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September Weather in Lemmon Valley, United States

Last updated: June 24, 2025

In September, the average temperature in Lemmon Valley, United States hovers around 19°C (67°F). Temperatures can vary significantly, with a minimum of 1°C (34°F) and reaching highs of 37°C (99°F). Expect light rainfall, with a total precipitation of 8 mm (0.3 in) over 2 days, while the average humidity remains comfortably low at 41%.

September Temperature in Lemmon Valley

In September in Lemmon Valley, the average temperature is 19°C (67°F). Maximums can reach 37°C (99°F), while minimums can drop to as low as 1°C (34°F). This temperature range makes Lemmon Valley a great destination for travelers seeking a mix of warm and cool weather experiences.

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

The chart illustrates September temperature patterns in Lemmon Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lemmon Valley, September typically has an average temperature of 19°C (67°F), with highs reaching up to 37°C (99°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec343540495769777566524333
Data source: Temperature data for Lemmon 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 Lemmon Valley

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

September Precipitation Trends in Lemmon Valley

The chart displays monthly precipitation patterns in Lemmon 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 Lemmon Valley, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec75726026346888303252
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lemmon Valley

In Lemmon Valley in September, humidity is 41%. With an average temperature of 19°C (67°F), this humidity feels like a refreshing breeze, making it ideal for exploring outdoor attractions and enjoying leisurely strolls without feeling overheated.

September Average Humidity in Lemmon Valley

This chart illustrates the average monthly humidity levels in Lemmon 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 Lemmon 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 Lemmon Valley

In Lemmon 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 Lemmon Valley.

Maximum UV Index Levels in Lemmon Valley for September

The chart shows the monthly maximum UV Index (UVI) for Lemmon 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 Lemmon Valley typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46891112121110743
Data source: Lemmon 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 Lemmon Valley Compares to Other Months

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

This table compares monthly weather conditions in Lemmon Valley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)75 mm (2.9 inches)85%moderate
February Weather2°C (35°F)72 mm (2.8 inches)87%high
March Weather4°C (40°F)60 mm (2.4 inches)84%very high
April Weather10°C (50°F)26 mm (1.0 inches)78%very high
May Weather14°C (58°F)34 mm (1.3 inches)64%extreme
June Weather20°C (69°F)6 mm (0.2 inches)56%extreme
July Weather25°C (77°F)8 mm (0.3 inches)44%extreme
August Weather24°C (75°F)8 mm (0.3 inches)34%extreme
September Weather19°C (67°F)8 mm (0.3 inches)41%very high
October Weather11°C (53°F)30 mm (1.2 inches)60%high
November Weather6°C (43°F)32 mm (1.3 inches)81%moderate
December Weather1°C (33°F)52 mm (2.0 inches)82%moderate

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