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What’s the climate like in Long Island?

The current climate of Long Island features average monthly temperatures ranging from highs of 26°C during the day to lows of 2°C. The average yearly temperature is around 14°C. At night, temperatures in the colder months average around -8°C and in the warmer months around 17°C.

The highest temperature recorded in Long Island in recent years was 36°C in August 2016. The lowest daytime temperature recorded was -16°C in January 2018.

On average, Long Island gets 1465 mm of precipitation each year. Of this, about 147 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.

Best time to visit Long Island?

The best time to visit Long Island for pleasant to warm weather is May through October. There might be some rain during this period, but the temperatures are just right for exploring Long Island.

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Climate Table of Long Island

The climate table of Long Island shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Temp. max (°C) 2 2 6 12 19 24 26 26 22 16 9 4
Temp. min (°C) -7 -7 -3 3 9 14 17 17 13 7 0 -4
Precipitation
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Precipitation (mm) 150 127 74 143 105 121 145 120 110 138 106 126
Snow (cm) 47 48 20 4,8 0,1 0 0 0 0 0 4,5 22
UV Index 2 3 4 5 6 7 7 6 5 3 3 2

Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.

  • Average yearly temperature: 14°C
  • Highest temperature: 26°C in July and August
  • Lowest temperature: 2°C in January and February
  • Precipitation*: 1465 mm per year, averaging 122 mm per month
  • Snowfall: 147 cm per year
  • Driest months: 74 mm in March, 105 mm in May and 106 mm in November
  • Wettest months: 150 mm in January, 145 mm in July and 143 mm in April

*Precipitation is measured as a combination of rain, snow, and hail

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Average Temperature per Month in Long Island

This graph shows the average maximum temperatures per month in Long Island, Maine. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.

Temperature per Month in Long Island, Maine,

Average Precipitation per Month in Long Island

This graph shows how much precipitation Long Island, Maine, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.

Precipitation per Month in Long Island, Maine,

Average Snowfall per Month in Long Island

This graph shows how much snow Long Island, Maine, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.

Snowfall per Month in Long Island, Maine,

Average UV Index per Month in Long Island

This graph shows the average UV index per month in Long Island, Maine. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.

UV Index per Month in Long Island, Maine,

Yearly Temperature in Long Island

This graph shows the average yearly temperature in Long Island, Maine. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.

Yearly Temperature in Long Island, Maine,

Total Yearly Precipitation in Long Island

This chart shows the total yearly precipitation in Long Island, Maine, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.

Yearly Precipitation in Long Island, Maine,

Total Yearly Snowfall in Long Island

This chart shows the total yearly snowfall in Long Island, Maine, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.

Yearly Snowfall in Long Island, Maine,

Weather experiences in Long Island

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Average Weather in Long Island by Month

Click on a month below to see detailed weather info for Long Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.

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