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September Weather in Clarkfield, United States

Last updated: June 24, 2025

In September, the average temperature in Clarkfield, United States hovers around 18°C (64°F), making it a pleasant time to explore the area. However, be prepared for temperature fluctuations, with lows dipping to 1°C (34°F) and highs reaching up to 33°C (92°F). Expect 107 mm (4.2 in) of precipitation spread over 9 days, so don’t forget your umbrella! With an average humidity of 82%, the air can feel quite moist, perfect for those who enjoy a warm, tropical atmosphere.

September Temperature in Clarkfield

In September in Clarkfield, the average temperature is 18°C (64°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 1°C (34°F). Be prepared for a range of temperatures, making it an ideal time for exploring the great outdoors.

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

The chart illustrates September temperature patterns in Clarkfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarkfield, September typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec161632435972747064483424
Data source: Temperature data for Clarkfield 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 Clarkfield

In Clarkfield in September, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.

September Precipitation Trends in Clarkfield

The chart displays monthly precipitation patterns in Clarkfield, 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 Clarkfield, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2222577511087107124107912840
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Clarkfield

In Clarkfield in September humidity is 82%. With an average temperature of 18°C (64°F), this humidity feels like a warm, muggy embrace that can make exploring the area feel stifling, leaving travelers drenched in sweat and longing for respite in the shade.

September Average Humidity in Clarkfield

This chart illustrates the average monthly humidity levels in Clarkfield, 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 Clarkfield is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Clarkfield

In Clarkfield 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 Clarkfield.

Maximum UV Index Levels in Clarkfield for September

The chart shows the monthly maximum UV Index (UVI) for Clarkfield 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 Clarkfield typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3557910997532
Data source: Clarkfield 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 Clarkfield Compares to Other Months

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

This table compares monthly weather conditions in Clarkfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)22 mm (0.9 inches)85%moderate
February Weather-9°C (16°F)22 mm (0.9 inches)89%moderate
March Weather0°C (33°F)57 mm (2.2 inches)81%moderate
April Weather6°C (43°F)75 mm (2.9 inches)82%high
May Weather15°C (59°F)110 mm (4.3 inches)76%very high
June Weather22°C (72°F)87 mm (3.4 inches)81%very high
July Weather23°C (74°F)107 mm (4.2 inches)82%very high
August Weather21°C (71°F)124 mm (4.9 inches)83%very high
September Weather18°C (64°F)107 mm (4.2 inches)82%high
October Weather9°C (48°F)91 mm (3.6 inches)82%moderate
November Weather1°C (34°F)28 mm (1.1 inches)87%moderate
December Weather-4°C (24°F)40 mm (1.6 inches)84%low

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