May weather forecast
Locust Valley, NY

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Weather in May

The last month of the spring, May, is a comfortable month in Locust Valley, New York, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 65.3°F (18.5°C).

Temperature

May brings a temperature change, with average high-temperatures moving from April's cool 55°F (12.8°C) to a comfortable 65.3°F (18.5°C). In May, the average low-temperature records at a fresh 54.1°F (12.3°C) during the nights.

Humidity

The months with the highest humidity in Locust Valley are February, May and December, with an average relative humidity of 75%.

Rainfall

In Locust Valley, New York, in May, during 17.2 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Locust Valley, New York, during the entire year, the rain falls for 165.9 days and collects up to 37.56" (954mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 29min.
On the first day of May, sunrise is at 5:51 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:19 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in May in Locust Valley is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 5 in May transforms into this advice:
Take precautions - Protection against sunburn is recommended. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the average May temperature in Locust Valley?

In May, in Locust Valley, the average high-temperature is 65.3°F (18.5°C), and the average low-temperature is 54.1°F (12.3°C).

What are the most humid months in Locust Valley?

February, May and December, with an average relative humidity of 75%, are most humid months.

What is the average humidity in May in Locust Valley?

In Locust Valley, the average relative humidity in May is 75%.

How many days does it rain in May in Locust Valley?

In Locust Valley, during May, the rain falls for 17.2 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Locust Valley?

May through October are months without snowfall in Locust Valley.

Does it snow in Locust Valley in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Locust Valley?

The average day length in May in Locust Valley is 14h and 29min.

When are sunrise and sunset in May in Locust Valley?

On the first day of May, sunrise is at 5:51 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:19 pm EDT.

How long on average sun shines in May in Locust Valley?

The average sunshine duration in May in Locust Valley, New York, is 8.8h.

What is the UV index reading in May in Locust Valley?

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

Average temperature in May
Locust Valley, NY

Average temperature in May - Locust Valley, NY
  • Average high temperature in May: 65.3°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in May: 54.1°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in May
Locust Valley, NY

Average pressure in May - Locust Valley, NY
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Locust Valley, NY

Average wind speed in May - Locust Valley, NY
  • Average wind speed in May: 8.3mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in May
Locust Valley, NY

Average humidity in May - Locust Valley, NY
  • Average humidity in May: 75%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

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Average rainfall in May
Locust Valley, NY

Average rainfall in May - Locust Valley, NY
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in May
Locust Valley, NY

Average rainfall days in May - Locust Valley, NY
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in May
Locust Valley, NY

Average snowfall in May - Locust Valley, NY
  • Average snowfall in May: 0"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Locust Valley, NY

Average snowfall days in May - Locust Valley, NY
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Locust Valley, NY

Average daylight in May / Average sunshine in May - Locust Valley, NY
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in May
Locust Valley, NY

Average sunshine days in May - Locust Valley, NY
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in May
Locust Valley, NY

Average UV index in May - Locust Valley, NY
  • Average UV index in May: 5

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

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Average cloud cover in May
Locust Valley, NY

Average cloud cover in May - Locust Valley, NY
  • Average cloud cover in May: 43

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in May
Locust Valley, NY

Average visibility in May - Locust Valley, NY
  • Average visibility in May: 6mi

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

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Locust Valley, New York, USA

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