September Weather in Nemacolin, United States

Last updated: February 24, 2025

In Nemacolin, United States, the weather in September showcases a delightful transition into autumn with temperatures ranging from a maximum of 33°C (92°F) to a cooler minimum of 5°C (40°F). The average temperature settles around 20°C (68°F), providing a pleasant climate for outdoor activities. While the month brings 125 mm (4.9 in) of rainfall spread across 9 days, the humidity level remains moderate at 73%, adding a hint of moisture to the air. Overall, September in Nemacolin offers a richly textured weather experience, perfect for savoring the late-summer outdoor charm.

September Temperature in Nemacolin

In September, Nemacolin experiences a delightful transition as the summer warmth begins to ebb, showcasing a minimum temperature of 5°C (40°F) and an average of 20°C (68°F). The peak temperatures can reach up to 33°C (92°F), providing plenty of sunny days tempered by cooler nights. This month stands out as the tail end of summer, reflecting a gradual cooling trend in temperatures which will continue into the fall. The blend of warm days and crisp evenings makes September an ideal time for outdoor activities, inviting locals and visitors to savor the last of the season's warmth before autumn takes hold.

September Weather in Nemacolin: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nemacolin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec323643536370757368584337
Data source: Temperature data for Nemacolin generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Nemacolin

In September, Nemacolin experiences a notable shift in precipitation patterns, with 125 mm (4.9 in) of rainfall spread across only 9 days. This marks a slight decrease from the preceding months, particularly August, which saw higher precipitation with 110 mm (4.3 in) over 15 days. The trend indicates that while summer still lingers, the onset of fall begins to dry the atmosphere, resulting in fewer rainy days. September’s rainfall not only contributes to the lush landscapes characteristic of the region but also sets the stage for the gradual decline in precipitation that is expected as autumn progresses. Overall, this month's weather encapsulates a transitional phase, introducing cooler temperatures while maintaining a respectable amount of moisture.

September Precipitation Trends in Nemacolin

The chart displays monthly precipitation patterns in Nemacolin, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec8712411712914917215311012512186116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Nemacolin

As September arrives in Nemacolin, the humidity stabilizes at a comfortable 73%, marking a notable shift from the more oppressive levels of the earlier summer months. This consistent drop from the peak of 82% in July and August provides a refreshing respite, allowing residents and visitors to enjoy the outdoors more freely. The trend of decreasing humidity from late spring through early autumn is evident, with levels gradually declining from 82% in May to September's figure. Just as one might expect the crispness of fall to set in, humidity levels see a gradual rise again starting in October, leading back to the higher averages typical of late fall and winter. This cyclical pattern showcases the region's unique climate, blending the warmth of summer with the anticipation of autumn's arrival.

September Average Humidity in Nemacolin

This chart illustrates the average monthly humidity levels in Nemacolin, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nemacolin

In September, the UV Index in Nemacolin, United States, reflects a slight decline from the summer's peak, registering at 8, which falls into the very high exposure category. This indicates that while the days are gradually getting shorter, caution is still necessary, with a burn time as short as 15 minutes for unprotected skin. The trend throughout the year demonstrates a notable increase from 3 in January to a blistering 10 during the height of summer months. As the seasons change, residents and visitors should remain vigilant about sun safety, especially with September still offering plenty of sunshine. For more detailed insights, visit Nemacolin UV Index.

Maximum UV Index Levels in Nemacolin for September

The chart shows the monthly maximum UV Index (UVI) for Nemacolin in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Nemacolin September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Nemacolin

As summer transitions to autumn, September shines brightly in Nemacolin, boasting an impressive 273 hours of sunshine. This month continues the trend of abundant daylight, following the peak summer months of July and August, which recorded 329 and 308 hours respectively. While the days begin to shorten, September still enjoys a substantial amount of sunlight, significantly more than the earlier months of the year. With the sun casting its warm glow, this enchanting blend of seasonal change invites residents and visitors alike to savor the lingering warmth of early fall, before the sunshine gradually diminishes in the approaching cooler months. The delightful weather is a perfect backdrop for outdoor activities, making September a golden time to explore all that Nemacolin has to offer.

Monthly Sunshine Duration in Nemacolin: September Highlighted

The September sunshine duration represents the total number of hours Nemacolin experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec102h130h222h230h264h296h329h308h273h218h175h135h
Data source: Nemacolin September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nemacolin During September

September in Nemacolin, United States, marks a delightful transition to autumn, boasting a notable increase in sunny weather. With a 50% chance of sunshine, this month stands out as one of the sunniest compared to the rest of the year. Following the summer months, which hover around the mid-40s for sunny days, September reveals a promising trend toward clear skies. This uptick in sunshine not only enhances outdoor activities but also sets a perfect backdrop for those looking to enjoy the crisp air and vibrant foliage. As the weather cools, the increased sunlight in September is a welcome treat for both locals and visitors alike.

Percentage of Sunny Days in September in Nemacolin

The chart illustrates the percentage of sunny days in Nemacolin throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Nemacolin experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%21%46%42%34%38%42%41%50%35%39%28%
Data source: Nemacolin September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nemacolin in September

As summer wanes and September arrives in Nemacolin, the days begin to shorten, offering 12 hours of daylight—a gentle decline from the peak 14 hours experienced in June and July. This trend of gradually decreasing daylight extends into autumn, mirroring nature's transition and preparing the landscape for the cooler months ahead. Following the vibrant energy of summer, September's light invites a sense of cozy introspection, as the community embraces the rich colors and cooler breezes of fall. As the daylight hours diminish, it serves as a reminder of the cyclical beauty of the seasons, a prelude to the crisp air and early nights of October.

Average Daylight Hours in Nemacolin for September

The chart illustrates the variation in daylight duration in Nemacolin throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 40m10h 41m11h 58m13h 17m14h 24m14h 57m14h 39m13h 40m12h 24m11h 5m9h 56m9h 21m
Data source: Nemacolin daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Nemacolin

As summer gently gives way to autumn in Nemacolin, September sees a refreshing shift in the wind. With an average speed of 2.8 m/s (6 mph), the winds pick up slightly from the calmness of August, hinting at the seasonal transition ahead. This month’s breeze mirrors the earlier months of spring, suggesting a return to livelier conditions after a series of mild summer winds. Notably, September's winds feel invigorating yet bearable, serving as a prelude to the crisp, more robust gusts that accompany the fall months. As temperatures cool and nature prepares for change, the September wind offers both a whisper of the summer past and a promise of the autumn beauty to come.

Average September Wind Speed in Nemacolin

The chart displays monthly wind speed patterns in Nemacolin, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.13.53.22.42.42.22.02.8 m/s2.83.13.2
Data source: Nemacolin September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Nemacolin Compares to Other Months

The weather in Nemacolin 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 Nemacolin and find detailed weather information for every month.

In September, temperatures range from a cool 5°C (40°F) at night to a warm high of 33°C (92°F) during the day, with an average temperature of 20°C (68°F). This month experiences significant rainfall, with about 125 mm (4.9 in) falling over 9 days, and humidity levels around 73%. In contrast, January brings much colder weather, with temperatures dipping as low as -23°C (-10°F) at night and peaking at a relatively mild 22°C (72°F) during the day, averaging 0°C (33°F). Although there is less precipitation at 87 mm (3.4 in) over 12 days, the humidity is higher at 88%. For more insights on the weather specifics, check out Nemacolin weather in January.

The weather in September contrasts sharply with that of February. In September, temperatures range from a cheerful average of 20°C (68°F) to a high of 33°C (92°F), with relatively moderate precipitation of 125 mm (4.9 in) spread over nine days, and humidity averaging 73%. In stark contrast, February experiences much colder temperatures, with averages around 2°C (37°F) and possible lows plunging to -20°C (-3°F). Despite similar total precipitation at 124 mm (4.9 in), February sees rain or snow over 15 days, resulting in a higher humidity level of 88%. For a closer look at February weather specifics in Nemacolin, visit Nemacolin weather in February.

In comparing the weather of September and March, we see two distinctly different climates. September boasts a range of temperatures from a mild 5°C (40°F) at night to a warm 33°C (92°F) during the day, with an average temperature of 20°C (68°F). This month experiences about 125 mm (4.9 in) of precipitation spread over 9 days, accompanied by a relative humidity of 73%. In contrast, March presents a more frigid scenario, with temperatures ranging from a chilly -15°C (5°F) to a comfortable 26°C (79°F), averaging only 6°C (43°F). Although March has slightly lower precipitation at 117 mm (4.6 in) over 13 days, the humidity is significantly higher at 88%. For more detailed insights into March weather, check out Nemacolin weather in March.

When comparing the weather in September and April, notable differences emerge. September typically enjoys warmer temperatures, with an average of 20°C (68°F) and highs reaching up to 33°C (92°F), while April's average temperature is cooler at 11°C (53°F) and maxing out at 29°C (84°F). Both months experience significant rainfall—September sees about 125 mm (4.9 in) over 9 days, while April has slightly more precipitation at 129 mm (5.1 in) over 15 days. Humidity levels also vary, with September averaging 73%, compared to a higher 86% in April, contributing to a more humid atmosphere during the spring month. For a more detailed look at weather conditions in April, check out Nemacolin weather in April.

When comparing the weather in September and May, notable differences emerge. September typically experiences a wider temperature range, with minimums around 5°C (40°F) and maximums reaching 33°C (92°F). In contrast, May starts cooler, with minimums dropping to -1°C (30°F) but can peak at 31°C (88°F). Precipitation is slightly higher in May, with 149 mm (5.9 in) over 17 days, compared to September's 125 mm (4.9 in) across 9 days. Furthermore, May tends to have higher humidity at 82%, while September averages at 73%. For a closer look at May weather conditions, you can check Nemacolin weather in May.

September and June offer distinct weather patterns. In September, temperatures range from a minimum of 5°C (40°F) to a maximum of 33°C (92°F), with an average of 20°C (68°F). The month sees about 125 mm (4.9 in) of precipitation across 9 days, accompanied by a humidity level of 73%. In contrast, June typically experiences slightly warmer conditions, with temperatures ranging from a low of 7°C (45°F) to a high of 32°C (90°F), and an average of 21°C (70°F). However, it has higher rainfall, totaling 172 mm (6.8 in) spread over 17 days, resulting in a higher humidity level of 84%. For more detailed information about June weather, you can check Nemacolin weather in June.

When comparing the weather in September to July, September generally offers milder temperatures, with a minimum of 5°C (40°F) and an average of 20°C (68°F), while July's temperatures are warmer, starting at a minimum of 13°C (56°F) and averaging 24°C (75°F). Both months feature the potential for high temperatures, with September reaching up to 33°C (92°F) and July slightly higher at 34°C (94°F). Precipitation is more prominent in July, with 153 mm (6.0 in) across 15 days, compared to September's 125 mm (4.9 in) over 9 days. Additionally, humidity is higher in July at 82%, compared to September's 73%. For a more detailed look at July weather, visit Nemacolin weather in July.

In comparing the weather of September and August, September experiences a wider temperature range with minimums dipping to 5°C (40°F) and maximums reaching 33°C (92°F), while August maintains milder temperatures, starting at a minimum of 12°C (54°F) and peaking at 34°C (93°F). The average temperature in September is slightly lower at 20°C (68°F) compared to August's 23°C (73°F). Precipitation levels in September are slightly higher at 125 mm (4.9 in) over 9 days, compared to August's 110 mm (4.3 in) over 15 days, indicating that September may experience more substantial rainfall concentrated over fewer days. Humidity remains consistent at 73% for both months, but the overall feel of the weather can vary significantly due to the temperature shifts. For a more detailed look at August conditions, check out Nemacolin weather in August.

September and October showcase a notable transition in weather patterns. In September, temperatures range from a mild 5°C (40°F) to a warm 33°C (92°F), with an average of 20°C (68°F). The month is characterized by relatively high humidity at 73% and six rainy days, contributing to a total precipitation of 125 mm (4.9 in). In contrast, October brings cooler temperatures, with a minimum of -1°C (31°F) and an average of 14°C (58°F), although the maximum still reaches 32°C (90°F). This month experiences slightly less precipitation at 121 mm (4.8 in) but has more rainy days, totaling 13. Additionally, humidity rises to 81%, indicating a shift towards a more pronounced autumn feel. For more specific insights, check out Nemacolin weather in October.

September and November exhibit stark contrasts in weather patterns. In September, temperatures range from a minimum of 5°C (40°F) to a warm average of 20°C (68°F) and can peak at a high of 33°C (92°F). The month experiences considerable rainfall, with precipitation measuring 125 mm (4.9 in) over 9 days, alongside a moderate humidity level of 73%. In contrast, November sees much cooler temperatures, with a minimum of -8°C (18°F) and an average of 6°C (43°F), although it can still reach a high of 26°C (79°F). The precipitation decreases slightly to 86 mm (3.4 in) over 11 days, but humidity rises to a notable 89%. For a closer look at the conditions during this time, you can check Nemacolin weather in November.

September's weather presents a warm and varied climate, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 33°C (92°F) and an average of 20°C (68°F). The month receives a significant amount of rainfall, totaling 125 mm (4.9 in) over about 9 days, accompanied by a humidity level of 73%. In contrast, December experiences a much colder atmosphere, with temperatures dropping to a minimum of -15°C (5°F) and an average of 3°C (38°F), while the maximum reaches 19°C (66°F). While precipitation is slightly lower at 116 mm (4.6 in) over 12 days, the humidity increases to 86%, adding to the chill of the winter season. For a more detailed insight into December's climate, you can visit Nemacolin weather in December.

Compare Nemacolin's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Nemacolin

As summer transitions to autumn, September in Nemacolin offers a delightful mix of warm days and cooler evenings, making it distinct from the sweltering heat of July and August. While temperatures remain pleasant, the average temperature begins to dip, allowing for more refreshing outdoor activities. The month sees a notable increase in precipitation, hinting at the upcoming seasonal shifts, with rainfall spread across several days. Humidity levels also remain high, yet not oppressive, as the air starts to cool down. For a deeper understanding of what to expect this month and how it fits into the yearly climate patterns, check out Nemacolin Climate.