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September Weather in Clay Center, United States

Last updated: June 24, 2025

In September, the average temperature in Clay Center, United States hovers around 22°C (72°F). Expect a temperature range from a cool 5°C (41°F) to a warm 37°C (99°F). During this period, precipitation amounts to approximately 68 mm (2.7 in) over 7 days, accompanied by an average humidity level of 71%.

September Temperature in Clay Center

In September in Clay Center, the average temperature is 22°C (72°F). Maximums can reach 37°C (99°F), and minimums can be as low as 5°C (41°F). This range offers travelers the opportunity to enjoy both warm days and cooler evenings, making it a versatile time to explore.

September Weather in Clay Center: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Clay Center, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clay Center, September typically has an average temperature of 22°C (72°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec303145546578817772554336
Data source: Temperature data for Clay Center 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 Clay Center

In Clay Center in September, the precipitation amount is 68 mm (2.7 in) over the course of 7 days.

September Precipitation Trends in Clay Center

The chart displays monthly precipitation patterns in Clay Center, 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 Clay Center, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec292789712057786106691193126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Clay Center

In Clay Center in September humidity is 71%. With an average temperature of 22°C (72°F), this humidity feels like the air is thick and slightly stifling, making outdoor activities require frequent breaks to stay hydrated and cool.

September Average Humidity in Clay Center

This chart illustrates the average monthly humidity levels in Clay Center, 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 Clay Center 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 Clay Center

In Clay Center 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 Clay Center.

Maximum UV Index Levels in Clay Center for September

The chart shows the monthly maximum UV Index (UVI) for Clay Center 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 Clay Center typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Clay Center 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 Clay Center Compares to Other Months

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

This table compares monthly weather conditions in Clay Center, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)29 mm (1.1 inches)76%moderate
February Weather-1°C (31°F)27 mm (1.1 inches)77%moderate
March Weather7°C (45°F)89 mm (3.5 inches)70%high
April Weather12°C (54°F)71 mm (2.8 inches)73%very high
May Weather18°C (65°F)205 mm (8.1 inches)82%very high
June Weather25°C (78°F)77 mm (3.0 inches)82%extreme
July Weather27°C (81°F)86 mm (3.4 inches)81%extreme
August Weather25°C (77°F)106 mm (4.2 inches)78%very high
September Weather22°C (72°F)68 mm (2.7 inches)71%very high
October Weather13°C (56°F)119 mm (4.7 inches)71%high
November Weather6°C (43°F)31 mm (1.2 inches)81%moderate
December Weather2°C (36°F)26 mm (1.0 inches)84%moderate

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