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September Weather in Vadnais Heights, United States

Last updated: June 24, 2025

In Vadnais Heights, United States, the average temperature in September hovers around 18°C (64°F), making it a comfortable time to visit. However, be prepared for a range, with minimums dipping to 2°C (36°F) and maximums soaring up to 33°C (91°F). Expect 114 mm (4.5 in) of precipitation over about 10 days during the month, and keep in mind the average humidity sits at a warm 81%.

September Temperature in Vadnais Heights

In September in Vadnais Heights, the average temperature is 18°C (64°F). Maximums can reach 33°C (91°F), and minimums can be as low as 2°C (36°F). This makes Vadnais Heights a great destination for travelers looking to experience a range of temperatures, from warm days to cooler nights.

September Weather in Vadnais Heights: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Vadnais Heights, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vadnais Heights, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec171733435971747164483323
Data source: Temperature data for Vadnais Heights 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 Vadnais Heights

In Vadnais Heights in September, the precipitation amount is 114 mm (4.5 in) over a period of 10 days.

September Precipitation Trends in Vadnais Heights

The chart displays monthly precipitation patterns in Vadnais Heights, 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 Vadnais Heights, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec28365688134911051251141013753
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vadnais Heights

In Vadnais Heights in September, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

September Average Humidity in Vadnais Heights

This chart illustrates the average monthly humidity levels in Vadnais Heights, 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 Vadnais Heights is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vadnais Heights

In Vadnais Heights in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Vadnais Heights.

Maximum UV Index Levels in Vadnais Heights for September

The chart shows the monthly maximum UV Index (UVI) for Vadnais Heights 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 Vadnais Heights typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810997532
Data source: Vadnais Heights 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 Vadnais Heights Compares to Other Months

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

This table compares monthly weather conditions in Vadnais Heights, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)28 mm (1.1 inches)87%low
February Weather-8°C (17°F)35 mm (1.4 inches)90%moderate
March Weather0°C (33°F)56 mm (2.2 inches)85%moderate
April Weather6°C (43°F)88 mm (3.5 inches)84%high
May Weather15°C (59°F)134 mm (5.3 inches)78%very high
June Weather22°C (71°F)91 mm (3.6 inches)80%very high
July Weather24°C (75°F)104 mm (4.1 inches)81%very high
August Weather22°C (71°F)125 mm (4.9 inches)81%very high
September Weather18°C (64°F)114 mm (4.5 inches)81%high
October Weather9°C (49°F)101 mm (4.0 inches)84%moderate
November Weather1°C (34°F)37 mm (1.4 inches)88%moderate
December Weather-5°C (23°F)53 mm (2.1 inches)84%low

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