May weather forecast
Etna, ME

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Weather in May

The last month of the spring, May, is a refreshing month in Etna, Maine, with an average temperature fluctuating between 42.8°F (6°C) and 62.4°F (16.9°C).

Temperature

In Etna, the average high-temperature in May increases from a frosty 49.8°F (9.9°C) in April to a refreshing 62.4°F (16.9°C). In the month of May, the nighttime temperature in Etna dips to a steady average 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 May, the average length of the day in Etna 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

The average sunshine in May in Etna is 7.9h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 4 during May translates into the following directions:
Heed the precautions - It is counselled to guard against solar damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the usual temperature for Etna in May?

In May, in Etna, the average high-temperature is 62.4°F (16.9°C), and the average low-temperature is 42.8°F (6°C).

What are the least humid months in Etna?

The months with the lowest humidity in Etna, Maine, are April and May, with an average relative humidity of 77%.

What is the average humidity in May in Etna?

In Etna, Maine, the average relative humidity in May is 77%.

How many days does it rain in May in Etna?

In Etna, Maine, during May, the rain falls for 14.2 days and regularly aggregates up to 1.57" (40mm) of precipitation.

What is the last month it snows in Etna?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Etna aggregates 0.31" (8mm) of snow.

How many hours of daylight does Etna have in May?

The average day length in May in Etna is 14h and 51min.

When are sunrise and sunset in May in Etna?

On the first day of May in Etna, Maine, sunrise is at 5:24 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 4:53 am and sunset at 8:14 pm EDT.

How long on average sun shines in May in Etna?

In Etna, the average sunshine duration in May is 7.9h.

What is the UV index intensity in May in Etna?

In Etna, the average daily maximum UV index in May is 4. 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
Etna, ME

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).

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Average pressure in May
Etna, ME

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).

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Average wind speed in May
Etna, ME

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).

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Average humidity in May
Etna, ME

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%).

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Average rainfall in May
Etna, ME

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").

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Average rainfall days in May
Etna, ME

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).

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Average snowfall in May
Etna, ME

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").

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Average snowfall days in May
Etna, ME

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).

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Average daylight in May /
Average sunshine in May
Etna, ME

Average daylight in May / Average sunshine in May - Etna, ME
  • 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: 7h and 5min

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).

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Average sunshine days in May
Etna, ME

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).

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Average UV index in May
Etna, ME

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).

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Average cloud cover in May
Etna, ME

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).

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Average visibility in May
Etna, ME

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).

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Etna, Maine, USA

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