May weather forecastMattituck, NY
May
Weather in May
The last month of the spring, May, is a moderate month in Mattituck, New York, with an average temperature fluctuating between 53.4°F (11.9°C) and 58.6°F (14.8°C).Temperature
As May begins, there's a slight increase in the average high-temperature, moving from a cool 50.4°F (10.2°C) in April to a mild 58.6°F (14.8°C). Throughout May, Mattituck observes a steady low-temperature average of 53.4°F (11.9°C), reflecting a minor dip from daytime highs.Humidity
The months with the highest humidity are May and June, with an average relative humidity of 81%.Rainfall
In Mattituck, New York, during May, the rain falls for 16 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, in Mattituck, there are 156.9 rainfall days, and 35.55" (903mm) of precipitation is accumulated.Snowfall
January through March, May and December are months with snowfall in Mattituck. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Mattituck, during the entire year, snow falls for 15.4 days and aggregates up to 5.43" (138mm) of snow.Daylight
In May, the average length of the day is 14h and 29min.On the first day of the month, sunrise is at 5:47 am and sunset at 7:47 pm. On the last day of May, in Mattituck, sunrise is at 5:20 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in May in Mattituck is 8.8h.UV index
In Mattituck, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mattituck, NY
- Average high temperature in May: 58.6°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in May: 53.4°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in May
Mattituck, 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
Mattituck, NY
- Average wind speed in May: 11.9mph
The windiest month (with the highest average wind speed) is January (15.9mph).
The calmest month (with the lowest average wind speed) is July (10.5mph).
Average humidity in May
Mattituck, 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
Mattituck, NY
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in May
Mattituck, NY
- Average rainfall days in May: 16 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in May
Mattituck, NY
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (1.69").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in May
Mattituck, NY
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.2 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
Mattituck, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in May
Mattituck, NY
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in May
Mattituck, 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
Mattituck, NY
- Average cloud cover in May: 42
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Mattituck, 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).
