May weather forecastEtna, ME
May
Weather in May
May, the last month of the spring in Etna, is a refreshing month, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 42.8°F (6°C).Temperature
The shift from April to May is marked by an increase in the average high-temperature, moving from a frosty 49.8°F (9.9°C) to a comfortable 62.4°F (16.9°C). Etna in May anticipates an average nighttime temperature of 42.8°F (6°C).Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 77%.Rainfall
In Etna, in May, during 14.2 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 130.5 rainfall days, and 18.7" (475mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Etna aggregates 0.31" (8mm) of snow. Throughout the year, there are 50.1 snowfall days, and 21.14" (537mm) of snow is accumulated.Daylight
In Etna, the average length of the day in May is 14h and 51min.On the first day of the month, sunrise is at 5:24 am and sunset at 7:42 pm. On the last day of May, sunrise is at 4:53 am and sunset at 8:14 pm EDT.
Sunshine
In May, the average sunshine is 7.9h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 during May leads to these advisories:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Etna, ME
- Average high temperature in May: 62.4°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in May: 42.8°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in May
Etna, ME
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Etna, ME
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Etna, ME
- Average humidity in May: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in May
Etna, ME
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is April (2.05").
The driest month (with the least rainfall) is July (1.1").
Average rainfall days in May
Etna, ME
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in May
Etna, ME
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Etna, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Etna, ME
- Average daylight in May: 14h and 54min
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: 7h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in May
Etna, ME
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is April (12.1 days).
Average UV index in May
Etna, ME
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Etna, ME
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in May
Etna, ME
- Average visibility in May: 5mi
The months with the highest visibility are October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (5mi).
