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September Weather in Treasure Lake, United States

Last updated: June 24, 2025

In September, the average temperature in Treasure Lake, United States is a pleasant 17°C (64°F). You'll experience a minimum low of 2°C (35°F), with highs reaching up to 31°C (88°F). Be prepared for some rain, as the area sees about 119 mm (4.7 in) of precipitation over approximately 11 days. Additionally, the average humidity hovers around a comfortable 67%.

September Temperature in Treasure Lake

In September, in Treasure Lake, the average temperature is 17°C (64°F). The maximum can reach 31°C (88°F), while the minimum can be as low as 2°C (35°F). Travelers should be prepared for a wide range of temperatures and dress in layers to enjoy all that Treasure Lake has to offer.

September Weather in Treasure Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Treasure Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Treasure Lake, September typically has an average temperature of 17°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec273037475866717063533832
Data source: Temperature data for Treasure Lake 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 Treasure Lake

In Treasure Lake in September, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

September Precipitation Trends in Treasure Lake

The chart displays monthly precipitation patterns in Treasure Lake, 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 Treasure Lake, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9511710213315313211910411912499105
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Treasure Lake

In Treasure Lake in September humidity is 67%. With an average temperature of 17°C (64°F), this humidity feels like a cozy embrace, perfect for leisurely strolls, but it may leave you slightly sticky if you're active, so staying hydrated is essential for a comfortable experience.

September Average Humidity in Treasure Lake

This chart illustrates the average monthly humidity levels in Treasure Lake, 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 Treasure Lake is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Treasure Lake

In Treasure Lake 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 Treasure Lake.

Maximum UV Index Levels in Treasure Lake for September

The chart shows the monthly maximum UV Index (UVI) for Treasure Lake 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 Treasure Lake typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101010108642
Data source: Treasure Lake 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 Treasure Lake Compares to Other Months

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

This table compares monthly weather conditions in Treasure Lake, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)95 mm (3.8 inches)89%moderate
February Weather-1°C (30°F)117 mm (4.6 inches)90%moderate
March Weather3°C (37°F)102 mm (4.0 inches)89%high
April Weather8°C (47°F)133 mm (5.2 inches)88%very high
May Weather15°C (59°F)153 mm (6.0 inches)80%very high
June Weather19°C (67°F)132 mm (5.2 inches)79%very high
July Weather22°C (72°F)119 mm (4.7 inches)74%very high
August Weather21°C (70°F)104 mm (4.1 inches)64%very high
September Weather17°C (64°F)119 mm (4.7 inches)67%very high
October Weather12°C (54°F)124 mm (4.9 inches)81%high
November Weather4°C (39°F)99 mm (3.9 inches)89%moderate
December Weather0°C (33°F)105 mm (4.1 inches)88%low

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