Last updated: March 2, 2024
The weather in Napoleon, United States, during April is characterized by an average temperature of 9°C (49°F). Highs can soar to 27°C (80°F), while lows may dip to -5°C (24°F). Typically, the humidity level in Napoleon throughout April hovers around 87%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Napoleon averages 93 mm (3.7 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 21 minutes of daylight, with the sun shining for approximately 7 hours 42 minutes each day. Additionally, there is a 41% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Napoleon 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 | ||||||