May weather forecast
Clayton, NY

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Weather in May

May, the last month of the spring in Clayton, is a refreshing month, with an average temperature varying between 46.2°F (7.9°C) and 62.4°F (16.9°C).

Temperature

The onset of May brings a rise in the average high-temperature, elevating from a chilly 49.6°F (9.8°C) in April to a comfortable 62.4°F (16.9°C). Throughout the month of May, Clayton witnesses an average temperature of 46.2°F (7.9°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

In May, the rain falls for 16.3 days. Throughout May, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Clayton, New York, there are 156.9 rainfall days, and 24.06" (611mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Clayton. May is the last month it regularly snows. During 0.5 snowfall days, in May, Clayton aggregates 0.04" (1mm) of snow. Throughout the year, in Clayton, New York, there are 72.8 snowfall days, and 24.25" (616mm) of snow is accumulated.

Ocean temperature

In Clayton, the average seawater temperature in May is 42.1°F (5.6°C).
Note: Diving into 42.1°F (5.6°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

In May, the average length of the day in Clayton is 14h and 48min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:23 am and sunset at 8:40 pm EDT.

Sunshine

In May, the average sunshine in Clayton is 8.9h.

UV index

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 4 in May translates into this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Clayton in May?

The high-temperature during May is 62.4°F (16.9°C) and the low-temperature is 46.2°F (7.9°C).

What is the average humidity in May in Clayton?

In May, the average relative humidity in Clayton is 79%.

How much does it rain in Clayton in May?

In Clayton, New York, in May, during 16.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

What is the last month it snows in Clayton?

May is the last month it regularly snows in Clayton. During 0.5 snowfall days, in May, Clayton aggregates 0.04" (1mm) of snow.

How cold is the water in May in Clayton?

In Clayton, in May, the average water temperature is 42.1°F (5.6°C). Swimming in 42.1°F (5.6°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in May in Clayton?

In May, the average day length is 14h and 48min.

When is the sunrise / sunset in May in Clayton?

On the first day of May, sunrise is at 5:54 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:40 pm EDT.

How long on average sun shines in May in Clayton?

The average sunshine duration in May in Clayton, New York, is 8.9h.

What is the UV index reading in May in Clayton?

The average daily maximum UV index in May in Clayton is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Clayton, NY

Average temperature in May - Clayton, NY
  • Average high temperature in May: 62.4°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25.7°F).

  • Average low temperature in May: 46.2°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average pressure in May
Clayton, NY

Average pressure in May - Clayton, NY
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Clayton, NY

Average wind speed in May - Clayton, NY
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in May
Clayton, NY

Average humidity in May - Clayton, NY
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).

Average rainfall in May
Clayton, NY

Average rainfall in May - Clayton, NY
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in May
Clayton, NY

Average rainfall days in May - Clayton, NY
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is October (17.1 days).
The month with the least rainy days is February (7.1 days).

Average snowfall in May
Clayton, NY

Average snowfall in May - Clayton, NY
  • Average snowfall in May: 0.04"

The month with the highest snowfall is December (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Clayton, NY

Average snowfall days in May - Clayton, NY
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in May
Clayton, NY

Average sea temperature in May - Clayton, NY
  • Average sea temperature in May: 42.1°F

The best month for swimming (with the highest average sea temperature) is August (70.1°F).
The coldest month (with the lowest average sea temperature) is March (35.5°F).

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

Average daylight in May / Average sunshine in May - Clayton, NY
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).

Average sunshine days in May
Clayton, NY

Average sunshine days in May - Clayton, NY
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is January (7.9 days).

Average UV index in May
Clayton, NY

Average UV index in May - Clayton, NY
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Clayton, NY

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

The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in May
Clayton, NY

Average visibility in May - Clayton, NY
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

Clayton, New York, USA

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