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September Weather in Smelterville, United States

Last updated: June 24, 2025

In September, the average temperature in Smelterville, United States hovers around 14°C (58°F). Expect a range from a chilly -1°C (31°F) to a sweltering 34°C (93°F). During this time, precipitation measures about 49 mm (1.9 in) over 7 days, and the average humidity sits at 62%, adding a bit of mugginess to the air.

September Temperature in Smelterville

In September in Smelterville, the average temperature is 14°C (58°F). The maximum can reach 34°C (93°F), and the minimum can be as low as -1°C (31°F). Therefore, travelers should be prepared for a wide range of temperatures and pack accordingly to ensure comfort during their visit.

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

The chart illustrates September temperature patterns in Smelterville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smelterville, September typically has an average temperature of 14°C (58°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec282635425360706858433529
Data source: Temperature data for Smelterville 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 Smelterville

In Smelterville in September, the precipitation amount is 49 mm (1.9 in) over the course of 7 days.

September Precipitation Trends in Smelterville

The chart displays monthly precipitation patterns in Smelterville, 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 Smelterville, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec1141431001008548102149105139134
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Smelterville

In Smelterville in September humidity is 62%. With an average temperature of 14°C (58°F), this humidity feels like a gentle embrace, making outdoor explorations invigorating yet comfortable, perfect for leisurely strolls and sightseeing.

September Average Humidity in Smelterville

This chart illustrates the average monthly humidity levels in Smelterville, 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 Smelterville is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Smelterville

In Smelterville in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Smelterville.

Maximum UV Index Levels in Smelterville for September

The chart shows the monthly maximum UV Index (UVI) for Smelterville 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 Smelterville typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467891097532
Data source: Smelterville 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 Smelterville Compares to Other Months

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

This table compares monthly weather conditions in Smelterville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)114 mm (4.5 inches)89%low
February Weather-3°C (26°F)143 mm (5.6 inches)89%moderate
March Weather2°C (35°F)100 mm (3.9 inches)87%high
April Weather6°C (42°F)100 mm (3.9 inches)84%high
May Weather11°C (53°F)85 mm (3.3 inches)77%very high
June Weather16°C (61°F)48 mm (1.9 inches)78%very high
July Weather21°C (70°F)10 mm (0.4 inches)77%very high
August Weather20°C (69°F)21 mm (0.8 inches)64%very high
September Weather14°C (58°F)49 mm (1.9 inches)62%high
October Weather6°C (44°F)105 mm (4.1 inches)79%moderate
November Weather2°C (35°F)139 mm (5.5 inches)87%moderate
December Weather-2°C (29°F)134 mm (5.3 inches)90%low

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