May weather forecast
East Sumner, ME

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Weather in May

The last month of the spring, May, is a refreshing month in East Sumner, Maine, with an average temperature varying between 63.1°F (17.3°C) and 44.1°F (6.7°C).

Temperature

The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a fresh 50°F (10°C) in April to a comfortable 63.1°F (17.3°C). East Sumner's temperature lowers to a mean of 44.1°F (6.7°C) during the nights in May.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In May, in East Sumner, the rain falls for 13.1 days. Throughout May, 1.54" (39mm) of precipitation is accumulated. In East Sumner, Maine, during the entire year, the rain falls for 119.4 days and collects up to 17.17" (436mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, East Sumner aggregates 0.24" (6mm) of snow. In East Sumner, during the entire year, snow falls for 39.3 days and aggregates up to 19.37" (492mm) 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 5:31 am and sunset at 7:46 pm. On the last day of May, sunrise is at 5:00 am and sunset at 8:18 pm EDT.

Sunshine

In East Sumner, the average sunshine in May is 8h.

UV index

The average daily maximum UV index in May in East Sumner is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In May, the maximum UV index of 4 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The high-temperature during May is 63.1°F (17.3°C) and the low-temperature is 44.1°F (6.7°C).

What is the average humidity in May?

In May, the average relative humidity is 78%.

How many days does it rain in May?

In East Sumner, Maine, in May, it is raining for 13.1 days, with typically 1.54" (39mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, East Sumner aggregates 0.24" (6mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 49min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:31 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:18 pm EDT.

How many hours of sunshine does East Sumner have in May?

The average sunshine duration in May is 8h.

What is the UV index intensity in May?

In East Sumner, the average daily maximum UV index in May is 4. A UV Index value 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
East Sumner, ME

Average temperature in May - East Sumner, ME
  • Average high temperature in May: 63.1°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 (26.6°F).

  • Average low temperature in May: 44.1°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 (13.3°F).

Average pressure in May
East Sumner, ME

Average pressure in May - East Sumner, ME
  • Average pressure in May: 29.99"Hg

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

Average wind speed in May
East Sumner, ME

Average wind speed in May - East Sumner, ME
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in May
East Sumner, ME

Average humidity in May - East Sumner, ME
  • Average humidity in May: 78%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is November (76%).

Average rainfall in May
East Sumner, ME

Average rainfall in May - East Sumner, ME
  • Average rainfall in May: 1.54"

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in May
East Sumner, ME

Average rainfall days in May - East Sumner, ME
  • Average rainfall days in May: 13.1 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in May
East Sumner, ME

Average snowfall in May - East Sumner, ME
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
East Sumner, ME

Average snowfall days in May - East Sumner, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
East Sumner, ME

Average daylight in May / Average sunshine in May - East Sumner, 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: 8h and 0min

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 36min).

Average sunshine days in May
East Sumner, ME

Average sunshine days in May - East Sumner, ME
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is July (13.8 days).

Average UV index in May
East Sumner, ME

Average UV index in May - East Sumner, 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).

Average cloud cover in May
East Sumner, ME

Average cloud cover in May - East Sumner, ME
  • Average cloud cover in May: 49

The months with the most cloud cover are March and April (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 35).

Average visibility in May
East Sumner, ME

Average visibility in May - East Sumner, ME
  • Average visibility in May: 5mi

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

East Sumner, Maine, USA

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