May weather forecastGreenport, NY
May
Weather in May
The last month of the spring, May, is a moderate month in Greenport, New York, with an average temperature ranging between min 52.7°F (11.5°C) and max 58.6°F (14.8°C).Temperature
May's arrival brings a modest temperature shift, moving from a cool 50°F (10°C) in April to a moderate 58.6°F (14.8°C). Nighttime temperatures during May report a consistent average of 52.7°F (11.5°C).Humidity
May and June, with an average relative humidity of 81%, are the most humid months.Rainfall
In Greenport, New York, during May, the rain falls for 15.3 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Greenport, New York, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.Snowfall
April through October are months without snowfall.Ocean temperature
In Greenport, the average seawater temperature in May is 51.8°F (11°C).Note: Immersing oneself in 51.8°F (11°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In May, the average length of the day is 14h and 30min.On the first day of May in Greenport, sunrise is at 5:46 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:15 pm EDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In Greenport, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenport, NY
- Average high temperature in May: 58.6°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in May
Greenport, NY
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Greenport, NY
- Average wind speed in May: 12mph
The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).
Average humidity in May
Greenport, NY
- Average humidity in May: 81%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in May
Greenport, NY
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in May
Greenport, NY
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Greenport, NY
- Average snowfall in May: 0"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Greenport, NY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Greenport, NY
- Average sea temperature in May: 51.9°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in May /
Average sunshine in May
Greenport, NY
- Average daylight in May: 14h and 30min
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 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in May
Greenport, NY
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in May
Greenport, 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
Greenport, NY
- Average cloud cover in May: 43
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Greenport, 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).
