May weather forecast
North Islesboro, ME

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Weather in May

May, the last month of the spring in North Islesboro, is a refreshing month, with temperature in the range of an average high of 59.7°F (15.4°C) and an average low of 43.9°F (6.6°C).

Temperature

As North Islesboro transitions into May, the average high-temperature is observed to rise from a frosty 48.9°F (9.4°C) in April to a refreshing 59.7°F (15.4°C). North Islesboro, in May, experiences an average temperature of 43.9°F (6.6°C) at night.

Humidity

In May, the average relative humidity in North Islesboro is 80%.

Rainfall

In North Islesboro, in May, it is raining for 15.3 days, with typically 2.05" (52mm) of accumulated precipitation. In North Islesboro, Maine, during the entire year, the rain falls for 141.1 days and collects up to 24.29" (617mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in North Islesboro, Maine. During 0.1 snowfall days, in May, North Islesboro aggregates 0.35" (9mm) of snow. Throughout the year, in North Islesboro, there are 44.3 snowfall days, and 16.81" (427mm) of snow is accumulated.

Daylight

In North Islesboro, the average length of the day in May is 14h and 48min.
On the first day of May in North Islesboro, Maine, sunrise is at 5:25 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 4:54 am and sunset at 8:12 pm EDT.

Sunshine

In May, the average sunshine in North Islesboro is 7.6h.

UV index

In North Islesboro, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 4 in May translates into this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the usual temperature for North Islesboro in May?

The high-temperature during May is 59.7°F (15.4°C) and the low-temperature is 43.9°F (6.6°C).

What is the average humidity in May in North Islesboro?

In North Islesboro, Maine, the average relative humidity in May is 80%.

How many days does it rain in May in North Islesboro?

In May, in North Islesboro, Maine, the rain falls for 15.3 days. Throughout May, 2.05" (52mm) of precipitation is accumulated.

What is the last month it snows in North Islesboro?

May is the last month it regularly snows in North Islesboro, Maine. During 0.1 snowfall days, in May, North Islesboro aggregates 0.35" (9mm) of snow.

What is the average length of the day in May in North Islesboro?

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

What time are sunrise and sunset in May in North Islesboro?

In May, on the first day of the month, sunrise is at 5:25 am and sunset at 7:40 pm. On the last day of the month, in North Islesboro, sunrise is at 4:54 am and sunset at 8:12 pm EDT.

How long on average sun shines in May in North Islesboro?

The average sunshine duration in May is 7.6h.

How high is the UV index in May in North Islesboro?

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe 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
North Islesboro, ME

Average temperature in May - North Islesboro, ME
  • Average high temperature in May: 59.7°F

The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in May: 43.9°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in May
North Islesboro, ME

Average pressure in May - North Islesboro, ME
  • Average pressure in May: 29.99"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
North Islesboro, ME

Average wind speed in May - North Islesboro, ME
  • Average wind speed in May: 7.6mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in May
North Islesboro, ME

Average humidity in May - North Islesboro, ME
  • Average humidity in May: 80%

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in May
North Islesboro, ME

Average rainfall in May - North Islesboro, ME
  • Average rainfall in May: 2.05"

The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").

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Average rainfall days in May
North Islesboro, ME

Average rainfall days in May - North Islesboro, ME
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in May
North Islesboro, ME

Average snowfall in May - North Islesboro, ME
  • Average snowfall in May: 0.35"

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
North Islesboro, ME

Average snowfall days in May - North Islesboro, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (10.1 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
North Islesboro, ME

Average daylight in May / Average sunshine in May - North Islesboro, 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 4min

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 18min).

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Average sunshine days in May
North Islesboro, ME

Average sunshine days in May - North Islesboro, ME
  • Average sunshine days in May: 13.7 days

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).

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Average UV index in May
North Islesboro, ME

Average UV index in May - North Islesboro, 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
North Islesboro, ME

Average cloud cover in May - North Islesboro, ME
  • Average cloud cover in May: 51

The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).

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Average visibility in May
North Islesboro, ME

Average visibility in May - North Islesboro, ME
  • Average visibility in May: 5mi

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

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North Islesboro, Maine, USA

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