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September Weather in Sublette, United States

Last updated: June 24, 2025

In September, the average temperature in Sublette, United States hovers around 22°C (72°F). Expect a minimum dip to 3°C (38°F) and potentially soaring to a maximum of 39°C (103°F). With 39 mm (1.5 in) of precipitation over 6 days, stay prepared for some rain. The air tends to be quite humid, with an average humidity level of 79%.

September Temperature in Sublette

In September in Sublette, the average temperature is 22°C (72°F). Maximums can reach 39°C (103°F), while minimums can be as low as 3°C (38°F). Be prepared for a wide range of temperatures when traveling to Sublette this month.

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

The chart illustrates September temperature patterns in Sublette, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sublette, September typically has an average temperature of 22°C (72°F), with highs reaching up to 39°C (103°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec343447546476797772564537
Data source: Temperature data for Sublette 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 Sublette

In Sublette in September, the precipitation amount is 39 mm (1.5 in), occurring over the course of 6 days.

September Precipitation Trends in Sublette

The chart displays monthly precipitation patterns in Sublette, 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 Sublette, September typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec1714564212155406639511122
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sublette

In Sublette in September humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.

September Average Humidity in Sublette

This chart illustrates the average monthly humidity levels in Sublette, 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 Sublette is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%77%65%67%81%82%82%84%79%75%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sublette

In Sublette in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sublette.

Maximum UV Index Levels in Sublette for September

The chart shows the monthly maximum UV Index (UVI) for Sublette 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 Sublette typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710111212109753
Data source: Sublette 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 Sublette Compares to Other Months

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

This table compares monthly weather conditions in Sublette, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)17 mm (0.7 inches)74%moderate
February Weather1°C (34°F)14 mm (0.6 inches)77%high
March Weather8°C (47°F)56 mm (2.2 inches)65%high
April Weather12°C (54°F)41 mm (1.6 inches)67%very high
May Weather18°C (64°F)121 mm (4.8 inches)81%extreme
June Weather24°C (76°F)55 mm (2.2 inches)82%extreme
July Weather26°C (80°F)40 mm (1.6 inches)82%extreme
August Weather25°C (77°F)66 mm (2.6 inches)84%very high
September Weather22°C (72°F)39 mm (1.5 inches)79%very high
October Weather13°C (56°F)51 mm (2.0 inches)75%high
November Weather7°C (45°F)11 mm (0.4 inches)79%moderate
December Weather3°C (37°F)22 mm (0.9 inches)83%moderate

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