July weather forecast
Mount Vernon, NY

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Weather in July

Reaching the peak of summer, July ices the cake as the city’s warmest month with temperatures reaching 83.5°F (28.6°C). It records 3.74" (95mm) of rainfall, the highest for any month, spread across about 18.2 days. Extended exposure to sunlight reinforces vibrant outdoor activities. Despite the surging mercury, a moderate wind current keeps the atmospheric conditions comfy during the day. July invokes a spirit of enjoying summer leisure activities beneath a brilliant sunshine.

Temperature

July is the warmest month, exhibiting average temperatures of 83.5°F (28.6°C) at the peak and 69.4°F (20.8°C) at the base.

Heat index

The heat index value for July is estimated at a tropical 89.6°F (32°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in July is 71%.

Rainfall

The month with the most rainfall is July, when the rain falls for 18.2 days and typically aggregates up to 3.74" (95mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 46min.
On the first day of July, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:12 pm EDT.

Sunshine

With an average of 10.5h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in July suggests the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What time of the year is the hottest?

July is the warmest month, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 69.4°F (20.8°C).

Is it hot in Mount Vernon during July?

The average high-temperature and low-temperature during July are 83.5°F (28.6°C) and 69.4°F (20.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in July is estimated at 89.6°F (32°C).

What is the average humidity in July?

In Mount Vernon, the average relative humidity in July is 71%.

What is the wettest month?

The month with the most rainfall is July, when the rain falls for 18.2 days and typically aggregates up to 3.74" (95mm) of precipitation.

How much does it rain in July?

In Mount Vernon, in July, it is raining for 18.2 days, with typically 3.74" (95mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Mount Vernon have in July?

In Mount Vernon, the average day length in July is 14h and 46min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:12 pm EDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 10.5h.

When is the highest UV index?

The months with the highest UV index in Mount Vernon are June through August, with an average maximum UV index of 6.

How high is the UV index in July in Mount Vernon?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Mount Vernon, NY

Average temperature in July - Mount Vernon, NY
  • Average high temperature in July: 83.5°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in July: 69.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in July
Mount Vernon, NY

Average pressure in July - Mount Vernon, NY
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Mount Vernon, NY

Average wind speed in July - Mount Vernon, NY
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in July
Mount Vernon, NY

Average humidity in July - Mount Vernon, NY
  • Average humidity in July: 71%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (69%).

Average rainfall in July
Mount Vernon, NY

Average rainfall in July - Mount Vernon, NY
  • Average rainfall in July: 3.74"

The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in July
Mount Vernon, NY

Average rainfall days in July - Mount Vernon, NY
  • Average rainfall days in July: 18.2 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (8 days).

Average snowfall in July
Mount Vernon, NY

Average snowfall in July - Mount Vernon, NY
  • Average snowfall in July: 0"

The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Mount Vernon, NY

Average snowfall days in July - Mount Vernon, NY
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Mount Vernon, NY

Average daylight in July / Average sunshine in July - Mount Vernon, NY
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in July
Mount Vernon, NY

Average sunshine days in July - Mount Vernon, NY
  • Average sunshine days in July: 10.7 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in July
Mount Vernon, NY

Average UV index in July - Mount Vernon, NY
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in July
Mount Vernon, NY

Average cloud cover in July - Mount Vernon, NY
  • Average cloud cover in July: 31

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in July
Mount Vernon, NY

Average visibility in July - Mount Vernon, NY
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Mount Vernon, New York, USA

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