Last updated: March 2, 2024
The weather in South Chicago Heights, United States, during May is characterized by an average temperature of 16°C (61°F). Highs can soar to 31°C (88°F), while lows may dip to 2°C (37°F). Typically, the humidity level in South Chicago Heights throughout May hovers around 79%.
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Average temperature
Maximum temperature
Humidity
In May, South Chicago Heights averages 163 mm (6.4 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 14 hours 31 minutes of daylight, with the sun shining for approximately 9 hours 20 minutes each day. Additionally, there is a 33% probability of sunny days during this period.
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Chance of sun
In May, the UV Index in South Chicago Heights 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 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 1 | 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 | ||||||