Last updated: June 24, 2025
In September, the average temperature in Pioneer Junction, United States is a mild 13°C (55°F). However, be prepared for a range of temperatures, with lows dipping to -3°C (26°F) and highs soaring up to 31°C (88°F). Expect some wet days, as 52 mm (2.0 in) of precipitation is typical over about 7 days. You'll also experience a moderate average humidity of 71%, making for a noticeable atmosphere during your visit.
In September in Pioneer Junction, the average temperature is 13°C (55°F). Maximums can reach 31°C (88°F) and minimums can be as low as -3°C (26°F). Be prepared for a wide range of temperatures when traveling to Pioneer Junction during this month.
In Pioneer Junction in September, the precipitation amount is 52 mm (2.0 in) over a duration of 7 days.
In Pioneer Junction in September humidity is 71%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, making travel a bit challenging as the moisture clings to your skin and the air feels thick, creating a sense of heaviness that can sap your energy while exploring.
In Pioneer Junction 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 Pioneer Junction.
UV Risk Categories
Weather in Pioneer Junction varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Pioneer Junction, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 97 mm (3.8 inches) | 95% | low |
| February Weather | -7°C (20°F) | 123 mm (4.8 inches) | 93% | moderate |
| March Weather | -1°C (31°F) | 88 mm (3.5 inches) | 91% | high |
| April Weather | 3°C (38°F) | 92 mm (3.6 inches) | 88% | high |
| May Weather | 10°C (51°F) | 75 mm (2.9 inches) | 83% | very high |
| June Weather | 15°C (58°F) | 56 mm (2.2 inches) | 80% | very high |
| July Weather | 19°C (67°F) | 19 mm (0.7 inches) | 82% | very high |
| August Weather | 19°C (66°F) | 31 mm (1.2 inches) | 71% | very high |
| September Weather | 13°C (55°F) | 52 mm (2.0 inches) | 71% | high |
| October Weather | 5°C (40°F) | 101 mm (4.0 inches) | 85% | moderate |
| November Weather | 0°C (32°F) | 116 mm (4.6 inches) | 90% | moderate |
| December Weather | -4°C (26°F) | 123 mm (4.9 inches) | 96% | low |