Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The onset of May marks an increase in the average high-temperature, moving from a cool 54°F (12.2°C) in April to an enjoyable 66.6°F (19.2°C). Swan Lake, during the month of May, experiences an average low-temperature of 46.6°F (8.1°C).Humidity
In May, the average relative humidity is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 2.8" (71mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Swan Lake aggregates 0.35" (9mm) of snow. Throughout the year, there are 42.6 snowfall days, and 20.98" (533mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 34min.On the first day of the month, sunrise is at 5:54 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:26 am and sunset at 8:27 pm EDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May in Swan Lake?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Swan Lake have in May?
What are the months with the highest UV index?
How high is the UV index in May in Swan Lake?
Average temperature in May
Swan Lake, NY
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Swan Lake, NY
- Average pressure in May: 30.01"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
Swan Lake, NY
- Average wind speed in May: 6mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Swan Lake, NY
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in May
Swan Lake, NY
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and February (1.65").
Average rainfall days in May
Swan Lake, NY
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in May
Swan Lake, NY
- Average snowfall in May: 0.35"
The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Swan Lake, NY
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Swan Lake, NY
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in May
Swan Lake, NY
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in May
Swan Lake, 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, March, October, November and December (UV index 2).
Average cloud cover in May
Swan Lake, NY
- Average cloud cover in May: 51
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in May
Swan Lake, NY
- Average visibility in May: 4mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).
Swan Lake, New York, USA
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