May weather forecast
Andover, MA

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Weather in May

May, the last month of the spring in Andover, is a comfortable month, with an average temperature fluctuating between 65.8°F (18.8°C) and 48.7°F (9.3°C).

Temperature

The onset of May brings a temperature shift, with the average high-temperature moving from a fresh 54.7°F (12.6°C) in April to a comfortable 65.8°F (18.8°C). During May, Andover records a consistent average nighttime temperature of 48.7°F (9.3°C).

Humidity

The average relative humidity in May is 73%.

Rainfall

In Andover, during May, the rain falls for 15.6 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Andover, during the entire year, the rain falls for 144.5 days and collects up to 27.4" (696mm) 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, Andover aggregates 0.16" (4mm) of snow. Throughout the year, there are 31.4 snowfall days, and 20.39" (518mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 38min.
On the first day of the month, sunrise is at 5:37 am and sunset at 7:45 pm. On the last day of May, in Andover, sunrise is at 5:09 am and sunset at 8:15 pm EDT.

Sunshine

In Andover, Massachusetts, the average sunshine in May is 8.6h.

UV index

In Andover, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are the temperatures in Andover in May?

The high-temperature, in May, in Andover, is 65.8°F (18.8°C), while the low-temperature averages to 48.7°F (9.3°C).

What is the average humidity in May in Andover?

In May, the average relative humidity in Andover, Massachusetts, is 73%.

How many days does it rain in May in Andover?

In May, in Andover, the rain falls for 15.6 days. Throughout May, 1.93" (49mm) of precipitation is accumulated.

What is the last month it snows in Andover?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Andover aggregates 0.16" (4mm) of snow.

What is the average length of the day in May in Andover?

In May, the average day length in Andover, Massachusetts, is 14h and 38min.

When is the sunrise / sunset in May in Andover?

In May, on the first day of the month, sunrise is at 5:37 am and sunset at 7:45 pm. On the last day of the month, in Andover, sunrise is at 5:09 am and sunset at 8:15 pm EDT.

How many hours of sunshine does Andover have in May?

In Andover, Massachusetts, the average sunshine duration in May is 8.6h.

How high is the UV index in May in Andover?

The average daily maximum UV index in May in Andover 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
Andover, MA

Average temperature in May - Andover, MA
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in May
Andover, MA

Average pressure in May - Andover, MA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Andover, MA

Average wind speed in May - Andover, MA
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Andover, MA

Average humidity in May - Andover, MA
  • Average humidity in May: 73%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in May
Andover, MA

Average rainfall in May - Andover, MA
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days in May
Andover, MA

Average rainfall days in May - Andover, MA
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in May
Andover, MA

Average snowfall in May - Andover, MA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Andover, MA

Average snowfall days in May - Andover, MA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (8.3 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
Andover, MA

Average daylight in May / Average sunshine in May - Andover, MA
  • 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 6min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in May
Andover, MA

Average sunshine days in May - Andover, MA
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is April (13.6 days).

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Average UV index in May
Andover, MA

Average UV index in May - Andover, MA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
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
Andover, MA

Average cloud cover in May - Andover, MA
  • Average cloud cover in May: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in May
Andover, MA

Average visibility in May - Andover, MA
  • Average visibility in May: 6mi

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

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Andover, Massachusetts, USA

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