Last updated: March 2, 2024
The weather in Fort Pierre, United States, during May is characterized by an average temperature of 15°C (59°F). Highs can soar to 31°C (87°F), while lows may dip to 1°C (34°F). Typically, the humidity level in Fort Pierre throughout May hovers around 75%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Fort Pierre averages 78 mm (3.1 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 14 hours 48 minutes of daylight, with the sun shining for approximately 9 hours 37 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Fort Pierre 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 | 1 | 2 | 4 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 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 | ||||||