Last updated: March 2, 2024
The weather in Grantsburg, United States, during May is characterized by an average temperature of 14°C (58°F). Highs can soar to 30°C (85°F), while lows may dip to 1°C (35°F). Typically, the humidity level in Grantsburg throughout May hovers around 78%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Grantsburg averages 104 mm (4.1 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 57 minutes of daylight, with the sun shining for approximately 9 hours 11 minutes each day. Additionally, there is a 41% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In May, the UV Index in Grantsburg reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 3 | 5 | 7 | 8 | 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 | ||||||