Last updated: March 2, 2024
The weather in Idaho Springs, United States, during September is characterized by an average temperature of 11°C (51°F). Highs can soar to 26°C (78°F), while lows may dip to -5°C (23°F). Typically, the humidity level in Idaho Springs throughout September hovers around 65%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Idaho Springs averages 70 mm (2.8 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 23 minutes of daylight, with the sun shining for approximately 10 hours 27 minutes each day. Additionally, there is a 68% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Idaho Springs reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 3 | 5 | 8 | 9 | 10 | 9 | 7 | 5 | 2 | 1 | 1 |
| Exposure | Low | Moderate | VeryHigh | High | Moderate | Low | |||||||
| Time to burn | 45 min | 30 min | 15 min | 25 min | 30 min | 45 min | |||||||