Last updated: June 24, 2025
In August, the average temperature in Mount Vernon, United States hovers around 24°C (76°F), making it a pleasant destination for visitors. However, temperatures can range from a minimum of 13°C (56°F) to a maximum of 36°C (98°F), offering a diverse climate experience. Expect about 117 mm (4.6 in) of precipitation spread across 13 days, contributing to an average humidity level of 66%.
In August in Mount Vernon, the average temperature is 24°C (76°F), with maximums reaching 36°C (98°F) and minimums dropping to as low as 13°C (56°F). Be sure to pack light clothing for the day and a sweater for the cooler evenings.
In Mount Vernon in August, the total precipitation amount is 117 mm (4.6 in) spread over 13 days.
In Mount Vernon in August humidity is 66%. With an average temperature of 24°C (76°F), this humidity feels like a warm, tropical embrace, making travel both invigorating and slightly exhausting, as you immerse yourself in the vibrant atmosphere while constantly seeking shade and refreshment.
In Mount Vernon in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Mount Vernon.
UV Risk Categories
Weather in Mount Vernon varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Mount Vernon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 99 mm (3.9 inches) | 88% | moderate |
| February Weather | 6°C (43°F) | 182 mm (7.2 inches) | 88% | high |
| March Weather | 10°C (49°F) | 139 mm (5.5 inches) | 87% | high |
| April Weather | 14°C (57°F) | 135 mm (5.3 inches) | 84% | very high |
| May Weather | 20°C (68°F) | 128 mm (5.0 inches) | 84% | extreme |
| June Weather | 23°C (73°F) | 148 mm (5.8 inches) | 83% | extreme |
| July Weather | 25°C (78°F) | 105 mm (4.1 inches) | 79% | extreme |
| August Weather | 24°C (76°F) | 117 mm (4.6 inches) | 66% | very high |
| September Weather | 22°C (72°F) | 121 mm (4.7 inches) | 67% | very high |
| October Weather | 16°C (61°F) | 118 mm (4.6 inches) | 76% | high |
| November Weather | 8°C (46°F) | 80 mm (3.1 inches) | 89% | moderate |
| December Weather | 6°C (43°F) | 139 mm (5.5 inches) | 88% | moderate |