September Weather in La Harpe, United States

Last updated: June 24, 2025

In September, the average temperature in La Harpe, United States hovers around 23°C (73°F), with a delightful range from a minimum of 5°C (41°F) to a warm maximum of 34°C (94°F). This month also sees an average precipitation of 79 mm (3.1 in) spread across 7 days, while the average humidity rests at a comfortable 67%.

September Temperature in La Harpe

In September in La Harpe, the average temperature is 23°C (73°F). Maximums can reach 34°C (94°F), while minimums can drop as low as 5°C (41°F). It's advisable to pack layers for your trip to enjoy both warm days and 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 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for La Harpe generated using information from the Copernicus Climate Change Service.

September Precipitation in La Harpe

In La Harpe in September, the total precipitation amount is 79 mm (3.1 in) distributed over a period of 7 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 79 mm (3.1 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in La Harpe

In La Harpe in September humidity is 67%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket that makes the air feel thick and slightly sticky, which can be challenging for travelers who prefer cooler, drier conditions.

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 67%, offering insight into how humid the weather typically is during this month.

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 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 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 9, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (34°F)	58 mm (2.3 inches)	77%	moderate
February Weather	2°C (35°F)	47 mm (1.9 inches)	76%	moderate
March Weather	9°C (49°F)	99 mm (3.9 inches)	71%	high
April Weather	13°C (56°F)	108 mm (4.3 inches)	73%	very high
May Weather	19°C (67°F)	196 mm (7.7 inches)	83%	very high
June Weather	25°C (78°F)	102 mm (4.0 inches)	83%	extreme
July Weather	27°C (81°F)	109 mm (4.3 inches)	81%	extreme
August Weather	25°C (78°F)	140 mm (5.5 inches)	73%	very high
September Weather	23°C (73°F)	79 mm (3.1 inches)	67%	very high
October Weather	15°C (59°F)	127 mm (5.0 inches)	72%	high
November Weather	8°C (46°F)	39 mm (1.5 inches)	82%	moderate
December Weather	4°C (40°F)	33 mm (1.3 inches)	85%	moderate