May weather forecast
Prospect Harbor, ME

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Weather in May

The last month of the spring, May, is a refreshing month in Prospect Harbor, Maine, with an average temperature varying between 58.6°F (14.8°C) and 44.2°F (6.8°C).

Temperature

May's arrival coincides with a rise in the average high-temperature, moving from April's frosty 48.6°F (9.2°C) to a refreshing 58.6°F (14.8°C). May witnesses an average low-temperature hovering around a frosty 44.2°F (6.8°C).

Humidity

The average relative humidity in May is 78%.

Rainfall

In Prospect Harbor, Maine, in May, it is raining for 14.8 days, with typically 2.28" (58mm) of accumulated precipitation. In Prospect Harbor, during the entire year, the rain falls for 142.1 days and collects up to 32.28" (820mm) of precipitation.

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, Prospect Harbor aggregates 0.08" (2mm) of snow. In Prospect Harbor, during the entire year, snow falls for 48.1 days and aggregates up to 23.82" (605mm) of snow.

Daylight

In May, the average length of the day is 14h and 49min.
On the first day of the month, sunrise is at 5:21 am and sunset at 7:36 pm. On the last day of May, in Prospect Harbor, sunrise is at 4:50 am and sunset at 8:09 pm EDT.

Sunshine

In Prospect Harbor, Maine, the average sunshine in May is 7.8h.

UV index

The average daily maximum UV index in May in Prospect Harbor is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What are May temperatures in Prospect Harbor?

The high-temperature in Prospect Harbor, Maine, during May is 58.6°F (14.8°C) and the low-temperature is 44.2°F (6.8°C).

What is the average humidity in May in Prospect Harbor?

In Prospect Harbor, the average relative humidity in May is 78%.

How much does it rain in Prospect Harbor in May?

In Prospect Harbor, in May, it is raining for 14.8 days, with typically 2.28" (58mm) of accumulated precipitation.

What is the last month it snows in Prospect Harbor?

May is the last month it regularly snows in Prospect Harbor. During 0.1 snowfall days, in May, Prospect Harbor aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in Prospect Harbor?

In May, the average day length is 14h and 49min.

When are sunrise and sunset in May in Prospect Harbor?

In May, on the first day of the month, sunrise is at 5:21 am and sunset at 7:36 pm. On the last day of the month, in Prospect Harbor, sunrise is at 4:50 am and sunset at 8:09 pm EDT.

How many hours of sunshine does Prospect Harbor have in May?

In Prospect Harbor, the average sunshine duration in May is 7.8h.

How high is the UV index in May in Prospect Harbor?

In Prospect Harbor, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Prospect Harbor, ME

Average temperature in May - Prospect Harbor, ME
  • Average high temperature in May: 58.6°F

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in May
Prospect Harbor, ME

Average pressure in May - Prospect Harbor, 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
Prospect Harbor, ME

Average wind speed in May - Prospect Harbor, ME
  • Average wind speed in May: 7.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in May
Prospect Harbor, ME

Average humidity in May - Prospect Harbor, ME
  • Average humidity in May: 78%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in May
Prospect Harbor, ME

Average rainfall in May - Prospect Harbor, ME
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").

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Average rainfall days in May
Prospect Harbor, ME

Average rainfall days in May - Prospect Harbor, ME
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in May
Prospect Harbor, ME

Average snowfall in May - Prospect Harbor, ME
  • Average snowfall in May: 0.08"

The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Prospect Harbor, ME

Average snowfall days in May - Prospect Harbor, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (11.8 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
Prospect Harbor, ME

Average daylight in May / Average sunshine in May - Prospect Harbor, 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: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

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Average sunshine days in May
Prospect Harbor, ME

Average sunshine days in May - Prospect Harbor, ME
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).

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Average UV index in May
Prospect Harbor, ME

Average UV index in May - Prospect Harbor, 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
Prospect Harbor, ME

Average cloud cover in May - Prospect Harbor, 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 35).

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Average visibility in May
Prospect Harbor, ME

Average visibility in May - Prospect Harbor, ME
  • Average visibility in May: 6mi

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

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Prospect Harbor, Maine, USA

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