Last updated: March 2, 2024
The weather in Alton, United States, during March is characterized by an average temperature of 10°C (50°F). Highs can soar to 26°C (79°F), while lows may dip to -5°C (23°F). Typically, the humidity level in Alton throughout March hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In March, Alton averages 148 mm (5.8 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 11 hours 59 minutes of daylight, with the sun shining for approximately 6 hours 44 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In March, the UV Index in Alton reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 | 4 | 6 | 7 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||