September Weather in Lansing, United States

Last updated: August 27, 2025

In September, the average temperature in Lansing, United States hovers around 18°C (65°F), with a minimum of 3°C (39°F) and a maximum reaching 33°C (92°F). Expect about 124 mm (4.9 in) of precipitation over approximately 10 days, contributing to an average humidity level of 74%. Enjoy the variability of this month as you plan your activities!

September Temperature in Lansing

In September in Lansing, the average temperature is 18°C (65°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 3°C (39°F). It's advisable to pack both light clothing for the warm days and layers for the cooler nights during your travels.

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

The chart illustrates September temperature patterns in Lansing, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lansing, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (39°F).

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

September Precipitation in Lansing

In Lansing in September, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.

September Precipitation Trends in Lansing

The chart displays monthly precipitation patterns in Lansing, 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 Lansing, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 10 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 Lansing

In Lansing in September humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.

September Average Humidity in Lansing

This chart illustrates the average monthly humidity levels in Lansing, 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 Lansing is approximately 74%, 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 Lansing

In Lansing 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 Lansing.

Maximum UV Index Levels in Lansing for September

The chart shows the monthly maximum UV Index (UVI) for Lansing 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 Lansing typically reaches 8, which falls under the very high exposure category.

Data source: Lansing 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 Lansing Compares to Other Months

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

This table compares monthly weather conditions in Lansing, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	40 mm (1.6 inches)	84%	moderate
February Weather	-6°C (22°F)	53 mm (2.1 inches)	85%	moderate
March Weather	2°C (36°F)	60 mm (2.4 inches)	84%	moderate
April Weather	8°C (46°F)	82 mm (3.2 inches)	83%	very high
May Weather	15°C (60°F)	141 mm (5.5 inches)	75%	very high
June Weather	22°C (72°F)	129 mm (5.1 inches)	79%	very high
July Weather	24°C (75°F)	120 mm (4.7 inches)	75%	very high
August Weather	22°C (71°F)	98 mm (3.9 inches)	69%	very high
September Weather	18°C (65°F)	124 mm (4.9 inches)	74%	very high
October Weather	10°C (51°F)	127 mm (5.0 inches)	79%	moderate
November Weather	2°C (36°F)	51 mm (2.0 inches)	88%	moderate
December Weather	-2°C (29°F)	40 mm (1.6 inches)	82%	low