May weather forecast
Andover, ME

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Weather in May

The last month of the spring, May, is an enjoyable month in Andover, Maine, with an average temperature fluctuating between 41.9°F (5.5°C) and 62.6°F (17°C).

Temperature

The arrival of May signals a clear increase in the average high-temperature, soaring from a chilly 47.7°F (8.7°C) in April to a comfortable 62.6°F (17°C). Throughout May, the nighttime temperature averages to an icy 41.9°F (5.5°C).

Humidity

May and November, with an average relative humidity of 76%, are the least humid months.

Rainfall

In Andover, Maine, in May, it is raining for 15.4 days, with typically 2.17" (55mm) of accumulated precipitation. In Andover, during the entire year, the rain falls for 146.3 days and collects up to 28.31" (719mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Andover aggregates 0.31" (8mm) of snow. Throughout the year, there are 69.3 snowfall days, and 48.15" (1223mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 50min.
On the first day of the month, sunrise is at 5:31 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:00 am and sunset at 8:20 pm EDT.

Sunshine

In May, the average sunshine is 7.7h.

UV index

In Andover, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 4 in May translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, in Andover, the average high-temperature is 62.6°F (17°C), and the average low-temperature is 41.9°F (5.5°C).

What are the least humid months?

The months with the lowest humidity in Andover are May and November, with an average relative humidity of 76%.

What is the average humidity in May?

In May, the average relative humidity is 76%.

How many days does it rain in May?

In Andover, during May, the rain falls for 15.4 days and regularly aggregates up to 2.17" (55mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.4 snowfall days, in May, Andover aggregates 0.31" (8mm) of snow.

What is the average length of the day in May?

In Andover, the average day length in May is 14h and 50min.

When is the sunrise / sunset in May in Andover?

On the first day of May, sunrise is at 5:31 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Andover have in May?

The average sunshine duration in May is 7.7h.

What is the UV index reading in May?

In Andover, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Andover, ME

Average temperature in May - Andover, ME
  • Average high temperature in May: 62.6°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).

  • Average low temperature in May: 41.9°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10°F).

Average pressure in May
Andover, ME

Average pressure in May - Andover, ME
  • Average pressure in May: 29.98"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
Andover, ME

Average wind speed in May - Andover, ME
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in May
Andover, ME

Average humidity in May - Andover, ME
  • Average humidity in May: 76%

The months with the highest relative humidity are January, February and March (86%).
The months with the lowest relative humidity are May and November (76%).

Average rainfall in May
Andover, ME

Average rainfall in May - Andover, ME
  • Average rainfall in May: 2.17"

The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is July (1.85").

Average rainfall days in May
Andover, ME

Average rainfall days in May - Andover, ME
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in May
Andover, ME

Average snowfall in May - Andover, ME
  • Average snowfall in May: 0.31"

The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Andover, ME

Average snowfall days in May - Andover, ME
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Andover, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in May
Andover, ME

Average sunshine days in May - Andover, ME
  • Average sunshine days in May: 13.6 days

The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).

Average UV index in May
Andover, ME

Average UV index in May - Andover, 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 February and December (UV index 1).

Average cloud cover in May
Andover, ME

Average cloud cover in May - Andover, ME
  • Average cloud cover in May: 52

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 40).

Average visibility in May
Andover, ME

Average visibility in May - Andover, ME
  • Average visibility in May: 5mi

The months with the highest visibility are May, June, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, July, August and September (4mi).

Andover, Maine, USA

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