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September Weather in Stonewood, United States

Last updated: June 24, 2025

In September, the average temperature in Stonewood, United States hovers around 20°C (68°F). Expect a range from a chilly 4°C (40°F) at night to a warm 33°C (92°F) during the day. While exploring, be prepared for 114 mm (4.5 in) of precipitation over approximately 9 days, and experience an average humidity of 73%. Plan accordingly to make the most of your visit!

September Temperature in Stonewood

In September, in Stonewood, the average temperature is 20°C (68°F). Maximums can reach 33°C (92°F), and minimums can be as low as 4°C (40°F). It's advisable to pack layers to accommodate both warm days and cooler nights while enjoying your travels.

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

The chart illustrates September temperature patterns in Stonewood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stonewood, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec343945546470757368594439
Data source: Temperature data for Stonewood 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 Stonewood

In Stonewood in September, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.

September Precipitation Trends in Stonewood

The chart displays monthly precipitation patterns in Stonewood, 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 Stonewood, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec9714811714715915512912411411485127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Stonewood

In Stonewood in September, humidity is 73%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities somewhat sticky, yet the atmosphere remains pleasant for leisurely strolls and sightseeing.

September Average Humidity in Stonewood

This chart illustrates the average monthly humidity levels in Stonewood, 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 Stonewood is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Stonewood

In Stonewood 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 Stonewood.

Maximum UV Index Levels in Stonewood for September

The chart shows the monthly maximum UV Index (UVI) for Stonewood 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 Stonewood typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Stonewood 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 Stonewood Compares to Other Months

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

This table compares monthly weather conditions in Stonewood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)97 mm (3.8 inches)88%moderate
February Weather4°C (39°F)148 mm (5.8 inches)88%moderate
March Weather7°C (45°F)117 mm (4.6 inches)88%high
April Weather12°C (54°F)147 mm (5.8 inches)86%very high
May Weather18°C (64°F)159 mm (6.3 inches)82%very high
June Weather21°C (70°F)155 mm (6.1 inches)84%very high
July Weather24°C (75°F)129 mm (5.1 inches)82%very high
August Weather23°C (73°F)124 mm (4.9 inches)73%very high
September Weather20°C (68°F)114 mm (4.5 inches)73%very high
October Weather15°C (59°F)114 mm (4.5 inches)81%high
November Weather7°C (44°F)85 mm (3.3 inches)89%moderate
December Weather4°C (39°F)127 mm (5.0 inches)86%moderate

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