nomadseason

September Weather in Pioneer, United States

Last updated: June 24, 2025

In September, the average temperature in Pioneer, United States is a pleasant 19°C (66°F), with extremes ranging from a brisk 3°C (37°F) to a hot 33°C (91°F). Expect 62 mm (2.4 in) of precipitation spread over 8 days, contributing to a relatively high average humidity of 78%. Embrace the diverse climate of this captivating destination!

September Temperature in Pioneer

In September in Pioneer, the average temperature is 19°C (66°F). Maximums can reach 33°C (91°F) and minimums can be as low as 3°C (37°F). This makes it an ideal time for travelers to experience a range of outdoor activities, from enjoying warm days to cool evenings.

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

The chart illustrates September temperature patterns in Pioneer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pioneer, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec272838486071757266543933
Data source: Temperature data for Pioneer generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Pioneer

In Pioneer in September, the precipitation amount is 62 mm (2.4 in) over the course of 8 days.

September Precipitation Trends in Pioneer

The chart displays monthly precipitation patterns in Pioneer, 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 Pioneer, September typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec72729310014111212192621038257
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Pioneer

In Pioneer in September, humidity is 78%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making traveling quite uncomfortable unless you're well-prepared with lightweight, breathable clothing and frequent breaks to stay hydrated.

September Average Humidity in Pioneer

This chart illustrates the average monthly humidity levels in Pioneer, 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 Pioneer is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Pioneer

In Pioneer in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Pioneer.

Maximum UV Index Levels in Pioneer for September

The chart shows the monthly maximum UV Index (UVI) for Pioneer 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 Pioneer typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
Data source: Pioneer 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 Pioneer Compares to Other Months

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

This table compares monthly weather conditions in Pioneer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)72 mm (2.8 inches)88%moderate
February Weather-2°C (28°F)72 mm (2.8 inches)87%moderate
March Weather3°C (38°F)93 mm (3.6 inches)87%high
April Weather9°C (48°F)100 mm (3.9 inches)87%very high
May Weather16°C (61°F)141 mm (5.6 inches)81%very high
June Weather21°C (71°F)112 mm (4.4 inches)82%very high
July Weather24°C (75°F)121 mm (4.8 inches)81%very high
August Weather22°C (72°F)92 mm (3.6 inches)78%very high
September Weather19°C (66°F)62 mm (2.4 inches)78%very high
October Weather12°C (54°F)103 mm (4.0 inches)82%high
November Weather4°C (39°F)82 mm (3.2 inches)89%moderate
December Weather0°C (33°F)57 mm (2.2 inches)86%low

Compare Pioneer's Climate with Cities Worldwide