July weather forecast
Islip Terrace, NY

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Weather in July

July is a moderately hot summer month in Islip Terrace, New York, with an average temperature fluctuating between 79°F (26.1°C) and 71.8°F (22.1°C).

Temperature

In Islip Terrace, July is the month with the highest recorded average temperatures, measuring a high of 79°F (26.1°C) and a low of 71.8°F (22.1°C).

Humidity

In Islip Terrace, New York, the average relative humidity in July is 75%.

Rainfall

The month with the most rainfall in Islip Terrace is July, when the rain falls for 17.9 days and typically aggregates up to 3.86" (98mm) of precipitation.

Snowfall

In Islip Terrace, snow does not fall in April through September.

Daylight

The average length of the day in July in Islip Terrace is 14h and 45min.
On the first day of the month, sunrise is at 5:25 am and sunset at 8:27 pm. On the last day of July, in Islip Terrace, sunrise is at 5:49 am and sunset at 8:09 pm EDT.

Sunshine

With an average of 10.8h of sunshine, July has the most sunshine of the year in Islip Terrace.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during July leads to these advisories:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Islip Terrace?

The month of July, characterized by an average high of 79°F (26.1°C) and a low of 71.8°F (22.1°C), is recognized as the warmest in Islip Terrace.

What are the temperatures in Islip Terrace in July?

The high-temperature, in July, in Islip Terrace, records 79°F (26.1°C), while the low-temperature is 71.8°F (22.1°C).

What is the average humidity in July in Islip Terrace?

In July, the average relative humidity in Islip Terrace, New York, is 75%.

What is the rainiest month in Islip Terrace?

July is the month with the most rainfall. Rain falls for 17.9 days and accumulates 3.86" (98mm) of precipitation.

How much does it rain in Islip Terrace in July?

In Islip Terrace, during July, the rain falls for 17.9 days and regularly aggregates up to 3.86" (98mm) of precipitation.

When it does not snow in Islip Terrace?

In Islip Terrace, snow does not fall in April through September.

What is the average length of the day in July in Islip Terrace?

In Islip Terrace, New York, the average day length in July is 14h and 45min.

When is the sunrise / sunset in July in Islip Terrace?

In July, on the first day of the month, sunrise is at 5:25 am and sunset at 8:27 pm. On the last day of the month, in Islip Terrace, sunrise is at 5:49 am and sunset at 8:09 pm EDT.

What month has the most sunshine in Islip Terrace?

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

How many hours of sunshine does Islip Terrace have in July?

In Islip Terrace, New York, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index in Islip Terrace?

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

How high is the UV index in July in Islip Terrace?

The average daily maximum UV index in July in Islip Terrace, New York, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Islip Terrace, NY

Average temperature in July - Islip Terrace, NY
  • Average high temperature in July: 79°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 71.8°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in July
Islip Terrace, NY

Average pressure in July - Islip Terrace, 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
Islip Terrace, NY

Average wind speed in July - Islip Terrace, NY
  • Average wind speed in July: 8.6mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).

Average humidity in July
Islip Terrace, NY

Average humidity in July - Islip Terrace, NY
  • Average humidity in July: 75%

The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).

Average rainfall in July
Islip Terrace, NY

Average rainfall in July - Islip Terrace, NY
  • Average rainfall in July: 3.86"

The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in July
Islip Terrace, NY

Average rainfall days in July - Islip Terrace, 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 (7.6 days).

Average snowfall in July
Islip Terrace, NY

Average snowfall in July - Islip Terrace, NY
  • Average snowfall in July: 0"

The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in July
Islip Terrace, NY

Average snowfall days in July - Islip Terrace, NY
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (4.2 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
Islip Terrace, NY

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

The month with the longest days is June (Average daylight: 15h and 0min).
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 48min).

Average sunshine days in July
Islip Terrace, NY

Average sunshine days in July - Islip Terrace, NY
  • Average sunshine days in July: 11.2 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in July
Islip Terrace, NY

Average UV index in July - Islip Terrace, 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
Islip Terrace, NY

Average cloud cover in July - Islip Terrace, NY
  • Average cloud cover in July: 28

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in July
Islip Terrace, NY

Average visibility in July - Islip Terrace, 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).

Islip Terrace, New York, USA

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