May weather forecast
Andover, NH

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Weather in May

The last month of the spring, May, is a refreshing month in Andover, New Hampshire, with an average temperature ranging between max 64.9°F (18.3°C) and min 44.4°F (6.9°C).

Temperature

With the transition into May, Andover experiences an increase in average high-temperatures, moving up from a fresh 51.4°F (10.8°C) in April to an enjoyable 64.9°F (18.3°C). During the month of May, the temperature generally drops to a low average of 44.4°F (6.9°C).

Humidity

The months with the lowest humidity in Andover are April and May, with an average relative humidity of 75%.

Rainfall

In May, the rain falls for 11.1 days. Throughout May, 1.14" (29mm) of precipitation is accumulated. Throughout the year, in Andover, there are 103.3 rainfall days, and 12.52" (318mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Andover. May is the last month it regularly snows in Andover. During 0.3 snowfall days, in May, Andover aggregates 0.08" (2mm) of snow. Throughout the year, in Andover, there are 43.2 snowfall days, and 14.49" (368mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 43min.
On the first day of May, sunrise is at 5:38 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:20 pm EDT.

Sunshine

The average sunshine in May in Andover is 8.1h.

UV index

The months with the highest UV index in Andover are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are May temperatures in Andover?

Andover in May has an average high-temperature of 64.9°F (18.3°C) and an average low-temperature of 44.4°F (6.9°C).

What is the least humid month in Andover?

The months with the lowest humidity in Andover, New Hampshire, are April and May, with an average relative humidity of 75%.

What is the average humidity in May in Andover?

The average relative humidity in May in Andover, New Hampshire, is 75%.

How many days does it rain in May in Andover?

In Andover, in May, during 11.1 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

What is the last month it snows in Andover?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Andover aggregates 0.08" (2mm) of snow.

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

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

When is the sunrise / sunset in May in Andover?

In May, on the first day of the month, sunrise is at 5:38 am and sunset at 7:49 pm. On the last day of the month, in Andover, New Hampshire, sunrise is at 5:09 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Andover have in May?

In May, the average sunshine duration in Andover is 8.1h.

When is the highest UV index in Andover?

The months with the highest UV index in Andover are May through August, with an average maximum UV index of 5.

How high is the UV index in May in Andover?

In Andover, 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Andover, NH

Average temperature in May - Andover, NH
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in May: 44.4°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure in May
Andover, NH

Average pressure in May - Andover, NH
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Andover, NH

Average wind speed in May - Andover, NH
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in May
Andover, NH

Average humidity in May - Andover, NH
  • Average humidity in May: 75%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).

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Average rainfall in May
Andover, NH

Average rainfall in May - Andover, NH
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is October (1.54").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in May
Andover, NH

Average rainfall days in May - Andover, NH
  • Average rainfall days in May: 11.1 days

The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in May
Andover, NH

Average snowfall in May - Andover, NH
  • Average snowfall in May: 0.08"

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Andover, NH

Average snowfall days in May - Andover, NH
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (10.1 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, NH

Average daylight in May / Average sunshine in May - Andover, NH
  • Average daylight in May: 14h and 4min

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 1min

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 0min).

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Average sunshine days in May
Andover, NH

Average sunshine days in May - Andover, NH
  • Average sunshine days in May: 16.6 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is February (16.1 days).

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Average UV index in May
Andover, NH

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in May
Andover, NH

Average cloud cover in May - Andover, NH
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in May
Andover, NH

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

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

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Andover, New Hampshire, USA

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