Last updated: June 24, 2025
In August, the average temperature in Casselton, United States is a pleasant 20°C (69°F). Expect a minimum of 8°C (46°F) and a maximum of 35°C (95°F), offering a wide range for outdoor activities. Be prepared for some rain, with an average precipitation of 87 mm (3.4 in) spread over 9 days. With an average humidity of 78%, it’s a month that invites both adventure and relaxation!
In August in Casselton, the average temperature is 20°C (69°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 8°C (46°F). This means travelers should be prepared for warm days and cooler evenings, making it a great time to explore outdoor activities.
In Casselton in August, the precipitation amount is 87 mm (3.4 in), occurring over a span of 9 days.
In Casselton in August, humidity is 78%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket, making travel somewhat uncomfortable as sweat clings to your skin and the air feels thick and heavy, urging you to seek out shaded areas and refreshing drinks.
In Casselton in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Casselton.
UV Risk Categories
Weather in Casselton varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Casselton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -12°C (12°F) | 17 mm (0.7 inches) | 90% | low |
| February Weather | -12°C (11°F) | 20 mm (0.8 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 26 mm (1.0 inches) | 85% | moderate |
| April Weather | 4°C (40°F) | 47 mm (1.9 inches) | 81% | high |
| May Weather | 14°C (57°F) | 57 mm (2.2 inches) | 75% | very high |
| June Weather | 21°C (70°F) | 98 mm (3.9 inches) | 79% | very high |
| July Weather | 23°C (73°F) | 74 mm (2.9 inches) | 76% | very high |
| August Weather | 20°C (69°F) | 87 mm (3.4 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 68 mm (2.7 inches) | 77% | high |
| October Weather | 7°C (45°F) | 82 mm (3.2 inches) | 79% | moderate |
| November Weather | -2°C (29°F) | 17 mm (0.7 inches) | 86% | moderate |
| December Weather | -7°C (19°F) | 39 mm (1.5 inches) | 86% | low |