Last updated: March 2, 2024
The weather in Casselman, Canada, during April is characterized by an average temperature of 6°C (43°F). Highs can soar to 22°C (72°F), while lows may dip to -6°C (22°F). Typically, the humidity level in Casselman throughout April hovers around 82%.
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Average temperature
Maximum temperature
Humidity
In April, Casselman averages 118 mm (4.6 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 13 hours 32 minutes of daylight, with the sun shining for approximately 7 hours 35 minutes each day. Additionally, there is a 37% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In April, the UV Index in Casselman reaches a maximum of 8, 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 | 3 | 4 | 6 | 7 | 8 | 7 | 6 | 4 | 2 | 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 | ||||||