July weather forecast
Mount Vernon, NY

Weather in July

July, like June, in Mount Vernon, New York, is another warm summer month, with an average temperature fluctuating between 69.4°F (20.8°C) and 83.5°F (28.6°C).

Temperature

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

Heat index

The average heat index in July is appraised at a hot 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, differences in body mass, height, and shape, clothing, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in July is 71%.

Rainfall

The month with the most rainfall in Mount Vernon 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 in Mount Vernon.

Daylight

The average length of the day in July in Mount Vernon is 14h and 46min.
On the first day of the month, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of July, in Mount Vernon, sunrise is at 5:50 am and sunset at 8:12 pm EDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Mount Vernon?

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

What is the temperature in July in Mount Vernon?

In July, in Mount Vernon, the average high-temperature is 83.5°F (28.6°C), and the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in July is appraised at 89.6°F (32°C).

What is the average humidity in July in Mount Vernon?

The average relative humidity in July in Mount Vernon is 71%.

What is the wettest month in Mount Vernon?

July is the month with the most rainfall. Rain falls for 18.2 days and accumulates 3.74" (95mm) of precipitation.

How much does it rain in Mount Vernon in July?

In Mount Vernon, New York, in July, during 18.2 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow in Mount Vernon?

May through October are months without snowfall in Mount Vernon.

What is the average length of the day in July in Mount Vernon?

The average day length in July is 14h and 46min.

When are sunrise and sunset in July in Mount Vernon?

In July, on the first day of the month, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of the month, in Mount Vernon, sunrise is at 5:50 am and sunset at 8:12 pm EDT.

What month has the most sunshine in Mount Vernon?

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

How long on average sun shines in July in Mount Vernon?

In Mount Vernon, New York, the average sunshine duration in July is 10.5h.

When is the highest UV index in Mount Vernon?

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

What is the UV index reading in July in Mount Vernon?

In Mount Vernon, New York, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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 46min

The month with the longest days is June (Average daylight: 15h and 4min).
The month with the shortest days is December (Average daylight: 9h and 17min).

  • Average sunshine in July: 10h and 30min

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).

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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).

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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).

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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).

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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).

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