Last updated: June 24, 2025
In September, the average temperature in Junction City, United States hovers around 20°C (69°F). However, be prepared for variations, as it can dip to a minimum of 4°C (40°F) and soar to a maximum of 36°C (97°F). During this period, expect approximately 97 mm (3.8 in) of precipitation spread over 9 days, contributing to an average humidity of 73%.
In September in Junction City, the average temperature is 20°C (69°F). Maximums can reach 36°C (97°F) while minimums can drop to as low as 4°C (40°F). This variety in temperatures makes it essential for travelers to pack both light clothing for the warmer days and layers for cooler evenings.
In Junction City in September, the total precipitation amount reaches 97 mm (3.8 in) over the course of 9 days.
In Junction City in September humidity is 73%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making travel slightly sticky but ultimately comfortable as long as you stay hydrated and take breaks in the shade.
In Junction City 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 Junction City.
UV Risk Categories
Weather in Junction City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Junction City, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 0°C (32°F) | 88 mm (3.5 inches) | 88% | moderate |
February Weather | 2°C (36°F) | 118 mm (4.7 inches) | 88% | moderate |
March Weather | 6°C (43°F) | 118 mm (4.7 inches) | 88% | high |
April Weather | 11°C (53°F) | 136 mm (5.4 inches) | 86% | very high |
May Weather | 18°C (64°F) | 136 mm (5.3 inches) | 82% | very high |
June Weather | 22°C (72°F) | 168 mm (6.6 inches) | 84% | very high |
July Weather | 24°C (76°F) | 128 mm (5.0 inches) | 82% | very high |
August Weather | 23°C (74°F) | 107 mm (4.2 inches) | 73% | very high |
September Weather | 20°C (69°F) | 97 mm (3.8 inches) | 73% | very high |
October Weather | 14°C (58°F) | 105 mm (4.1 inches) | 81% | high |
November Weather | 6°C (43°F) | 99 mm (3.9 inches) | 89% | moderate |
December Weather | 3°C (37°F) | 108 mm (4.2 inches) | 86% | moderate |