July weather forecast and climate
West Islip, NY

July in West Islip, New York, is a warm summer month, with temperature in the range of an average low of 72°F (22.2°C) and an average high of 79°F (26.1°C).

Temperature

The warmest month is July, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 72°F (22.2°C).

Humidity

In West Islip, the average relative humidity is 76%.

Rainfall

July is the month with the most rainfall in West Islip. Rain falls for 17.3 days and accumulates 3.98" (101mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In July, the average length of the day is 14.7h.

Sunshine

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

UV index

Months with the highest UV index in West Islip are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. 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.

What is the warmest month in West Islip?

The warmest month in West Islip is July, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 72°F (22.2°C).

What is the temperature in July in West Islip?

In July, the average high-temperature is 79°F (26.1°C), and the average low-temperature is 72°F (22.2°C).

What is the average humidity in July in West Islip?

In West Islip, the average relative humidity in July is 76%.

How much does it rain in West Islip in July?

In July, in West Islip, the rain falls for 17.3 days. Throughout July, 3.98" (101mm) of precipitation is accumulated.

What is the wettest month in West Islip?

July is the month with the most rainfall in West Islip, New York. Rain falls for 17.3 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow in West Islip?

In West Islip, New York, snow does not fall in May through September.

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

In July, the average length of the day is 14.7h.

What month has the most sunshine in West Islip?

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

How long on average sun shines in July in West Islip?

The average sunshine in July in West Islip, New York, is 10.8h.

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

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

What is the UV index intensity in July in West Islip?

In July, the average daily maximum UV index in West Islip, New York, is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in July - West Islip, 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: 72°F

Months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

Average pressure in July - West Islip, NY
  • Average pressure in July: 29.96"

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

Average wind speed in July - West Islip, NY
  • Average wind speed in July: 8.9mph

The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in July - West Islip, NY
  • Average humidity in July: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in July - West Islip, NY
  • Average rainfall in July: 3.98"

The wettest month (with the highest rainfall) is July (3.98").
The driest month (with the least rainfall) is January (2.2").

Average rainfall days in July - West Islip, NY
  • Average rainfall days in July: 17.3 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).

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

The month with the highest snowfall is March (2.17").
Months with the least snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is February (4.2 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July / Average sunshine in July - West Islip, NY
  • Average daylight in July: 14.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in July: 10.8h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in July - West Islip, NY
  • Average sunshine days in July: 11.4 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in July - West Islip, NY
  • Average UV index in July: 6

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

Average cloud cover in July - West Islip, 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 - West Islip, NY
  • Average visibility in July: 6mi

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