Last updated: March 2, 2024
The weather in Decatur, United States, during May is characterized by an average temperature of 16°C (60°F). Highs can soar to 31°C (88°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Decatur throughout May hovers around 78%.
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Average temperature
Maximum temperature
Humidity
In May, Decatur averages 136 mm (5.3 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 14 hours 38 minutes of daylight, with the sun shining for approximately 8 hours 34 minutes each day. Additionally, there is a 35% probability of sunny days during this period.
Precipitation
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Chance of sun
In May, the UV Index in Decatur reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 2 | 4 | 6 | 7 | 9 | 9 | 8 | 7 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||