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September Weather in Mahomet, United States

Last updated: June 24, 2025

In September, the average temperature in Mahomet, United States hovers around 21°C (70°F). Expect a range of temperatures, with lows of 5°C (42°F) and peaks reaching 35°C (94°F). During this time, you'll also encounter approximately 73 mm (2.9 in) of precipitation spread over 7 days, accompanied by an average humidity level of 80%. Prepare for a humid and varied climate!

September Temperature in Mahomet

In September in Mahomet, the average temperature is 21°C (70°F). Maximums can reach 35°C (94°F), and minimums can be as low as 5°C (42°F). This variation makes it essential to pack layers for your travels to Mahomet during this month to ensure you're comfortable in both warm and cooler weather.

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

The chart illustrates September temperature patterns in Mahomet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mahomet, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (94°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec283042526474777470574135
Data source: Temperature data for Mahomet 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 Mahomet

In Mahomet in September, the precipitation amount is 73 mm (2.9 in) during a span of 7 days.

September Precipitation Trends in Mahomet

The chart displays monthly precipitation patterns in Mahomet, 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 Mahomet, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec737411712014610886100731217054
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mahomet

In Mahomet in September humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

September Average Humidity in Mahomet

This chart illustrates the average monthly humidity levels in Mahomet, 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 Mahomet is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mahomet

In Mahomet 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 Mahomet.

Maximum UV Index Levels in Mahomet for September

The chart shows the monthly maximum UV Index (UVI) for Mahomet 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 Mahomet typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Mahomet 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 Mahomet Compares to Other Months

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

This table compares monthly weather conditions in Mahomet, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)73 mm (2.9 inches)82%moderate
February Weather-1°C (31°F)74 mm (2.9 inches)83%moderate
March Weather6°C (42°F)117 mm (4.6 inches)84%high
April Weather11°C (52°F)120 mm (4.7 inches)85%very high
May Weather18°C (65°F)146 mm (5.8 inches)79%very high
June Weather23°C (74°F)108 mm (4.2 inches)82%extreme
July Weather25°C (77°F)86 mm (3.4 inches)80%very high
August Weather23°C (74°F)100 mm (4.0 inches)81%very high
September Weather21°C (70°F)73 mm (2.9 inches)80%very high
October Weather14°C (57°F)121 mm (4.8 inches)82%high
November Weather5°C (41°F)70 mm (2.8 inches)88%moderate
December Weather2°C (35°F)54 mm (2.1 inches)84%low

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