May weather forecast and climate
Middle Island, NY

The last month of the spring, May, is an enjoyable month in Middle Island, New York, with average temperature ranging between min 53.6°F (12°C) and max 61.5°F (16.4°C).

Temperature

In May, the average high-temperature rises, from a fresh 52.3°F (11.3°C) in April, to an enjoyable 61.5°F (16.4°C). In May, the average low-temperature is 53.6°F (12°C).

Humidity

May and June, with an average relative humidity of 78%, are most humid months in Middle Island.

Rainfall

In Middle Island, it is raining for 15.8 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Middle Island, there are 153 rainfall days, and 35.04" (890mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, May and December. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 14.9 snowfall days, and 5.71" (145mm) of snow is accumulated.

Daylight

In May, the average length of the day in Middle Island is 14.5h.

Sunshine

The average sunshine in May is 8.7h.

UV index

In Middle Island, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Middle Island?

The average high-temperature, in May, is 61.5°F (16.4°C), while the average low-temperature is 53.6°F (12°C).

What is the most humid month in Middle Island?

Months with the highest humidity in Middle Island, New York, are May and June, with an average relative humidity of 78%.

What is the average humidity in May in Middle Island?

In May, the average relative humidity is 78%.

How many days does it rain in May in Middle Island?

In Middle Island, during May, the rain falls for 15.8 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When does it start to snow in Middle Island?

May is the first month it typically snows in Middle Island, New York. Throughout May, in the average 0.1 snowfall days, it receives 0.2" (5mm) of snow.

What is the average length of the day in May in Middle Island?

The average length of the day in May is 14.5h.

How many hours of sunshine does Middle Island have in May?

The average sunshine in May in Middle Island is 8.7h.

How high is the UV index in May in Middle Island?

The average daily maximum UV index in May in Middle Island, New York, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
Average temperature in May - Middle Island, NY
  • Average high temperature in May: 16.4°C

The warmest months (with the highest average high temperature) are July and August (25.7°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in May: 12°C

Months with the highest average low temperature are July and August (21.6°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).

Average pressure in May - Middle Island, NY
  • Average pressure in May: 1016.3mbar

The month with the highest atmospheric pressure is November (1018.9mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in May - Middle Island, NY
  • Average wind speed in May: 15.9km/h

The windiest month (with the highest average wind speed) is January (21.8km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).

Average humidity in May - Middle Island, NY
  • Average humidity in May: 78%

Months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in May - Middle Island, NY
  • Average rainfall in May: 73mm

The wettest month (with the highest rainfall) is December (97mm).
The driest month (with the least rainfall) is January (57mm).

Average rainfall days in May - Middle Island, NY
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (8 days).

Average snowfall in May - Middle Island, NY
  • Average snowfall in May: 5mm

The month with the highest snowfall is March (55mm).
Months with the least snowfall are April, June, July, August, September, October and November (0mm).

Average snowfall days in May - Middle Island, NY
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (4.6 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Middle Island, NY
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.7h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in May - Middle Island, NY
  • Average sunshine days in May: 13.9 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (12.5 days).

Average UV index in May - Middle Island, NY
  • Average UV index in May: 5

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

Average cloud cover in May - Middle Island, NY
  • Average cloud cover in May: 43

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May - Middle Island, NY
  • Average visibility in May: 9km

Months with the highest visibility are June, July, August, September, October and November (10km).
Months with the lowest visibility are January, February, March, April, May and December (9km).