May weather forecast
Nassau, NY

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Weather in May

May, the last month of the spring in Nassau, is a refreshing month, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 67.6°F (19.8°C).

Temperature

May's onset is marked by a temperature increase, moving from a cool 54.1°F (12.3°C) in April to an enjoyable 67.6°F (19.8°C). During May, the average low-temperature in Nassau is a frosty 46.6°F (8.1°C).

Humidity

In May, the average relative humidity in Nassau is 76%.

Rainfall

In Nassau, New York, during May, the rain falls for 16.3 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, in Nassau, there are 151.6 rainfall days, and 28.78" (731mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Nassau aggregates 0.24" (6mm) of snow. In Nassau, New York, during the entire year, snow falls for 41.1 days and aggregates up to 18.9" (480mm) of snow.

Daylight

The average length of the day in May is 14h and 38min.
On the first day of May, sunrise is at 5:48 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:24 pm EDT.

Sunshine

In Nassau, New York, the average sunshine in May is 8.8h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Nassau, New York. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during May translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What are May temperatures in Nassau?

In Nassau, in May, the average high-temperature is 67.6°F (19.8°C), and the average low-temperature is 46.6°F (8.1°C).

What is the average humidity in May in Nassau?

In May, the average relative humidity is 76%.

How much does it rain in Nassau in May?

In Nassau, during May, the rain falls for 16.3 days and regularly aggregates up to 3.03" (77mm) of precipitation.

What is the last month it snows in Nassau?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Nassau aggregates 0.24" (6mm) of snow.

How many hours of daylight does Nassau have in May?

In Nassau, the average day length in May is 14h and 38min.

When is the sunrise / sunset in May in Nassau?

On the first day of May, sunrise is at 5:48 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:24 pm EDT.

How many hours of sunshine does Nassau have in May?

The average sunshine duration in May in Nassau is 8.8h.

What are the months with the highest UV index in Nassau?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

How high is the UV index in May in Nassau?

In Nassau, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Nassau, NY

Average temperature in May - Nassau, NY
  • Average high temperature in May: 67.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in May: 46.6°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in May
Nassau, NY

Average pressure in May - Nassau, NY
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Nassau, NY

Average wind speed in May - Nassau, NY
  • Average wind speed in May: 6.6mph

The windiest months (with the highest average wind speed) are January, February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in May
Nassau, NY

Average humidity in May - Nassau, NY
  • Average humidity in May: 76%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in May
Nassau, NY

Average rainfall in May - Nassau, NY
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in May
Nassau, NY

Average rainfall days in May - Nassau, NY
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in May
Nassau, NY

Average snowfall in May - Nassau, NY
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Nassau, NY

Average snowfall days in May - Nassau, NY
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Nassau, NY

Average daylight in May / Average sunshine in May - Nassau, NY
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

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Average sunshine days in May
Nassau, NY

Average sunshine days in May - Nassau, NY
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in May
Nassau, NY

Average UV index in May - Nassau, NY
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Nassau, NY

Average cloud cover in May - Nassau, NY
  • Average cloud cover in May: 45

The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in May
Nassau, NY

Average visibility in May - Nassau, NY
  • Average visibility in May: 5mi

The months with the highest visibility are April, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September and October (5mi).

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Nassau, New York, USA

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