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September Weather in Juliaetta, United States

Last updated: June 24, 2025

In Juliaetta, United States, the average temperature in September is a pleasant 17°C (64°F). Expect a range that can dip to a minimum of 3°C (37°F) and soar to a maximum of 36°C (97°F). With an average precipitation of 26 mm (1.0 in) spread over just 4 days, you'll likely enjoy a mix of sun and occasional showers. The average humidity hovers around 62%, making it a comfortable time to be outdoors!

September Temperature in Juliaetta

In September in Juliaetta, the average temperature is 17°C (64°F). Maximum temperatures can reach 36°C (97°F), while minimum temperatures can dip as low as 3°C (37°F). This makes Juliaetta a great destination for travelers looking to experience a mix of warm and cooler weather.

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

The chart illustrates September temperature patterns in Juliaetta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juliaetta, September typically has an average temperature of 17°C (64°F), with highs reaching up to 36°C (97°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec313340485765757463493933
Data source: Temperature data for Juliaetta 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 Juliaetta

In Juliaetta in September, the precipitation amount is 26 mm (1.0 in) over the course of 4 days.

September Precipitation Trends in Juliaetta

The chart displays monthly precipitation patterns in Juliaetta, 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 Juliaetta, September typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec63106716054313926617383
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Juliaetta

In Juliaetta in September humidity is 62%. With an average temperature of 17°C (64°F), this humidity feels like a refreshing embrace, making for pleasant travel conditions that invigorate the senses while encouraging leisurely strolls and outdoor exploration.

September Average Humidity in Juliaetta

This chart illustrates the average monthly humidity levels in Juliaetta, 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 Juliaetta 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 Juliaetta

In Juliaetta 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 Juliaetta.

Maximum UV Index Levels in Juliaetta for September

The chart shows the monthly maximum UV Index (UVI) for Juliaetta 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 Juliaetta typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Juliaetta 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 Juliaetta Compares to Other Months

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

This table compares monthly weather conditions in Juliaetta, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)62 mm (2.5 inches)89%low
February Weather0°C (33°F)106 mm (4.2 inches)89%moderate
March Weather5°C (41°F)71 mm (2.8 inches)87%high
April Weather9°C (48°F)59 mm (2.3 inches)84%high
May Weather14°C (57°F)53 mm (2.1 inches)77%very high
June Weather18°C (65°F)31 mm (1.2 inches)78%very high
July Weather24°C (75°F)3 mm (0.1 inches)77%very high
August Weather23°C (74°F)9 mm (0.4 inches)64%very high
September Weather17°C (64°F)26 mm (1.0 inches)62%high
October Weather10°C (49°F)61 mm (2.4 inches)79%moderate
November Weather4°C (40°F)73 mm (2.9 inches)87%moderate
December Weather0°C (33°F)83 mm (3.3 inches)90%low

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