May weather forecast
Rollinsford, NH

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Weather in May

May, the last month of the spring in Rollinsford, is a comfortable month, with an average temperature fluctuating between 63.1°F (17.3°C) and 46.2°F (7.9°C).

Temperature

The rise of average high-temperatures is seen in May, with an increase from a fresh 52°F (11.1°C) in April to an enjoyable 63.1°F (17.3°C). May nights in Rollinsford, New Hampshire, cool down to an average low-temperature of 46.2°F (7.9°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

In Rollinsford, in May, it is raining for 15.1 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 143.1 rainfall days, and 29.06" (738mm) of precipitation is accumulated.

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, Rollinsford aggregates 0.28" (7mm) of snow. Throughout the year, there are 40 snowfall days, and 27.8" (706mm) of snow is accumulated.

Daylight

In Rollinsford, the average length of the day in May is 14h and 42min.
On the first day of the month, sunrise is at 5:35 am and sunset at 7:45 pm. On the last day of May, in Rollinsford, sunrise is at 5:06 am and sunset at 8:16 pm EDT.

Sunshine

In Rollinsford, the average sunshine in May is 8.2h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What is the temperature in May in Rollinsford?

An average high-temperature, in May, in Rollinsford, is 63.1°F (17.3°C) and the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in May in Rollinsford?

In Rollinsford, New Hampshire, the average relative humidity in May is 77%.

How much does it rain in Rollinsford in May?

In Rollinsford, New Hampshire, in May, it is raining for 15.1 days, with typically 2.13" (54mm) of accumulated precipitation.

What is the last month it snows in Rollinsford?

May is the last month it regularly snows in Rollinsford, New Hampshire. During 0.1 snowfall days, in May, Rollinsford aggregates 0.28" (7mm) of snow.

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

The average day length in May is 14h and 42min.

When are sunrise and sunset in May in Rollinsford?

On the first day of May, sunrise is at 5:35 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:06 am and sunset at 8:16 pm EDT.

How long on average sun shines in May in Rollinsford?

In Rollinsford, the average sunshine duration in May is 8.2h.

What is the UV index intensity in May in Rollinsford?

In May, the average daily maximum UV index in Rollinsford, New Hampshire, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe 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
Rollinsford, NH

Average temperature in May - Rollinsford, NH
  • Average high temperature in May: 63.1°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in May: 46.2°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in May
Rollinsford, NH

Average pressure in May - Rollinsford, NH
  • 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
Rollinsford, NH

Average wind speed in May - Rollinsford, NH
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in May
Rollinsford, NH

Average humidity in May - Rollinsford, NH
  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in May
Rollinsford, NH

Average rainfall in May - Rollinsford, NH
  • Average rainfall in May: 2.13"

The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in May
Rollinsford, NH

Average rainfall days in May - Rollinsford, NH
  • Average rainfall days in May: 15.1 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in May
Rollinsford, NH

Average snowfall in May - Rollinsford, NH
  • Average snowfall in May: 0.28"

The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Rollinsford, NH

Average snowfall days in May - Rollinsford, NH
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (10.4 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
Rollinsford, NH

Average daylight in May / Average sunshine in May - Rollinsford, NH
  • 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in May
Rollinsford, NH

Average sunshine days in May - Rollinsford, NH
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index in May
Rollinsford, NH

Average UV index in May - Rollinsford, NH
  • 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).

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Average cloud cover in May
Rollinsford, NH

Average cloud cover in May - Rollinsford, NH
  • Average cloud cover in May: 47

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in May
Rollinsford, NH

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

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

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Rollinsford, New Hampshire, USA

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