May weather forecast
East Moriches, NY

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Weather in May

The last month of the spring, May, is a moderate month in East Moriches, New York, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 54.1°F (12.3°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a fresh 51.4°F (10.8°C) in April to a moderate 60.4°F (15.8°C). East Moriches's May nights exhibit a subtle drop in temperature, averaging at a cool 54.1°F (12.3°C), closely aligned with the daytime highs.

Humidity

May is the most humid month, with an average relative humidity of 80%.

Rainfall

In East Moriches, during May, the rain falls for 15 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, in East Moriches, New York, there are 156.2 rainfall days, and 30.2" (767mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Ocean temperature

In East Moriches, the average seawater temperature in May is 52.9°F (11.6°C).
Note: Swimming in 52.9°F (11.6°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.

Daylight

The average length of the day in May in East Moriches is 14h and 29min.
On the first day of the month, sunrise is at 5:48 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:21 am and sunset at 8:15 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

In East Moriches, New York, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the usual temperature for East Moriches in May?

In East Moriches, 60.4°F (15.8°C) is the average high-temperature and 54.1°F (12.3°C) is the average low-temperature during May.

What is the most humid month in East Moriches?

The most humid month in East Moriches, New York, is May, with an average relative humidity of 80%.

What is the average humidity in May in East Moriches?

In East Moriches, New York, the average relative humidity in May is 80%.

How much does it rain in East Moriches in May?

In East Moriches, New York, during May, the rain falls for 15 days and regularly aggregates up to 2.4" (61mm) of precipitation.

When it does not snow in East Moriches?

May through October are months without snowfall in East Moriches.

Does it snow in East Moriches in May?

In May, in East Moriches, New York, it doesn't snow. April is the latest month when it typically snows.

How cold is the water in May in East Moriches?

In East Moriches, New York, in May, the average water temperature is 52.9°F (11.6°C). Swimming in 52.9°F (11.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does East Moriches have in May?

In East Moriches, New York, the average day length in May is 14h and 29min.

When is the sunrise / sunset in May in East Moriches?

In May, on the first day of the month, sunrise is at 5:48 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:15 pm EDT.

How long on average sun shines in May in East Moriches?

In East Moriches, the average sunshine duration in May is 8.9h.

What is the UV index reading in May in East Moriches?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
East Moriches, NY

Average temperature in May - East Moriches, NY
  • Average high temperature in May: 60.4°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in May: 54.1°F

The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in May
East Moriches, NY

Average pressure in May - East Moriches, NY
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
East Moriches, NY

Average wind speed in May - East Moriches, NY
  • Average wind speed in May: 10.7mph

The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).

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Average humidity in May
East Moriches, NY

Average humidity in May - East Moriches, NY
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in May
East Moriches, NY

Average rainfall in May - East Moriches, NY
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").

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Average rainfall days in May
East Moriches, NY

Average rainfall days in May - East Moriches, NY
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).

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Average snowfall in May
East Moriches, NY

Average snowfall in May - East Moriches, NY
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
East Moriches, NY

Average snowfall days in May - East Moriches, NY
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in May
East Moriches, NY

Average sea temperature in May - East Moriches, NY
  • Average sea temperature in May: 52.8°F

The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (38°F).

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Average daylight in May /
Average sunshine in May
East Moriches, NY

Average daylight in May / Average sunshine in May - East Moriches, 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 months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in May
East Moriches, NY

Average sunshine days in May - East Moriches, NY
  • Average sunshine days in May: 14.2 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in May
East Moriches, NY

Average UV index in May - East Moriches, 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 and December (UV index 2).

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Average cloud cover in May
East Moriches, NY

Average cloud cover in May - East Moriches, NY
  • Average cloud cover in May: 41

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in May
East Moriches, NY

Average visibility in May - East Moriches, 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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East Moriches, New York, USA

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