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July Weather in Mount Vernon, United States

Last updated: June 24, 2025

In July, the average temperature in Mount Vernon, United States hovers around 25°C (77°F), making it a delightful time to visit. However, be prepared for temperature fluctuations, with a minimum of 16°C (60°F) and a maximum soaring to 35°C (96°F). Rain is also possible, with an average precipitation of 143 mm (5.6 in) spread over 13 days. Throughout the month, expect a pleasant average humidity level of 62%.

July Temperature in Mount Vernon

In July in Mount Vernon, the average temperature is 25°C (77°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can drop as low as 16°C (60°F). This makes Mount Vernon an ideal destination for travelers seeking warm weather and pleasant outdoor activities.

July Weather in Mount Vernon: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Mount Vernon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Vernon, July typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (96°F) and lows dropping to around 16°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec333541506171777569594637
Data source: Temperature data for Mount Vernon generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Mount Vernon

In Mount Vernon in July, the precipitation amount is 143 mm (5.6 in) over a span of 13 days.

July Precipitation Trends in Mount Vernon

The chart displays monthly precipitation patterns in Mount Vernon, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Mount Vernon, July typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec6910193114114911431239813286111
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Mount Vernon

In Mount Vernon in July humidity is 62%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making travel enjoyable yet slightly sticky, so staying hydrated and taking breaks in the shade is essential for a comfortable experience.

July Average Humidity in Mount Vernon

This chart illustrates the average monthly humidity levels in Mount Vernon, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Mount Vernon is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Mount Vernon

In Mount Vernon in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mount Vernon.

Maximum UV Index Levels in Mount Vernon for July

The chart shows the monthly maximum UV Index (UVI) for Mount Vernon in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Mount Vernon typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Mount Vernon July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How July Weather in Mount Vernon Compares to Other Months

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.

This table compares monthly weather conditions in Mount Vernon, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)69 mm (2.7 inches)84%moderate
February Weather2°C (35°F)101 mm (4.0 inches)82%moderate
March Weather5°C (41°F)93 mm (3.7 inches)81%high
April Weather10°C (51°F)114 mm (4.5 inches)78%very high
May Weather16°C (61°F)114 mm (4.5 inches)69%very high
June Weather21°C (71°F)91 mm (3.6 inches)69%very high
July Weather25°C (77°F)143 mm (5.6 inches)62%very high
August Weather24°C (75°F)123 mm (4.8 inches)65%very high
September Weather20°C (69°F)98 mm (3.8 inches)68%very high
October Weather15°C (60°F)132 mm (5.2 inches)74%high
November Weather8°C (46°F)86 mm (3.4 inches)82%moderate
December Weather3°C (38°F)111 mm (4.4 inches)80%low

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