Last updated: March 2, 2024
The weather in Clam Falls, United States, during September is characterized by an average temperature of 17°C (62°F). Highs can soar to 30°C (85°F), while lows may dip to 5°C (40°F). Typically, the humidity level in Clam Falls throughout September hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In September, Clam Falls averages 97 mm (3.8 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 28 minutes of daylight, with the sun shining for approximately 8 hours 23 minutes each day. Additionally, there is a 57% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in Clam Falls reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 | 2 | 4 | 5 | 7 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||