September Weather in Burlington, United States

Last updated: February 24, 2025

In Burlington during September, the weather presents a compelling blend of warmth and coolness. With a maximum temperature soaring to 33°C (91°F), the month offers warm days, while the average temperature settles comfortably around 17°C (63°F), providing a refreshing respite during cooler evenings. However, the minimum temperature can dip down to a brisk 2°C (36°F), hinting at the impending fall. September witnesses 65 mm (2.6 in) of precipitation spread over nine days, contributing to a humidity level of 78% that envelops the region in a slightly muggy atmosphere. This dynamic weather pattern showcases Burlington's transition into autumn, attracting both locals and visitors alike to experience its distinct seasonal charm.

September Temperature in Burlington

In Burlington, September heralds the gentle transition from the heat of summer to the crispness of fall. With minimum temperatures around 2°C (36°F) and an average of 17°C (63°F), residents experience a refreshing reprieve from the peak summer warmth, which can still reach a comfortable 33°C (91°F) on warmer days. This month marks a notable shift as the temperatures begin to cool, creating the perfect backdrop for autumn activities and the stunning fall foliage that the region is known for. As September progresses, the lingering warmth gives way to the first hints of the chill that October will bring, encapsulating the beauty of this transitional season.

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

The chart illustrates September temperature patterns in Burlington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec212431445766727063513728
Data source: Temperature data for Burlington 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 Burlington

In September, Burlington experiences a noticeable dip in precipitation, receiving 65 mm (2.6 in) of rain across just 9 days. This marks a decline from the heavier summer months, such as July and August, where rainfall levels averaged around 90 mm (3.5 in) and 82 mm (3.2 in) respectively. As autumn approaches, this decrease in both total rainfall and rainy days reflects a transition towards drier weather, hinting at the crispness of fall that lays ahead. Late summer storms gradually give way to the more moderate and often sunnier conditions typical of October—when precipitation surges back up to an average of 142 mm (5.6 in). This pattern illustrates the ebb and flow of Burlington's climate as it shifts from summer's humidity to fall's refreshing coolness.

September Precipitation Trends in Burlington

The chart displays monthly precipitation patterns in Burlington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec767470101819096826514210473
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Burlington

As summer fades and autumn begins to take hold, September in Burlington, United States, sees a slight rise in humidity, averaging 78%. This marks a subtle shift from the drier months of summer, with August's humidity at 75%. Following the trend of steadily increasing moisture levels, September serves as a precursor to the wetter months ahead, where humidity spikes again in October at 86% and continues to rise into winter. The transition from 74% in June to 78% in September highlights the gradual return of atmospheric moisture, creating a refreshing but slightly heavier air that hints at the cozy, cooler days to come.

September Average Humidity in Burlington

This chart illustrates the average monthly humidity levels in Burlington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Burlington

As September rolls in, Burlington experiences a notable shift in its UV Index, settling at a moderate level of 7. This elevated UV exposure, categorized as high, means that sunburn can occur in just 25 minutes for those unprotected. Compared to the intense summer months of June to August, where the UV Index consistently peaked at 9 and 10, September offers a slight reprieve, yet still necessitates caution. As the seasons change, it's essential for residents and visitors alike to stay informed and protect their skin from harmful rays. To explore more about the yearly UV trends, check out Burlington UV Index.

Maximum UV Index Levels in Burlington for September

The chart shows the monthly maximum UV Index (UVI) for Burlington 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.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Burlington 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 Burlington

As summer transitions into autumn, September in Burlington brings a delightful 284 hours of sunshine, showcasing a perfect blend of warmth and crispness. This month holds onto the vibrant afterglow of July and August, which boasted the highest sunshine hours at 334 and 329, respectively. The gradual decline from these summer peaks signals a shift, but September still offers significantly more daylight compared to the colder months, with October dipping to 191 hours. This pattern highlights the enduring charm of early fall, where sunny days linger just enough for residents to relish outdoor activities before the chill of winter sets in. Enthusiasts can truly savor this golden hour before the sun’s retreat, embracing both the warmth of the season and the promise of autumnal beauty.

Monthly Sunshine Duration in Burlington: September Highlighted

The September sunshine duration represents the total number of hours Burlington 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.
JanFebMarAprMayJunJulAugSepOctNovDec106h147h222h215h269h319h334h329h284h191h137h129h
Data source: Burlington September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Burlington During September

In Burlington, September typically enjoys a 39% chance of sunny weather, making it one of the more favorable months for enjoying the outdoors. As summer transitions into fall, this likelihood aligns closely with the slightly sunnier days of August, which boasts a 40% chance. Such consistency suggests that while sunny days may not be guaranteed, September still offers a pleasant opportunity for sunshine compared to the cooler months that follow. Interestingly, the trend shows a decline in sunny chances as autumn deepens, with October dropping to 30% and November rising again to a more promising 44%. Thus, September presents a sweet spot, perfect for those looking to soak in the last rays of summer before the days grow shorter.

Percentage of Sunny Days in September in Burlington

The chart illustrates the percentage of sunny days in Burlington 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 Burlington experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%28%46%37%39%38%31%40%39%30%44%24%
Data source: Burlington September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Burlington in September

As summer fades into autumn, September in Burlington ushers in a shift in daylight duration, offering about 12 hours of sunlight—a gentle decline from the peak of 15 hours experienced in June and July. This gradual reduction hints at the changing seasons, balancing between the lingering warmth of summer and the impending chill of October. Interestingly, September showcases a significant transition, reflecting nature's rhythm as the days progressively shorten. As the leaves begin to turn, the dwindling light sets the stage for cozy evenings and the vibrant hues of fall foliage, drawing residents outdoors to savor the last golden days of the year.

Average Daylight Hours in Burlington for September

The chart illustrates the variation in daylight duration in Burlington throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 15m10h 26m11h 57m13h 30m14h 49m15h 28m15h 7m13h 56m12h 27m10h 55m9h 34m8h 52m
Data source: Burlington daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Burlington

As September arrives in Burlington, the air begins to shift, showcasing a subtle increase in wind speed to 3.0 m/s (7 mph) - a refreshing change that heralds the onset of autumn. This uptick follows a summer marked by comparatively calmer breezes, with average speeds dipping to around 2.3-2.4 m/s (5 mph) in July and August. The transition into fall brings back a livelier atmosphere, reminiscent of the more robust winds typically seen in early spring. Notably, September's winds sit comfortably between the gentle currents of the summer months and the brisk breezes that accompany late fall, making it an ideal time for outdoor activities among the changing leaves. The anticipation of autumn's chill is carried on the September winds, setting the stage for a seasonal transformation in Burlington.

Average September Wind Speed in Burlington

The chart displays monthly wind speed patterns in Burlington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.72.73.82.72.52.92.32.43.0 m/s2.42.93.3
Data source: Burlington September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Burlington Compares to Other Months

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

In September, the weather is notably warmer, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 33°C (91°F), averaging around 17°C (63°F). The month experiences 65 mm (2.6 in) of precipitation over 9 days, with a humidity level of 78%. In contrast, January presents a stark chill, where temperatures can plummet to a minimum of -28°C (-18°F) and peak at just 13°C (56°F), averaging -6°C (22°F). The winter month sees a bit more precipitation, totaling 76 mm (3.0 in) over 12 days, and the humidity level rises to 93%. For more details on January weather, you can check this link: Burlington weather in January.

September and February showcase a remarkable contrast in weather. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 33°C (91°F), with an average of 17°C (63°F), and the month experiences about 65 mm (2.6 inches) of precipitation over 9 days, accompanied by a humidity of 78%. In stark contrast, February is much colder, as temperatures plummet to a minimum of -24°C (-11°F) and peak at 17°C (63°F), with an average of -5°C (24°F). This winter month sees slightly higher precipitation at 74 mm (2.9 inches) across 13 days and higher humidity levels at 92%. For more details, you can explore Burlington weather in February.

In comparing the weather between September and March, one can observe notable contrasts. September typically features a comfortable temperature range, with minimums around 2°C (36°F) and maximums reaching up to 33°C (91°F), while averaging 17°C (63°F). In contrast, March experiences much cooler temperatures, with lows plummeting to -19°C (-2°F) and a maximum of 22°C (72°F), averaging just -1°C (31°F). Both months see similar levels of precipitation, with September recording 65 mm (2.6 in) over 9 days and March slightly higher at 69 mm (2.7 in) over 11 days. Additionally, humidity levels in March are markedly higher at 86%, compared to September's 78%. For more details on March weather, you can visit Burlington weather in March.

When comparing the weather in September and April, notable differences emerge in both temperature and precipitation patterns. September tends to be warmer, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 33°C (91°F). In contrast, April experiences cooler temperatures, with lows reaching as low as -7°C (20°F) and highs up to 25°C (78°F). Precipitation is more frequent in April, occurring over 13 days and totaling 101 mm (4.0 in), compared to September's 65 mm (2.6 in) over 9 days. Additionally, April's humidity is slightly higher at 85%, while September maintains a humidity level of 78%. For a detailed look at April weather, you can explore Burlington weather in April.

September typically offers a wider range of temperatures, with a minimum of 2°C (36°F) and a maximum reaching 33°C (91°F), while the average temperature is a comfortable 17°C (63°F). In contrast, May's temperatures range from a cooler minimum of 0°C (32°F) to a warm maximum of 35°C (96°F), with an average of 14°C (57°F). Although September has less precipitation overall at 65 mm (2.6 in) compared to May’s 81 mm (3.2 in), it experiences fewer rainy days, with rain on about 9 days in September versus 12 days in May. Both months have relatively high humidity, with September at 78% and May slightly higher at 80%. For a closer look at May's weather patterns, you can visit Burlington weather in May.

When comparing the weather in September and June, both months exhibit a noticeable range in temperatures. September has a minimum temperature of 2°C (36°F) and an average of 17°C (63°F), with a maximum reaching up to 33°C (91°F). In contrast, June features a slightly warmer temperature profile, with the same min of 2°C (36°F), an average of 19°C (66°F), and a maximum of 35°C (96°F). Precipitation levels in June are higher at 90 mm (3.5 in) over 11 days, compared to September, which sees 65 mm (2.6 in) across 9 days. Interestingly, September is a bit more humid with 78% humidity compared to June's 74%. For a more detailed look at June's weather, you can check Burlington weather in June.

When comparing the weather in September and July, a few notable differences arise. September experiences a wider temperature range, with minimums dipping to 2°C (36°F) and maximums reaching 33°C (91°F), while July’s temperatures are generally milder, with minimums around 10°C (50°F) and maximums peaking at 35°C (96°F). While September has an average temperature of 17°C (63°F), July boasts a warmer average of 22°C (72°F). In addition, September sees less precipitation overall, with 65 mm (2.6 in) over 9 days compared to July's 96 mm (3.8 in) across 12 days. Interestingly, both months have similar humidity levels, with September at 78% and July slightly lower at 76%. For more detailed information, you can visit Burlington weather in July.

September weather shows a noticeable shift from August, with lower minimum temperatures dropping from 9°C (49°F) to 2°C (36°F). Although the average maximum temperature remains similar, peaking at 33°C (92°F) in both months, September tends to feature cooler overall temperatures, averaging at 17°C (63°F) compared to August's 21°C (70°F). Additionally, September experiences slightly less precipitation, totaling 65 mm (2.6 in) over 9 days, while August sees 82 mm (3.2 in) across 12 days. Humidity levels are also marginally higher in September at 78%, versus August's 75%. For more detailed insights, check out Burlington weather in August.

September and October present a notable transition in weather patterns. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 33°C (91°F), with an average of 17°C (63°F). The month experiences about 65 mm (2.6 in) of precipitation over 9 days and a humidity level of 78%. As October arrives, temperatures drop further, with a minimum of -3°C (27°F) and a maximum of 26°C (79°F), averaging at 11°C (52°F). Precipitation significantly increases to 142 mm (5.6 in) over 13 days, and humidity rises to 86%. For a closer look at October weather patterns, check out Burlington weather in October.

September and November present strikingly different weather patterns. In September, temperatures range from a mild 2°C (36°F) at night to a comfortable 33°C (91°F) during the day, with an average of 17°C (63°F). This month sees about 65 mm (2.6 in) of precipitation over approximately 9 days, and the humidity is relatively moderate at 78%. In contrast, November brings much colder conditions, with temperatures dipping to a minimum of -15°C (6°F) and peaking at a max of 23°C (73°F), averaging just 3°C (37°F). The month is wetter, with precipitation climbing to 104 mm (4.1 in) across 14 days, and a higher humidity level of 88%. For a closer look at the weather specifics during this time, you can check out Burlington weather in November.

In September, temperatures range from a mild 2°C (36°F) at night to a warm 33°C (91°F) during the day, with an average of 17°C (63°F). The month experiences relatively moderate rainfall of 65 mm (2.6 in) over about 9 days and a humidity level of 78%. In contrast, December brings a stark shift as temperatures plummet, starting at a frigid minimum of -24°C (-11°F) and averaging around -2°C (28°F), with a maximum of 15°C (59°F). Precipitation increases slightly to 73 mm (2.9 in) over 13 days, coupled with higher humidity at 89%. This dramatic change highlights the transition from the warmth of early autumn to the harsh chill of winter. For more detailed information, you can check Burlington weather in December.

Compare Burlington's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Burlington

As September rolls in, Burlington experiences a delightful transition from the heat of summer to the cooler embrace of autumn. Days are warm, with temperatures often peaking around 33°C (91°F), but the nights bring a refreshing chill that can dip down to 2°C (36°F). This month is characterized by higher humidity levels, reaching up to 78%, making the air feel a bit heavier. While the city sees about 65 mm (2.6 in) of rainfall over 9 days, this moisture is vital for revitalizing the lush landscape, setting the stage for stunning fall foliage. For those seeking to understand more about this beautiful seasonal shift, you can explore further details at Burlington Climate.