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September Weather in La Harpe, United States

Last updated: June 24, 2025

In La Harpe, United States, the average temperature in September is a pleasant 21°C (70°F), with typical fluctuations ranging from a cool 6°C (43°F) to a warm 35°C (95°F). Expect about 95 mm (3.8 in) of precipitation over 8 days, contributing to an average humidity of 78%. Enjoy the variety that this month brings!

September Temperature in La Harpe

In September in La Harpe, the average temperature is 21°C (70°F). Maximums can reach 35°C (95°F) and minimums can be as low as 6°C (43°F). This range makes it an ideal time for travelers seeking a variety of outdoor experiences, from warm afternoons to cooler evenings.

September Weather in La Harpe: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Harpe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Harpe, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec272942516475787570564134
Data source: Temperature data for La Harpe 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 La Harpe

In La Harpe in September, the precipitation amount is 95 mm (3.8 in) accumulated over 8 days.

September Precipitation Trends in La Harpe

The chart displays monthly precipitation patterns in La Harpe, 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 La Harpe, September typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec57611061001681248787951105245
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Harpe

In La Harpe in September, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.

September Average Humidity in La Harpe

This chart illustrates the average monthly humidity levels in La Harpe, 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 La Harpe is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%81%82%78%81%79%77%78%79%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Harpe

In La Harpe in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in La Harpe.

Maximum UV Index Levels in La Harpe for September

The chart shows the monthly maximum UV Index (UVI) for La Harpe 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 La Harpe typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098642
Data source: La Harpe 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 La Harpe Compares to Other Months

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

This table compares monthly weather conditions in La Harpe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)57 mm (2.3 inches)81%moderate
February Weather-1°C (30°F)61 mm (2.4 inches)81%moderate
March Weather6°C (43°F)106 mm (4.2 inches)81%high
April Weather11°C (52°F)100 mm (3.9 inches)82%very high
May Weather18°C (65°F)168 mm (6.6 inches)78%very high
June Weather24°C (75°F)124 mm (4.9 inches)81%extreme
July Weather26°C (78°F)87 mm (3.4 inches)79%very high
August Weather24°C (75°F)87 mm (3.4 inches)77%very high
September Weather21°C (70°F)95 mm (3.8 inches)78%very high
October Weather13°C (56°F)110 mm (4.3 inches)78%high
November Weather5°C (41°F)52 mm (2.0 inches)87%moderate
December Weather1°C (35°F)44 mm (1.8 inches)84%low

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