May weather forecast
South Plymouth, NY

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Weather in May

The last month of the spring, May, is a comfortable month in South Plymouth, New York, with an average temperature ranging between min 44.8°F (7.1°C) and max 65.5°F (18.6°C).

Temperature

May brings a rise in the average high-temperature, transitioning from April's fresh 51.8°F (11°C) to an enjoyable 65.5°F (18.6°C). The low-temperature in South Plymouth, New York, averages to a frosty 44.8°F (7.1°C) during the nights of May.

Humidity

The months with the lowest humidity in South Plymouth are April, May and July, with an average relative humidity of 80%.

Rainfall

The wettest months are May and June, with an average 2.44" (62mm) of rainfall.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, South Plymouth aggregates 0.12" (3mm) of snow. Throughout the year, there are 70.5 snowfall days, and 26.26" (667mm) of snow is accumulated.

Daylight

In South Plymouth, the average length of the day in May is 14h and 38min.
On the first day of May, sunrise is at 5:55 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:32 pm EDT.

Sunshine

In May, the average sunshine is 8h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 5 translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

What are May temperatures?

In May, the average high-temperature and low-temperature are 65.5°F (18.6°C) and 44.8°F (7.1°C) respectively.

What are the least humid months?

April, May and July, with an average relative humidity of 80%, are the least humid months.

What is the average humidity in May?

In South Plymouth, the average relative humidity in May is 80%.

What is the rainiest month in South Plymouth?

The wettest months are May and June, with an average 2.44" (62mm) of rainfall.

How much does it rain in May?

In May, the rain falls for 16.7 days. Throughout May, 2.44" (62mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.7 snowfall days, in May, South Plymouth aggregates 0.12" (3mm) of snow.

How many hours of daylight does South Plymouth have in May?

The average day length in May is 14h and 38min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:32 pm EDT.

How many hours of sunshine does South Plymouth have in May?

The average sunshine duration in May is 8h.

When is the highest UV index?

The months with the highest UV index in South Plymouth are May through August, with an average maximum UV index of 5.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
South Plymouth, NY

Average temperature in May - South Plymouth, NY
  • Average high temperature in May: 65.5°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 44.8°F

The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in May
South Plymouth, NY

Average pressure in May - South Plymouth, NY
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
South Plymouth, NY

Average wind speed in May - South Plymouth, NY
  • Average wind speed in May: 7.7mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in May
South Plymouth, NY

Average humidity in May - South Plymouth, NY
  • Average humidity in May: 80%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May and July (80%).

Average rainfall in May
South Plymouth, NY

Average rainfall in May - South Plymouth, NY
  • Average rainfall in May: 2.44"

The wettest months (with the highest rainfall) are May and June (2.44").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in May
South Plymouth, NY

Average rainfall days in May - South Plymouth, NY
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in May
South Plymouth, NY

Average snowfall in May - South Plymouth, NY
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
South Plymouth, NY

Average snowfall days in May - South Plymouth, NY
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
South Plymouth, NY

Average daylight in May / Average sunshine in May - South Plymouth, NY
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

Average sunshine days in May
South Plymouth, NY

Average sunshine days in May - South Plymouth, NY
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in May
South Plymouth, NY

Average UV index in May - South Plymouth, NY
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
South Plymouth, NY

Average cloud cover in May - South Plymouth, NY
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in May
South Plymouth, NY

Average visibility in May - South Plymouth, NY
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

South Plymouth, New York, USA

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