July weather forecast
Old Westbury, NY

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Weather in July

July is a moderately hot summer month in Old Westbury, New York, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 71.2°F (21.8°C).

Temperature

In Old Westbury, the highest average temperatures are observed in July, with a high of 80.1°F (26.7°C) and a low of 71.2°F (21.8°C).

Humidity

In Old Westbury, New York, the average relative humidity in July is 74%.

Rainfall

The month with the most rainfall in Old Westbury is July, when the rain falls for 11.3 days and typically aggregates up to 0.87" (22mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Old Westbury, the average length of the day in July is 14h and 46min.
On the first day of July in Old Westbury, sunrise is at 5:27 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:10 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 value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

Old Westbury's warmest month, July, generally records average temperatures ranging from a high of 80.1°F (26.7°C) to a low of 71.2°F (21.8°C).

What is the usual temperature for Old Westbury in July?

July temperatures vary between a high-temperature of 80.1°F (26.7°C) and a low-temperature of 71.2°F (21.8°C).

What is the average humidity in July?

In July, the average relative humidity is 74%.

What is the rainiest month?

The month with the most rainfall is July, when the rain falls for 11.3 days and typically aggregates up to 0.87" (22mm) of precipitation.

How much does it rain in July?

In Old Westbury, during July, the rain falls for 11.3 days and regularly aggregates up to 0.87" (22mm) of precipitation.

When it does not snow?

April through November are months without snowfall in Old Westbury.

How many hours of daylight does Old Westbury have in July?

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

When are sunrise and sunset in July in Old Westbury?

On the first day of July, sunrise is at 5:27 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:10 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year in Old Westbury, with an average of 10.8h of sunshine.

How many hours of sunshine does Old Westbury have in July?

In Old Westbury, New York, the average sunshine duration in July is 10.8h.

What is the month with the highest UV index?

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

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
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
Old Westbury, NY

Average temperature in July - Old Westbury, NY
  • Average high temperature in July: 80.1°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in July: 71.2°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in July
Old Westbury, NY

Average pressure in July - Old Westbury, NY
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Old Westbury, NY

Average wind speed in July - Old Westbury, NY
  • Average wind speed in July: 8.1mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in July
Old Westbury, NY

Average humidity in July - Old Westbury, NY
  • Average humidity in July: 74%

The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).

Average rainfall in July
Old Westbury, NY

Average rainfall in July - Old Westbury, NY
  • Average rainfall in July: 0.87"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days in July
Old Westbury, NY

Average rainfall days in July - Old Westbury, NY
  • Average rainfall days in July: 11.3 days

The month with the highest number of rainy days is July (11.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in July
Old Westbury, NY

Average snowfall in July - Old Westbury, NY
  • Average snowfall in July: 0"

The month with the highest snowfall is March (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in July
Old Westbury, NY

Average snowfall days in July - Old Westbury, NY
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Old Westbury, NY

Average daylight in July / Average sunshine in July - Old Westbury, 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 5min

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 42min).

Average sunshine days in July
Old Westbury, NY

Average sunshine days in July - Old Westbury, NY
  • Average sunshine days in July: 16.9 days

The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is July (16.9 days).

Average UV index in July
Old Westbury, NY

Average UV index in July - Old Westbury, 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 and December (UV index 2).

Average cloud cover in July
Old Westbury, NY

Average cloud cover in July - Old Westbury, NY
  • Average cloud cover in July: 28

The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in July
Old Westbury, NY

Average visibility in July - Old Westbury, 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).

Old Westbury, New York, USA

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