Last updated: June 24, 2025
In September, the average temperature in Star Valley Ranch, United States hovers around 12°C (53°F). Expect a wide range of temperatures, with a minimum dipping to -7°C (19°F) and a maximum soaring to 29°C (85°F). During this time, the region experiences an average precipitation of 50 mm (2.0 in) over approximately 7 days, contributing to an overall humidity level of 52%.
In September in Star Valley Ranch, the average temperature is 12°C (53°F). Maximums can reach 29°C (85°F) and minimums can be as low as -7°C (19°F). This variation in temperature means travelers should be prepared for both warm days and chilly nights, making it essential to pack accordingly for their trip.
In Star Valley Ranch in September, the precipitation amount is 50 mm (2.0 in) over a span of 7 days.
In Star Valley Ranch in September humidity is 52%. With an average temperature of 12°C (53°F), this humidity feels like a cool, crisp embrace, making it a refreshing time for traveling, though you might need a light jacket for comfort while exploring.
In Star Valley Ranch in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Star Valley Ranch.
UV Risk Categories
Weather in Star Valley Ranch varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Star Valley Ranch, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 79 mm (3.1 inches) | 95% | moderate |
| February Weather | -6°C (22°F) | 120 mm (4.7 inches) | 95% | moderate |
| March Weather | -1°C (31°F) | 64 mm (2.5 inches) | 90% | very high |
| April Weather | 1°C (35°F) | 85 mm (3.4 inches) | 81% | very high |
| May Weather | 5°C (42°F) | 71 mm (2.8 inches) | 71% | extreme |
| June Weather | 13°C (55°F) | 45 mm (1.8 inches) | 64% | extreme |
| July Weather | 18°C (64°F) | 16 mm (0.6 inches) | 59% | extreme |
| August Weather | 17°C (62°F) | 28 mm (1.1 inches) | 49% | extreme |
| September Weather | 12°C (53°F) | 50 mm (2.0 inches) | 52% | very high |
| October Weather | 3°C (38°F) | 61 mm (2.4 inches) | 69% | high |
| November Weather | -3°C (27°F) | 77 mm (3.0 inches) | 86% | moderate |
| December Weather | -7°C (20°F) | 80 mm (3.1 inches) | 91% | moderate |