May weather forecast
Wells, ME

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Weather in May

May brings in more sun, contributing to warmer days in Wells. A substantial rise in temperature and daylight hours makes most days in May ideally suitable for outdoor events. The month also displays a heightened occurrence of rainfall, with the measure scaling up to 1.61" (41mm). This sudden influx of rainfall marks the transition from a dry winter to a reasonably moist early summer rendering Wells a vision in varying hues of green. The increased available daylight makes strolls along the coastline an invigorating experience, complemented by the mesmerizing sunset.

Temperature

The arrival of May brings an increase in high-temperatures, moving from a fresh 50.5°F (10.3°C) in April to a refreshing 61.2°F (16.2°C). During May, the nighttime temperature averages of 46.8°F (8.2°C).

Humidity

In Wells, the average relative humidity in May is 79%.

Rainfall

In Wells, during May, the rain falls for 13.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 127.9 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Wells aggregates 0.12" (3mm) of snow. In Wells, Maine, during the entire year, snow falls for 29.4 days and aggregates up to 8.78" (223mm) of snow.

Daylight

The average length of the day in May is 14h and 43min.
On the first day of the month, sunrise is at 5:34 am and sunset at 7:44 pm. On the last day of May, sunrise is at 5:04 am and sunset at 8:15 pm EDT.

Sunshine

In Wells, the average sunshine in May is 8.4h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

May temperatures vary between a high-temperature of 61.2°F (16.2°C) and a low-temperature of 46.8°F (8.2°C).

What is the average humidity in May?

In Wells, the average relative humidity in May is 79%.

How many days does it rain in May?

In May, the rain falls for 13.7 days. Throughout May, 1.61" (41mm) of precipitation is accumulated.

What is the last month it snows?

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

What is the average length of the day in May?

In Wells, the average day length in May is 14h and 43min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:34 am and sunset at 7:44 pm. On the last day of the month, in Wells, Maine, sunrise is at 5:04 am and sunset at 8:15 pm EDT.

How long on average sun shines in May?

In Wells, the average sunshine duration in May is 8.4h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Wells, ME

Average temperature in May - Wells, ME
  • Average high temperature in May: 61.2°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 46.8°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in May
Wells, ME

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

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Wells, ME

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

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in May
Wells, ME

Average humidity in May - Wells, ME
  • Average humidity in May: 79%

The months with the highest relative humidity are January, June and July (81%).
The months with the lowest relative humidity are April and November (76%).

Average rainfall in May
Wells, ME

Average rainfall in May - Wells, ME
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is September (1.06").

Average rainfall days in May
Wells, ME

Average rainfall days in May - Wells, ME
  • Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in May
Wells, ME

Average snowfall in May - Wells, ME
  • Average snowfall in May: 0.12"

The month with the highest snowfall is January (2.44").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Wells, ME

Average snowfall days in May - Wells, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Wells, ME
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in May
Wells, ME

Average sunshine days in May - Wells, ME
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is April (14.3 days).

Average UV index in May
Wells, ME

Average UV index in May - Wells, ME
  • Average UV index in May: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Wells, ME

Average cloud cover in May - Wells, ME
  • Average cloud cover in May: 45

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Wells, ME

Average visibility in May - Wells, ME
  • Average visibility in May: 6mi

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

Wells, Maine, USA

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