nomadseason

September Weather in Richfield, United States

Last updated: June 24, 2025

In Richfield, United States, the average temperature in September hovers around 20°C (68°F). During this time, you might experience chilly lows of 3°C (39°F) and warm highs reaching 33°C (91°F). Keep an umbrella handy, as 129 mm (5.1 in) of precipitation typically falls over about 10 days. With an average humidity of 66%, don’t forget to stay hydrated!

September Temperature in Richfield

In September in Richfield, the average temperature is 20°C (68°F). Maximums can reach 33°C (91°F), while minimums can drop to as low as 3°C (39°F). It's a great time to visit for those who enjoy mild weather with the possibility of warm days and cool nights.

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

The chart illustrates September temperature patterns in Richfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richfield, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 3°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec313440516271767468574236
Data source: Temperature data for Richfield generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Richfield

In Richfield in September, the precipitation amount is 129 mm (5.1 in) over a span of 10 days.

September Precipitation Trends in Richfield

The chart displays monthly precipitation patterns in Richfield, 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 Richfield, September typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec689990108126941311081291219187
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Richfield

In Richfield in September, humidity is 66%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but potentially a bit sticky, so travelers should stay hydrated and consider light, breathable clothing for comfort.

September Average Humidity in Richfield

This chart illustrates the average monthly humidity levels in Richfield, 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 Richfield is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Richfield

In Richfield 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 Richfield.

Maximum UV Index Levels in Richfield for September

The chart shows the monthly maximum UV Index (UVI) for Richfield 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 Richfield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Richfield 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 Richfield Compares to Other Months

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

This table compares monthly weather conditions in Richfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)68 mm (2.7 inches)87%moderate
February Weather1°C (34°F)99 mm (3.9 inches)85%moderate
March Weather5°C (41°F)90 mm (3.5 inches)85%high
April Weather11°C (51°F)108 mm (4.2 inches)83%very high
May Weather17°C (62°F)126 mm (4.9 inches)75%very high
June Weather21°C (71°F)94 mm (3.7 inches)73%very high
July Weather25°C (76°F)131 mm (5.2 inches)65%very high
August Weather23°C (74°F)108 mm (4.2 inches)62%very high
September Weather20°C (68°F)129 mm (5.1 inches)66%very high
October Weather14°C (58°F)121 mm (4.8 inches)79%high
November Weather6°C (43°F)91 mm (3.6 inches)87%moderate
December Weather2°C (36°F)87 mm (3.4 inches)85%low

Compare Richfield's Climate with Cities Worldwide