Last updated: March 2, 2024
The weather in Decatur, United States, during May is characterized by an average temperature of 22°C (71°F). Highs can soar to 32°C (90°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Decatur throughout May hovers around 81%.
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Average temperature
Maximum temperature
Humidity
In May, Decatur averages 100 mm (4.0 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 55 minutes of daylight, with the sun shining for approximately 10 hours 8 minutes each day. Additionally, there is a 39% probability of sunny days during this period.
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Chance of sun
In May, the UV Index in Decatur reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 7 | 9 | 11 | 11 | 9 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||