Islip, NY Climate


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United States / New York / New York-Newark-Jersey City Metro Area / Suffolk County / Islip / Zip Codes
Islip, NY has a humid subtropical climate with long, hot summers and chilly winters. The average temperature in summer is around 83 °F (28 °C) and the average temperature in winter is around 35 °F (2 °C). The area receives an average of 46 inches of rainfall annually, with the wettest months being July and August. Islip also experiences snowfall during the winter months, though it's not as severe as some other parts of the country. During the summer months, Islip residents can expect warm temperatures and plenty of sunshine - ideal for soaking up the rays or heading to one of the many beaches in the area.

Islip, New York gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Islip averages 27 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 206 sunny days per year in Islip. The US average is 205 sunny days.

Islip gets some kind of precipitation, on average, 112 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 23
Rain: averages 47 inches of rain a year
Snow: averages 27 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Islip is 7.2 (10=best), which means it is more comfortable than most places in New York.

8.9 Summer - 5.4 Winter
June, September and August are the most pleasant months in Islip, while January and February are the least comfortable months.

  ClimateIslip, New YorkUnited States
    Unlock38.1 in.
  26.7 in.  Unlock
    Unlock106.2 days
  206 days  Unlock
  82.4°85.8°
    Unlock21.7°
  7.2  Unlock
    Unlock4.3
  13 ft.  Unlock
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Islip with an average high temperature of 82.4°, which ranks it as warmer than most places in New York. In Islip, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Islip are June, August and September.
In Islip, there are 5.9 days annually when the high temperature is over 90°, which is about average compared to other places in New York.
January has the coldest nighttime temperatures for Islip with an average of 23.4°. This is warmer than most places in New York.
In Islip, there are 96.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New York.
In Islip, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New York.
The humidity is usually comfortable in Islip but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.
April is the wettest month in Islip with 4.5 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Summer with 27% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 46.9 inches in Islip means that it is wetter than most places in New York.
April is the rainiest month in Islip with 10.7 days of rain, and August is the driest month with only 7.9 rainy days. There are 111.7 rainy days annually in Islip, which is one of the least rainy places in New York. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 26.7 inches in Islip means that it is less snowy than most places in New York. February is the snowiest month in Islip with 8.0 inches of snow, and 6 months of the year have significant snowfall.
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