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September Weather in Lawrence, United States

Last updated: June 24, 2025

In September, the average temperature in Lawrence, United States hovers around 21°C (70°F). Expect a minimum of 6°C (42°F) and a maximum of 33°C (92°F), so be prepared for a range of weather. During this month, you'll also encounter about 84 mm (3.3 in) of precipitation over 7 days, coupled with an average humidity of 69%.

September Temperature in Lawrence

In September in Lawrence, the average temperature is 21°C (70°F). The maximum can reach 33°C (92°F), while the minimum can be as low as 6°C (42°F). This wide temperature range makes it essential for travelers to pack layers to accommodate both warm days and cool nights.

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

The chart illustrates September temperature patterns in Lawrence, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lawrence, September typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec303443526473777470584236
Data source: Temperature data for Lawrence 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 Lawrence

In Lawrence in September, the total precipitation amount is 84 mm (3.3 in) distributed over a span of 7 days.

September Precipitation Trends in Lawrence

The chart displays monthly precipitation patterns in Lawrence, 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 Lawrence, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec83961309713210410996841019682
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lawrence

In Lawrence in September humidity is 69%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but requiring occasional breaks for hydration and shade during your travels.

September Average Humidity in Lawrence

This chart illustrates the average monthly humidity levels in Lawrence, 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 Lawrence is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lawrence

In Lawrence 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 Lawrence.

Maximum UV Index Levels in Lawrence for September

The chart shows the monthly maximum UV Index (UVI) for Lawrence 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 Lawrence typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
Data source: Lawrence 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 Lawrence Compares to Other Months

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

This table compares monthly weather conditions in Lawrence, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)83 mm (3.3 inches)87%moderate
February Weather1°C (34°F)96 mm (3.8 inches)85%moderate
March Weather6°C (43°F)130 mm (5.1 inches)86%high
April Weather11°C (53°F)97 mm (3.8 inches)84%very high
May Weather18°C (65°F)132 mm (5.2 inches)79%very high
June Weather23°C (74°F)104 mm (4.1 inches)82%extreme
July Weather25°C (77°F)109 mm (4.3 inches)79%very high
August Weather23°C (74°F)96 mm (3.8 inches)70%very high
September Weather21°C (70°F)84 mm (3.3 inches)69%very high
October Weather14°C (58°F)101 mm (4.0 inches)76%high
November Weather5°C (42°F)96 mm (3.8 inches)88%moderate
December Weather2°C (36°F)82 mm (3.2 inches)87%moderate

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