresses towards October, humidity levels show a steady decline, which can bring a refreshing change after the sweltering heat of summer. As autumn approaches, residents can look forward to crisper air, even as November and December introduce a return to higher humidity levels. Overall, September strikes a balance, showcasing the allure of the changing seasons while maintaining its characteristic Southern humidity.
As September rolls into Stone Mountain, the UV Index settles at a notable 9, positioning the area in the very high exposure category with a burn time of just 15 minutes. This month exemplifies a slight decline from the summer's extreme levels, yet still demands caution for outdoor enthusiasts. The trend reveals that as the year progresses from January's moderate 4 to the peak summer months, UV radiation remains significant even as autumn begins. With October not far behind, where the UV Index drops to 8, September serves as a reminder to stay vigilant against the sun's rays. For more detailed information, check out Stone Mountain UV Index.
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As the summer fades into early autumn, September in Stone Mountain boasts a remarkable 297 hours of sunshine, making it one of the sunniest months of the year. This vibrant month follows a sunny July and August, which engage residents and visitors alike with their impressive totals of 339 and 318 hours, respectively. The sunshine trend is clear: as the seasons shift, the daylight begins to taper off, yet September holds onto the radiant warmth of summer, significantly brighter than the winter months, like January's mere 169 hours. This balance of ample sunlight and the onset of cooler temperatures makes September a delightful time for outdoor activities amidst the breathtaking backdrop of Stone Mountain’s natural beauty.
As summer fades and autumn begins to set in, September in Stone Mountain, United States, offers a refreshing transition, boasting a 44% chance of sunny weather. While this is a modest improvement from the dreary days of July and June, it remains lower than the sunnier months of April and November, which typically enjoy even higher probabilities of sunshine. September's weather trend signifies a gradual uptick in sunny days compared to the summer slump, making it a delightful time for outdoor activities as the temperatures cool but remain pleasant. This gradual shift hints at the readiness of the region to embrace fall's charm while still holding onto a taste of summer.
As summer gives way to autumn in Stone Mountain, United States, September marks a gentle transition in daylight duration. With 12 hours of daylight, the month reflects a slight decline from the peak of 14 hours experienced in July and June. This gradual reduction underscores the shift towards shorter days as fall approaches. While September still boasts significantly more daylight compared to the winter months, which begin at just 10 hours in October and decrease further into December, it also signals the start of cooler evenings and the onset of colorful foliage. The trend of decreasing daylight, coupled with the lingering warmth of summer, creates a perfect backdrop for outdoor activities and enjoying the natural beauty of the area before winter sets in.
As September rolls into Stone Mountain, the average wind speed experiences a slight uptick, reaching 2.3 m/s (5 mph). This marks a subtle recovery from the calmest months of summer, where July and August averaged just 2.0 m/s and 2.1 m/s, respectively. The gentle breeze of September, while still on the lower end compared to the year's earlier months, hints at a peaceful transition towards the invigorating winds of autumn. Interestingly, following this month, an increase is expected as October averages rise to 2.7 m/s, signaling the start of crisper, more refreshing air as the landscape prepares for the vibrant colors of fall.
The weather in Stone Mountain 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 Stone Mountain and find detailed weather information for every month.
In September, the weather is characterized by warm temperatures ranging from a minimum of 10°C (50°F) to a maximum of 36°C (97°F) with an average of 24°C (75°F). This month typically experiences 113 mm (4.4 in) of precipitation over 9 days and has a humidity level of 82%. In contrast, January presents a much cooler climate, with temperatures dropping to a minimum of -10°C (14°F) and averaging only 7°C (46°F), while the maximum temperature reaches 25°C (77°F). The precipitation levels in January are slightly lower at 105 mm (4.1 in), also occurring over 9 days, but the humidity increases to 86%. For more specific details about January weather, you can visit Stone Mountain weather in January.
September and February exhibit stark contrasts in weather. September boasts warmer temperatures, with an average of 24°C (75°F) and highs reaching up to 36°C (97°F), while February's temperatures are significantly cooler, averaging 11°C (51°F) with a maximum of 26°C (80°F). Additionally, September experiences considerable rainfall, with 113 mm (4.4 in) over about 9 days, compared to February, which has even more precipitation at 147 mm (5.8 in) across 13 days. Both months have similar humidity levels, around 82% in September and 84% in February, but the seasonal feel is distinctly different, as highlighted in this Stone Mountain weather in February.
In comparing the weather of September and March, notable differences emerge. September boasts warmer temperatures, with a minimum of 10°C (50°F) and an average of 24°C (75°F), peaking at a scorching 36°C (97°F). In contrast, March experiences much cooler conditions, starting at a minimum of -5°C (23°F) and averaging 13°C (56°F), with a maximum of 29°C (85°F). Both months face considerable precipitation, but September sees 113 mm (4.4 in) over 9 days, whereas March has slightly more rainfall with 129 mm (5.1 in) over 13 days. Humidity remains similar in both months, with September at 82% and March at 83%. For a more detailed insight into March weather, you can check Stone Mountain weather in March.
When comparing the weather in September and April, significant differences are evident. September boasts higher temperatures, with a minimum of 10°C (50°F) and an average of 24°C (75°F), reaching up to 36°C (97°F) at its peak. In contrast, April experiences cooler temperatures, starting from a minimum of 0°C (33°F) and averaging 17°C (62°F), with a maximum of 29°C (84°F). Both months see considerable precipitation, with September recording 113 mm (4.4 in) over 9 days and April slightly higher at 121 mm (4.8 in) over 8 days. Humidity levels are similar, with September at 82% and April at 81%. For a more detailed look at April's weather, check out Stone Mountain weather in April.
In September, the weather typically showcases a wider temperature range, with minimums around 10°C (50°F) and maximums soaring up to 36°C (97°F), averaging 24°C (75°F). This month experiences more rainfall, with precipitation amounting to 113 mm (4.4 in) over about 9 days, accompanied by high humidity levels at 82%. In contrast, May presents milder conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 34°C (94°F) and an average of 22°C (71°F). The precipitation in May is slightly lower at 100 mm (4.0 in) over 11 days, and humidity remains comparable at 81%. For a detailed look at May weather, check out Stone Mountain weather in May.
When comparing the weather in September and June, we see some interesting variations. September has a minimum temperature of 10°C (50°F) and reaches a maximum of 36°C (97°F), presenting a broader range of temperatures. In contrast, June starts warmer with a minimum of 13°C (56°F) and a maximum of 33°C (92°F), making it generally milder. Precipitation levels are slightly lower in September at 113 mm (4.4 in) over 9 days, compared to June's 127 mm (5.0 in) over 16 days. Humidity is quite similar in both months, with September at 82% and June at 81%. For more specifics on weather conditions in June, you can refer to Stone Mountain weather in June.
The weather in September showcases a broader temperature range, with minimums dipping to 10°C (50°F) and maximums soaring up to 36°C (97°F), while maintaining an average of 24°C (75°F). In contrast, July typically experiences warmer temperatures, starting from a minimum of 16°C (61°F) and averaging around 26°C (80°F), with a peak of 35°C (95°F). Despite both months receiving the same amount of precipitation at 113 mm (4.4 in), July sees significantly more rainy days, averaging 18 days compared to September's 9 days. Both months present high humidity levels, but September's average humidity is slightly lower at 82%, compared to July's 83%. For a detailed look at July weather, visit Stone Mountain weather in July.
In comparing the weather of September and August, September experiences a more significant temperature variation, with minimum temperatures dropping to 10°C (50°F), while August maintains warmer lows at 16°C (62°F). The average temperatures are slightly lower in September at 24°C (75°F) compared to August's 26°C (79°F). However, September sees slightly higher maximum temperatures, reaching up to 36°C (97°F) against August's maximum of 35°C (96°F). In terms of precipitation, September has 113 mm (4.4 in) spread over 9 days, which is less than August’s 145 mm (5.7 in) over 15 days. Humidity levels remain relatively consistent, with September at 82% and August at 81%. For further insights into August weather, you can visit Stone Mountain weather in August.
In September, temperatures typically range from a minimum of 10°C (50°F) to a maximum of 36°C (97°F), with an average of 24°C (75°F). The month is characterized by high humidity at 82% and considerable rainfall, totaling 113 mm (4.4 in) over 9 days. In contrast, October experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 19°C (66°F), while maintaining a similar maximum of 36°C (98°F). Precipitation increases slightly to 123 mm (4.9 in) over 8 days, and humidity decreases to 78%. For more detailed insights, you can check Stone Mountain weather in October.
September and November display markedly different weather patterns. In September, temperatures range from a mild 10°C (50°F) at night to a scorching 36°C (97°F) during the day, averaging around 24°C (75°F). The month experiences considerable precipitation, with 113 mm (4.4 in) falling over 9 days and humidity levels reaching 82%. In contrast, November brings a cooler climate, with nighttime temperatures dropping to as low as -5°C (23°F) and daytime highs peaking at 26°C (79°F), averaging 11°C (52°F). Precipitation decreases to 80 mm (3.1 in) over 8 days, and humidity rises slightly to 86%. For a closer look at November weather, you can visit Stone Mountain weather in November.
In September, the weather is generally warm, with temperatures ranging from a mild 10°C (50°F) at night to a sweltering heat of 36°C (97°F) during the day. With an average temperature of 24°C (75°F) and high humidity at 82%, it's a month marked by summer's lingering warmth, alongside 113 mm (4.4 in) of precipitation over about 9 days.
Contrastingly, December ushers in a much cooler climate, with nighttime lows dipping to -6°C (21°F) and daytime highs reaching a comfortable 24°C (75°F), resulting in an average temperature of 9°C (48°F). December sees slightly higher precipitation at 137 mm (5.4 in) over 11 days and increased humidity at 89%. For those looking for more detailed insights into December weather in specific locations, you can check Stone Mountain weather in December.
As September rolls in, Stone Mountain experiences a noticeable transition in its weather, offering a mix of warmth and refreshing breezes. Unlike the scorching peak summer months, temperatures average a comfortable 24°C (75°F), while maximums can still soar to 36°C (97°F), making outdoor activities delightful. The humidity hovers at a relatively high 82%, contributing to the lush landscape but also hinting at potential rain. With around 113 mm of precipitation over 9 days, the arrival of fall is felt as nature rejuvenates, setting the stage for vibrant autumn colors. For those interested in understanding the broader climate trends throughout the year, check out Stone Mountain Climate.