July weather forecast
Lake Success, NY

Weather in July

July, like June, in Lake Success, New York, is a moderately hot summer month, with an average temperature ranging between max 81.9°F (27.7°C) and min 70.3°F (21.3°C).

Temperature

July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 70.3°F (21.3°C).

Heat index

In July, the average heat index is calculated to be a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, pregnancy, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise 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 73%.

Rainfall

July is the month with the most rainfall in Lake Success. Rain falls for 17.9 days and accumulates 4.02" (102mm) of precipitation.

Snowfall

In Lake Success, New York, snow does not fall in May through October.

Daylight

In Lake Success, the average length of the day in July is 14h and 46min.
On the first day of July in Lake Success, New York, sunrise is at 5:27 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:12 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.8h 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 reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Lake Success?

With an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 70.3°F (21.3°C), July is the warmest month.

What is the temperature in July in Lake Success?

In July, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 70.3°F (21.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in July is calculated to be 86°F (30°C).

What is the average humidity in July in Lake Success?

In Lake Success, the average relative humidity in July is 73%.

What is the wettest month in Lake Success?

The month with the most rainfall is July, when the rain falls for 17.9 days and typically aggregates up to 4.02" (102mm) of precipitation.

How many days does it rain in July in Lake Success?

In Lake Success, in July, it is raining for 17.9 days, with typically 4.02" (102mm) of accumulated precipitation.

When it does not snow in Lake Success?

In Lake Success, New York, snow does not fall in May through October.

What is the average length of the day in July in Lake Success?

In Lake Success, the average day length in July is 14h and 46min.

When is the sunrise / sunset in July in Lake Success?

On the first day of July, sunrise is at 5:27 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:12 pm EDT.

What month has the most sunshine in Lake Success?

July has the most sunshine of the year in Lake Success, New York, with an average of 10.8h of sunshine.

How many hours of sunshine does Lake Success have in July?

In Lake Success, New York, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index in Lake Success?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Lake Success.

What is the UV index reading in July in Lake Success?

In Lake Success, New York, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
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
Lake Success, NY

Average temperature in July - Lake Success, NY
  • Average high temperature in July: 81.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in July: 70.3°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in July
Lake Success, NY

Average pressure in July - Lake Success, 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
Lake Success, NY

Average wind speed in July - Lake Success, NY
  • Average wind speed in July: 7.3mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in July
Lake Success, NY

Average humidity in July - Lake Success, NY
  • Average humidity in July: 73%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

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Average rainfall in July
Lake Success, NY

Average rainfall in July - Lake Success, NY
  • Average rainfall in July: 4.02"

The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in July
Lake Success, NY

Average rainfall days in July - Lake Success, NY
  • Average rainfall days in July: 17.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in July
Lake Success, NY

Average snowfall in July - Lake Success, NY
  • Average snowfall in July: 0"

The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Lake Success, NY

Average snowfall days in July - Lake Success, NY
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.5 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
Lake Success, NY

Average daylight in July / Average sunshine in July - Lake Success, NY
  • Average daylight in July: 14h and 46min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in July: 10h and 48min

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

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Average sunshine days in July
Lake Success, NY

Average sunshine days in July - Lake Success, NY
  • Average sunshine days in July: 11 days

The months with the most sunshine days are January and November (19.7 days).
The month with the least sunshine days is July (11 days).

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Average UV index in July
Lake Success, NY

Average UV index in July - Lake Success, 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
Lake Success, NY

Average cloud cover in July - Lake Success, NY
  • Average cloud cover in July: 28

The month with the most cloud cover is December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in July
Lake Success, NY

Average visibility in July - Lake Success, 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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