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September Weather in Dakota, United States

Last updated: June 24, 2025

In Dakota, United States, the average temperature in September hovers around 17°C (63°F), with temperatures ranging from a chilly 1°C (33°F) to a warm 33°C (91°F). Expect 90 mm (3.6 in) of precipitation over about 10 days, creating a humid environment with an average humidity of 79%. Whether you're planning outdoor activities or exploring indoor options, be prepared for varied weather conditions!

September Temperature in Dakota

In September in Dakota, the average temperature is 17°C (63°F). The maximum can reach 33°C (91°F), while the minimum can dip as low as 1°C (33°F). This climate makes Dakota a great destination for travelers seeking mild weather, with opportunities for both warm and cool experiences.

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

The chart illustrates September temperature patterns in Dakota, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dakota, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec202034445869737063503527
Data source: Temperature data for Dakota 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 Dakota

In Dakota in September, the precipitation amount is 90 mm (3.6 in) spread over the course of 10 days.

September Precipitation Trends in Dakota

The chart displays monthly precipitation patterns in Dakota, 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 Dakota, September typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec445263100111111123116901024750
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dakota

In Dakota in September, humidity is 79%. With an average temperature of 17°C (63°F), this humidity feels like a warm, muggy embrace, making outdoor activities less comfortable and prompting travelers to seek shaded areas or cool refreshments more frequently.

September Average Humidity in Dakota

This chart illustrates the average monthly humidity levels in Dakota, 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 Dakota is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dakota

In Dakota 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 Dakota.

Maximum UV Index Levels in Dakota for September

The chart shows the monthly maximum UV Index (UVI) for Dakota 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 Dakota typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
Data source: Dakota 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 Dakota Compares to Other Months

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

This table compares monthly weather conditions in Dakota, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)43 mm (1.7 inches)85%moderate
February Weather-6°C (21°F)52 mm (2.0 inches)85%moderate
March Weather1°C (34°F)63 mm (2.5 inches)85%moderate
April Weather7°C (44°F)100 mm (3.9 inches)85%very high
May Weather14°C (58°F)111 mm (4.4 inches)78%very high
June Weather21°C (69°F)111 mm (4.4 inches)80%very high
July Weather23°C (74°F)123 mm (4.8 inches)78%very high
August Weather21°C (70°F)116 mm (4.6 inches)76%very high
September Weather17°C (63°F)90 mm (3.6 inches)79%high
October Weather10°C (50°F)102 mm (4.0 inches)83%moderate
November Weather2°C (35°F)47 mm (1.9 inches)88%moderate
December Weather-3°C (27°F)49 mm (1.9 inches)81%low

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