Last updated: June 24, 2025
In Mount Vernon, United States, the average temperature in July is a comfortable 20°C (69°F), with minimums dipping to 1°C (34°F) and peaking at a sizzling 36°C (97°F). During this month, you can expect a light precipitation amount of just 3 mm (0.1 in) across 0 days, keeping the weather predominantly dry. With an average humidity of 76%, it’s a month where you can enjoy a pleasant climate!
In July in Mount Vernon, the average temperature is 20°C (69°F). Maximum temperatures can reach up to 36°C (97°F), while minimum temperatures can drop as low as 1°C (34°F). This makes it a great time to travel, as you can enjoy warm days while being prepared for cooler temperatures in the evenings.
In Mount Vernon in July, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.
In Mount Vernon in July, humidity is 76%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace that can make outdoor activities sticky and uncomfortable, requiring frequent breaks and plenty of hydration for a pleasant travel experience.
In Mount Vernon in July, 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 July’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 (28°F) | 70 mm (2.7 inches) | 86% | moderate |
| February Weather | -2°C (29°F) | 101 mm (4.0 inches) | 86% | moderate |
| March Weather | 2°C (35°F) | 78 mm (3.1 inches) | 85% | high |
| April Weather | 5°C (41°F) | 80 mm (3.1 inches) | 83% | very high |
| May Weather | 10°C (50°F) | 73 mm (2.9 inches) | 77% | very high |
| June Weather | 15°C (59°F) | 41 mm (1.6 inches) | 81% | extreme |
| July Weather | 20°C (69°F) | 3 mm (0.1 inches) | 76% | very high |
| August Weather | 20°C (68°F) | 14 mm (0.6 inches) | 60% | very high |
| September Weather | 14°C (58°F) | 31 mm (1.2 inches) | 58% | very high |
| October Weather | 6°C (44°F) | 56 mm (2.2 inches) | 75% | high |
| November Weather | 1°C (35°F) | 62 mm (2.4 inches) | 85% | moderate |
| December Weather | -2°C (28°F) | 67 mm (2.6 inches) | 87% | low |