September Weather in Massanutten, United States

Last updated: February 24, 2025

In September, Massanutten, United States experiences a delightful transition from summer to autumn. The temperature varies significantly, with peaks reaching a maximum of 34°C (93°F) and dipping to a minimum of 3°C (37°F), while the average settles at a comfortable 20°C (68°F). With an average humidity of 68%, the air retains a pleasant warmth, though occasional rain can be expected. Rainfall accumulates to about 95 mm (3.8 in) over 9 days, adding a refreshing touch to the landscape. Whether soaking up the sun or enjoying cooler evenings, September in Massanutten offers a unique blend of warmth and rejuvenating rainfall.

September Temperature in Massanutten

In September, temperatures in Massanutten, United States begin to showcase a delightful early autumn transition. The minimum temperature settles at about 3°C (37°F), providing a crispness that hints at the cooler days ahead. As the month progresses, temperatures rise to an average of 20°C (68°F), making it a comfortable time for outdoor activities. The maximum temperature can soar up to 34°C (93°F), occasionally teasing summer with its warmth. This blend of moderate averages coupled with warm peaks marks September as a month of contrasts, where the remnants of summer gradually yield to the anticipated embrace of fall.

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

The chart illustrates September temperature patterns in Massanutten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343944546371767468584338
Data source: Temperature data for Massanutten generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Massanutten

In September, Massanutten experiences a significant amount of rainfall, with 95 mm (3.8 in) recorded over 9 days. This level of precipitation is quite consistent with the wetter months preceding it, particularly August, which saw 97 mm (3.8 in). September’s rainfall contributes to the overall trend of abundant moisture that characterizes the late summer and early fall months, poised just before the autumnal decrease in precipitation that typically starts in October. The steady distribution of rainfall during this time supports the lush landscapes of the region, making it an ideal setting for outdoor activities as the weather begins to cool. Despite a slight drop from the higher precipitation levels earlier in the summer, September still holds its ground as a month of ample rainfall, sustaining the vibrant ecosystems of Massanutten.

September Precipitation Trends in Massanutten

The chart displays monthly precipitation patterns in Massanutten, 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.
JanFebMarAprMayJunJulAugSepOctNovDec57876699105886597951007481
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Massanutten

As summer wanes and September arrives in Massanutten, the humidity level takes a gentle uptick, settling at 68%. This marks a noticeable transition from the drier air of August, which boasted a comfortable 59% humidity, inviting a more refreshing feel as the seasons shift. Overall, the data reveals a gradual decline in humidity from the winter months, where it peaks at 86% from January to March, before dropping to its lowest point in July at 70%. With October approaching, humidity levels will again rise, highlighting a recurring seasonal pattern characterized by higher humidity in the fall and winter months. As such, September serves as a bridge, ushering in the more humid months ahead while still retaining some of summer's lingering charm.

September Average Humidity in Massanutten

This chart illustrates the average monthly humidity levels in Massanutten, 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.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Massanutten

In September, Massanutten experiences a UV Index of 9, classifying it as very high exposure, which means you're at increased risk of harm from unprotected sun exposure. With a burn time of just 15 minutes, it's essential to take precautions if you're spending time outdoors. This trend follows a summer season characterized by similarly intense UV levels, peaking at an extreme index of 11 in May. As the month progresses into October, a notable decline to a high index of 7 indicates the approaching autumn, but the lingering September sun can still pose a significant risk. For more details on UV levels throughout the year, check out Massanutten UV Index.

Maximum UV Index Levels in Massanutten for September

The chart shows the monthly maximum UV Index (UVI) for Massanutten 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579111010109753
Data source: Massanutten 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 Massanutten

As summer gently transitions into autumn, September in Massanutten offers a delightful blend of warmth and sunshine, boasting 267 hours of bright days. This month marks a gradual decline from the peak of 354 hours in July but remains a splendid time to enjoy the outdoors as temperatures cool and foliage begins to change. Following a vibrant summer, where June and July dazzled with their sunshine, September maintains a comfortable glow, reminiscent of May's 283 hours. As the year winds down, it becomes clear that this enchanting destination basks in ample sunlight, presenting an ideal setting for colorful hikes and tranquil days spent in nature's embrace.

Monthly Sunshine Duration in Massanutten: September Highlighted

The September sunshine duration represents the total number of hours Massanutten 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.
JanFebMarAprMayJunJulAugSepOctNovDec152h182h256h262h283h311h354h309h267h247h224h193h
Data source: Massanutten September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Massanutten During September

As September rolls into Massanutten, the chance of sunshine brightens to 58%, making it one of the sunniest months of the year. This peak follows a summer of fluctuating sunny days, with July coming in at 51% and August dipping to 40%. The notable increase in sunny weather hints at a transition to a pleasant fall, with October dropping to 41% and November holding steady at 58%. Overall, September stands out as a sweet spot for sunshine, perfect for those looking to enjoy the great outdoors before the chill of winter sets in.

Percentage of Sunny Days in September in Massanutten

The chart illustrates the percentage of sunny days in Massanutten 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 Massanutten experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%32%52%50%42%39%51%40%58%41%58%43%
Data source: Massanutten September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Massanutten in September

As summer wanes in September, Massanutten, United States, experiences a notable shift in daylight, with the sun gracing the region for 12 hours each day. This decline marks a gradual transition from the peak summer hours of 14 hours enjoyed in July and June, as the days shorten heading into autumn. Following the vibrant summer months, September's daylight serves as a gentle reminder of the changing seasons, balancing warmth with the early signs of fall. As daylight gradually decreases into October, the soft embrace of autumn begins to take hold, inviting residents and visitors alike to relish the crisp air and the shifting hues of nature.

Average Daylight Hours in Massanutten for September

The chart illustrates the variation in daylight duration in Massanutten throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 49m10h 46m11h 58m13h 13m14h 16m14h 47m14h 30m13h 34m12h 22m11h 8m10h 3m9h 31m
Data source: Massanutten daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Massanutten

As summer fades into autumn, September in Massanutten brings a gentle change in the air, with average wind speeds dipping slightly to 2.0 m/s (5 mph). This marks a subtle resurgence from the summer lows experienced in July and August, where winds dwindled to their calmest at 1.9 m/s and 1.5 m/s, respectively. Contrasting with the higher speeds of early spring, where April and March both registered 2.7 m/s, September's breeze offers a refreshing yet tranquil transition towards the cooler months. As the leaves begin to blush with fall colors, the mild winds create an inviting atmosphere for outdoor activities, embodying the serene charm of early autumn in Massanutten.

Average September Wind Speed in Massanutten

The chart displays monthly wind speed patterns in Massanutten, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.62.72.72.32.11.91.52.0 m/s2.12.32.4
Data source: Massanutten September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Massanutten Compares to Other Months

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

September and January exhibit vastly different weather characteristics. September temperatures range from a chilly 3°C (37°F) at night to a warm peak of 34°C (93°F) during the day, with an average of 20°C (68°F) and about 95 mm (3.8 in) of precipitation over 9 days, contributing to a moderate humidity level of 68%. In contrast, January brings far colder conditions, with nighttime temperatures plummeting to -25°C (-13°F) and daytime highs reaching only 21°C (69°F), averaging around 1°C (34°F). Precipitation in January is less, at 57 mm (2.3 in) over 7 days, but the humidity rises to 86%, creating a distinctively frosty atmosphere. For more details on winter conditions, check out Massanutten weather in January.

September and February present a stark contrast in weather patterns. In September, temperatures range from a mild 3°C (37°F) at night to a warm 34°C (93°F) during the day, with an average of 20°C (68°F). The month sees about 95 mm (3.8 in) of precipitation over nine days, and the humidity sits at a comfortable 68%. In contrast, February experiences much colder conditions, with minimum temperatures dropping to -16°C (3°F) and a daily maximum of 25°C (77°F), averaging around 4°C (39°F). This month has slightly less precipitation, totaling 87 mm (3.4 in) over twelve days, but the humidity is higher at 86%. For more detailed information about the weather in February, you can check out Massanutten weather in February.

In September, temperatures are generally warmer, with averages around 20°C (68°F) and highs reaching up to 34°C (93°F), while the minimum temperature rarely drops below 3°C (37°F). Conversely, March experiences much cooler conditions, with average temperatures around 7°C (45°F) and lows plunging to -13°C (10°F). Additionally, September tends to be drier with about 95 mm (3.8 in) of precipitation over 9 days, compared to March, which has 66 mm (2.6 in) of precipitation spread over 10 days. The humidity is also higher in March at 86%, while September has a slightly lower humidity level of 68%. For a more detailed look at March weather conditions, check out Massanutten weather in March.

In comparing the weather of September and April, September generally offers warmer conditions, with average temperatures around 20°C (68°F) and maximums reaching up to 34°C (93°F). In contrast, April experiences cooler temperatures, with averages around 12°C (54°F) and minimums dipping to -4°C (25°F). Both months see a similar amount of precipitation, with September receiving 95 mm (3.8 in) over about 9 days, while April has slightly higher precipitation at 99 mm (3.9 in) over 11 days. Additionally, humidity levels are higher in April at 84%, compared to September's 68%. For more detailed information about April weather, you can check Massanutten weather in April.

In September, temperatures generally range from a minimum of 3°C (37°F) to a maximum of 34°C (93°F), with an average temperature of 20°C (68°F). The month experiences about 95 mm (3.8 in) of precipitation over 9 days, coupled with a humidity level of 68%. In contrast, May showcases slightly cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 32°C (89°F), averaging 17°C (64°F). This month sees a bit more precipitation at 105 mm (4.1 in) across 12 days, along with higher humidity at 78%. Overall, while September offers warmer afternoons, May tends to bring a brisk chill with slightly more frequent rain. For detailed insights, you can check Massanutten weather in May.

When comparing the weather in September and June, notable differences emerge in both temperature and humidity levels. September experiences a broader temperature range, with minimums dropping to 3°C (37°F) and maximums rising to 34°C (93°F), while the average temperature is slightly lower at 20°C (68°F). In contrast, June offers milder nights, with a minimum of 8°C (46°F) and an average temperature of 22°C (71°F), peaking at 33°C (92°F). Precipitation is fairly similar, with September receiving 95 mm (3.8 in) over 9 days and June slightly less at 88 mm (3.5 in) over 12 days. Humidity levels also vary, being higher in June at 79% compared to September's 68%. For a more detailed perspective on June weather, you can check Massanutten weather in June.

When comparing the weather between September and July, we notice some distinct differences. July tends to be warmer overall, with average temperatures reaching 25°C (77°F) and maximums peaking at 36°C (97°F). In contrast, September has a wider range, with a minimum temperature of 3°C (37°F) and a maximum of 34°C (93°F). Rainfall is slightly higher in September, with 95 mm (3.8 in) over 9 days, compared to July's 65 mm (2.6 in) under the same number of days. Humidity levels are also quite similar, hovering around 68% in September and 70% in July. For more specific details, you can explore Massanutten weather in July.

In comparing the weather of September and August, September presents a wider temperature range, with minimum temperatures dipping as low as 3°C (37°F) and maximums reaching 34°C (93°F), while August consistently stays warmer, with minimums around 12°C (53°F) and maximums peaking at 35°C (96°F). Both months experience similar precipitation levels, with September receiving 95 mm (3.8 in) over 9 days and August slightly higher at 97 mm (3.8 in) over 12 days. Additionally, September has higher humidity at 68%, compared to August's 59%, indicating a more muggy atmosphere as summer transitions into fall. For more detailed insights, check out Massanutten weather in August.

In September, the weather typically features a comfortable average temperature of 20°C (68°F), with a minimum of 3°C (37°F) and a maximum reaching 34°C (93°F). Humidity sits at 68%, and rainfall is moderate, with 95 mm (3.8 in) falling over 9 days. In contrast, October brings a noticeable drop in average temperatures to 15°C (59°F), with minimum temperatures dipping to -3°C (28°F) while still allowing for a maximum of 33°C (92°F). The month experiences slightly higher humidity at 80% and similar precipitation levels, totaling 100 mm (3.9 in) over just 8 days. For more details on weather conditions during this time, visit Massanutten weather in October.

September's weather offers warm temperatures with an average high of 34°C (93°F) and a pleasant low of 3°C (37°F), making it a month of transition between the warmth of summer and the cooler days to come. With a total precipitation of 95 mm (3.8 in) over about 9 days, the humidity remains relatively moderate at 68%. In contrast, November experiences much cooler temperatures, ranging from a low of -7°C (19°F) to a pleasant high of 23°C (74°F), with an average temperature of 6°C (44°F). Although it receives less rainfall at 74 mm (2.9 in) over 7 days, the humidity rises to 86%, contributing to a more subdued and crisp atmosphere. For more detailed insights, you can check Massanutten weather in November.

In September, the weather is generally warm and pleasant, with average temperatures around 20°C (68°F) and highs reaching up to 34°C (93°F). The month sees about 95 mm (3.8 in) of precipitation over approximately 9 days, with a humidity level of 68%. In contrast, December brings a notable chill, with average temperatures dropping to 3°C (39°F) and lows plummeting to -13°C (8°F). Although precipitation is slightly lower at 81 mm (3.2 in) over 8 days, the humidity increases to 85%, enhancing the cold feel of the month. For more detailed information, you can check out Massanutten weather in December.

Compare Massanutten's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Massanutten

As summer bids farewell, September in Massanutten ushers in a noticeable shift in weather patterns. The temperature begins to cool, with average highs providing a welcome reprieve from the summer heat, while nights can dip to brisk levels, inviting cozy sweater evenings. With about nine days of rain scattered throughout the month, humidity levels typically hold steady, creating a refreshing atmosphere. This transitional month stands out as a beautiful blend of warm days and cool nights, making it an ideal time to explore the scenic landscape before autumn fully sets in. For more insights into the weather patterns throughout the year, check out Massanutten Climate.