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September Weather in Burlington, United States

Last updated: June 24, 2025

The average temperature in Burlington, United States during September is a pleasant 22°C (73°F). Expect minimums as low as 5°C (41°F) and maximums reaching 34°C (94°F). With an average precipitation amount of 80 mm (3.2 in) spread over about 7 days, the chance of rain is notable. Plus, the average humidity sits at a comfortable 71%, making this month a unique blend of warmth and mild moisture.

September Temperature in Burlington

In September in Burlington, the average temperature is 22°C (73°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 5°C (41°F). This variation makes it essential to pack for both warm days and cooler nights while enjoying your travel.

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. In Burlington, September typically has an average temperature of 22°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec333448556677807772584539
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 Burlington in September, the total precipitation amount is 80 mm (3.2 in) over the course of 7 days.

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. In Burlington, September typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec53388796199112101123801263531
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Burlington

In Burlington in September humidity is 71%. With an average temperature of 22°C (73°F), this humidity feels like a thick, warm blanket wrapping around you, making travel feel a bit sluggish but still pleasant as long as you stay hydrated and take breaks in the shade.

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, helping you understand how conditions vary by season. In September, average humidity in Burlington is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Burlington

In Burlington in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Burlington.

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. In September, the maximum UV index in Burlington typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109743
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.

How September Weather in Burlington Compares to Other Months

Weather in Burlington varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Burlington, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Burlington, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)53 mm (2.1 inches)76%moderate
February Weather1°C (34°F)38 mm (1.5 inches)77%high
March Weather9°C (48°F)87 mm (3.4 inches)70%high
April Weather13°C (55°F)96 mm (3.8 inches)73%very high
May Weather19°C (66°F)199 mm (7.8 inches)82%very high
June Weather25°C (78°F)112 mm (4.4 inches)82%extreme
July Weather27°C (80°F)101 mm (4.0 inches)81%extreme
August Weather25°C (77°F)123 mm (4.8 inches)78%very high
September Weather22°C (73°F)80 mm (3.2 inches)71%very high
October Weather14°C (58°F)126 mm (5.0 inches)71%high
November Weather7°C (45°F)35 mm (1.4 inches)81%moderate
December Weather4°C (39°F)31 mm (1.2 inches)84%moderate

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