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September Weather in Smith Valley, United States

Last updated: June 24, 2025

In Smith Valley, United States, the average temperature in September is a comfortable 18°C (65°F). However, be prepared for a range, as temperatures can dip to a chilly -1°C (31°F) or soar to a sweltering 37°C (98°F). With precipitation averaging 8 mm (0.3 in) over just 2 days, you can expect mostly dry conditions. Don’t forget, the average humidity sits at a moderate 41%, making for pleasant weather overall!

September Temperature in Smith Valley

In September in Smith Valley, the average temperature is 18°C (65°F). Maximums can reach 37°C (98°F), and minimums can drop to as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling to Smith Valley this month, as it can vary dramatically between day and night.

September Weather in Smith Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Smith Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smith Valley, September typically has an average temperature of 18°C (65°F), with highs reaching up to 37°C (98°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec323237485668767465504131
Data source: Temperature data for Smith Valley 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 Smith Valley

In Smith Valley in September, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

September Precipitation Trends in Smith Valley

The chart displays monthly precipitation patterns in Smith Valley, 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 Smith Valley, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec686446302971198272946
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Smith Valley

In Smith Valley in September humidity is 41%. With an average temperature of 18°C (65°F), this humidity feels like a pleasant, crisp atmosphere, perfect for exploring.

September Average Humidity in Smith Valley

This chart illustrates the average monthly humidity levels in Smith Valley, 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 Smith Valley is approximately 41%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%84%78%64%56%44%34%41%60%81%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Smith Valley

In Smith Valley in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Smith Valley.

Maximum UV Index Levels in Smith Valley for September

The chart shows the monthly maximum UV Index (UVI) for Smith Valley 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 Smith Valley typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101212121110754
Data source: Smith Valley 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 Smith Valley Compares to Other Months

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

This table compares monthly weather conditions in Smith Valley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)68 mm (2.7 inches)85%moderate
February Weather0°C (32°F)64 mm (2.5 inches)87%high
March Weather3°C (38°F)46 mm (1.8 inches)84%very high
April Weather9°C (48°F)30 mm (1.2 inches)78%very high
May Weather13°C (56°F)29 mm (1.2 inches)64%extreme
June Weather20°C (68°F)7 mm (0.3 inches)56%extreme
July Weather24°C (76°F)10 mm (0.4 inches)44%extreme
August Weather23°C (74°F)9 mm (0.3 inches)34%extreme
September Weather18°C (65°F)8 mm (0.3 inches)41%very high
October Weather10°C (51°F)27 mm (1.0 inches)60%high
November Weather5°C (42°F)29 mm (1.2 inches)81%moderate
December Weather0°C (31°F)46 mm (1.8 inches)82%moderate

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