May weather forecast
South Casco, ME

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Weather in May

The last month of the spring, May, is a comfortable month in South Casco, Maine, with an average temperature varying between 44.6°F (7°C) and 62.8°F (17.1°C).

Temperature

With the arrival of May, the average high-temperature transitions from a fresh 50.9°F (10.5°C) in April to a refreshing 62.8°F (17.1°C). The low-temperature average for South Casco during May stands at a chilly 44.6°F (7°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In South Casco, in May, it is raining for 13.1 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, in South Casco, Maine, there are 121.1 rainfall days, and 16.3" (414mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows in South Casco. During 0.1 snowfall days, in May, South Casco aggregates 0.12" (3mm) of snow. In South Casco, during the entire year, snow falls for 31.3 days and aggregates up to 12.76" (324mm) of snow.

Daylight

In South Casco, the average length of the day in May is 14h and 46min.
On the first day of the month, sunrise is at 5:32 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:02 am and sunset at 8:17 pm EDT.

Sunshine

The average sunshine in May in South Casco is 8h.

UV index

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, an average UV index of 4 transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What are the temperatures in South Casco in May?

The average high-temperature, in May, in South Casco, is 62.8°F (17.1°C), while the average low-temperature is 44.6°F (7°C).

What is the average humidity in May in South Casco?

In South Casco, Maine, the average relative humidity in May is 79%.

How much does it rain in South Casco in May?

In South Casco, Maine, in May, it is raining for 13.1 days, with typically 1.38" (35mm) of accumulated precipitation.

What is the last month it snows in South Casco?

May is the last month it regularly snows. During 0.1 snowfall days, in May, South Casco aggregates 0.12" (3mm) of snow.

What is the average length of the day in May in South Casco?

In South Casco, Maine, the average day length in May is 14h and 46min.

What time are sunrise and sunset in May in South Casco?

On the first day of May in South Casco, Maine, sunrise is at 5:32 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:02 am and sunset at 8:17 pm EDT.

How many hours of sunshine does South Casco have in May?

The average sunshine duration in May in South Casco is 8h.

How high is the UV index in May in South Casco?

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

Average temperature in May - South Casco, ME
  • Average high temperature in May: 62.8°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in May: 44.6°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in May
South Casco, ME

Average pressure in May - South Casco, ME
  • Average pressure in May: 29.99"Hg

The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
South Casco, ME

Average wind speed in May - South Casco, ME
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in May
South Casco, ME

Average humidity in May - South Casco, ME
  • Average humidity in May: 79%

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

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Average rainfall in May
South Casco, ME

Average rainfall in May - South Casco, ME
  • Average rainfall in May: 1.38"

The wettest months (with the highest rainfall) are June and October (1.77").
The driest month (with the least rainfall) is September (0.87").

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Average rainfall days in May
South Casco, ME

Average rainfall days in May - South Casco, ME
  • Average rainfall days in May: 13.1 days

The months with the highest number of rainy days are June and July (14.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in May
South Casco, ME

Average snowfall in May - South Casco, ME
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
South Casco, ME

Average snowfall days in May - South Casco, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
South Casco, ME

Average daylight in May / Average sunshine in May - South Casco, ME
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in May
South Casco, ME

Average sunshine days in May - South Casco, ME
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is July (13.6 days).

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Average UV index in May
South Casco, ME

Average UV index in May - South Casco, 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, October, November and December (UV index 2).

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Average cloud cover in May
South Casco, ME

Average cloud cover in May - South Casco, ME
  • Average cloud cover in May: 48

The months with the most cloud cover are February and March (Cloud cover 50).
The months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in May
South Casco, ME

Average visibility in May - South Casco, ME
  • Average visibility in May: 5mi

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

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South Casco, Maine, USA

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