West Islip, NY Climate

West Islip, NY has a humid subtropical climate with mild winters and hot, humid summers. Average monthly temperatures range from 18°F in January to 73°F in July, with extreme temperatures dipping to -1°F in the winter and reaching up to 99°F during the summer months. Precipitation is evenly distributed throughout the year, with an average of 48 inches annually. Snowfall in West Islip is generally light, averaging 26 inches a season.

West Islip, New York gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 208 sunny days per year in West Islip. The US average is 205 sunny days.

West Islip gets some kind of precipitation, on average, 113 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 24
Rain: averages 45 inches of rain a year
Snow: averages 27 inches of snow a year

Bestplaces Comfort Index

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

8.9 Summer - 5.5 Winter

September, June and August are the most pleasant months in West Islip, while January and February are the least comfortable months.

Climate	West Islip, New York	United States
	45.0 in.	38.1 in.
	27.2 in.	27.8 in.
	113.2 days	106.2 days
	208 days	205 days
	82.2°	85.8°
	24.3°	21.7°
	7.2	7
	3.7	4.3
	20 ft.	2443 ft.

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 West Islip with an average high temperature of 82.2°, which ranks it as warmer than most places in New York. In West Islip, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for West Islip are June, August and September.

In West Islip, there are 6.2 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 West Islip with an average of 24.3°. This is warmer than most places in New York.

In West Islip, there are 89.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New York.

In West Islip, there are 0.1 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 West 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 West Islip with 4.3 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 45.0 inches in West Islip means that it is about average compared to other places in New York.

April is the rainiest month in West Islip with 10.9 days of rain, and August is the driest month with only 8.0 rainy days. There are 113.2 rainy days annually in West Islip, which is less rainy than most 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 27.2 inches in West Islip means that it is less snowy than most places in New York. February is the snowiest month in West Islip with 8.0 inches of snow, and 6 months of the year have significant snowfall.