Last updated: March 2, 2024
The weather in Sam Rayburn, United States, during December is characterized by an average temperature of 13°C (55°F). Highs can soar to 26°C (79°F), while lows may dip to 1°C (34°F). Typically, the humidity level in Sam Rayburn throughout December hovers around 88%.
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Average temperature
Maximum temperature
Humidity
In December, Sam Rayburn averages 133 mm (5.3 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 10 hours 9 minutes of daylight, with the sun shining for approximately 6 hours 40 minutes each day. Additionally, there is a 31% probability of sunny days during this period.
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Chance of sun
In December, the UV Index in Sam Rayburn reaches a maximum of 4, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 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 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||