May weather forecast
Melville, NY

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Weather in May

The last month of the spring, May, is an enjoyable month in Melville, New York, with an average temperature varying between 62.6°F (17°C) and 54.5°F (12.5°C).

Temperature

May's arrival coincides with a temperature rise, moving from April's fresh 53.2°F (11.8°C) to a refreshing 62.6°F (17°C). Consistently, Melville reports average nighttime temperatures of 54.5°F (12.5°C) during May, a marginal step down from its daytime highs.

Humidity

The most humid month is May, with an average relative humidity of 77%.

Rainfall

In May, the rain falls for 13.3 days. Throughout May, 1.14" (29mm) of precipitation is accumulated. In Melville, during the entire year, the rain falls for 128.1 days and collects up to 12.56" (319mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Melville aggregates 0.08" (2mm) of snow. Throughout the year, there are 12 snowfall days, and 1.26" (32mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of the month, sunrise is at 5:50 am and sunset at 7:50 pm. On the last day of May, sunrise is at 5:24 am and sunset at 8:18 pm EDT.

Sunshine

The average sunshine in May is 9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Boost your sun resistance with garments that are densely woven yet spacious. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

During May, Melville experiences an average high-temperature of 62.6°F (17°C) and a low-temperature of 54.5°F (12.5°C).

What is the most humid month?

The most humid month is May, with an average relative humidity of 77%.

What is the average humidity in May?

In May, the average relative humidity is 77%.

How many days does it rain in May?

In Melville, in May, it is raining for 13.3 days, with typically 1.14" (29mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Melville aggregates 0.08" (2mm) of snow.

How many hours of daylight does Melville have in May?

In Melville, New York, the average day length in May is 14h and 28min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:50 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:18 pm EDT.

How many hours of sunshine does Melville have in May?

In May, the average sunshine duration is 9h.

What is the UV index reading in May?

In Melville, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Melville, NY

Average temperature in May - Melville, NY
  • Average high temperature in May: 62.6°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in May
Melville, NY

Average pressure in May - Melville, 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).

Average wind speed in May
Melville, NY

Average wind speed in May - Melville, NY
  • Average wind speed in May: 9.8mph

The windiest month (with the highest average wind speed) is January (13.3mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

Average humidity in May
Melville, NY

Average humidity in May - Melville, NY
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).

Average rainfall in May
Melville, NY

Average rainfall in May - Melville, NY
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is February (0.59").

Average rainfall days in May
Melville, NY

Average rainfall days in May - Melville, NY
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in May
Melville, NY

Average snowfall in May - Melville, NY
  • Average snowfall in May: 0.08"

The month with the highest snowfall is March (0.35").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Melville, NY

Average snowfall days in May - Melville, NY
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Melville, 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in May
Melville, NY

Average sunshine days in May - Melville, NY
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (14 days).

Average UV index in May
Melville, NY

Average UV index in May - Melville, 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).

Average cloud cover in May
Melville, NY

Average cloud cover in May - Melville, NY
  • Average cloud cover in May: 42

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in May
Melville, NY

Average visibility in May - Melville, 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).

Melville, New York, USA

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