May weather forecast
Lancaster, NH

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Weather in May

May brings warm and pleasant weather to Lancaster, shedding the remnants of winter. A significant increase in high average temperatures is characteristic of this month, providing ample opportunity for outdoor activities and leisure. Snowfall exits the forecast and average rainfall dips to 2.24" (57mm), paving the way for dryer conditions. May's weather is consistent, with temperatures consistently staying within moderate limits. The days continue to extend, offering more sunlight each day.

Temperature

An increase in the average high-temperature marks May, surging from April's chilly 46.2°F (7.9°C) to a refreshing 62.2°F (16.8°C). Lancaster's average low-temperature in the month of May is recorded at a cold 41.2°F (5.1°C).

Humidity

The least humid month is May, with an average relative humidity of 76%.

Rainfall

In Lancaster, in May, during 16.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Lancaster, during the entire year, the rain falls for 150.5 days and collects up to 27.99" (711mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Lancaster aggregates 0.79" (20mm) of snow. In Lancaster, during the entire year, snow falls for 104.2 days and aggregates up to 61.02" (1550mm) of snow.

Daylight

In Lancaster, the average length of the day in May is 14h and 49min.
On the first day of May, sunrise is at 5:35 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:23 pm EDT.

Sunshine

In Lancaster, the average sunshine in May is 7.7h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 in May interprets into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are the temperatures in Lancaster in May?

During May, Lancaster experiences an average high-temperature of 62.2°F (16.8°C) and a low-temperature of 41.2°F (5.1°C).

What is the least humid month in Lancaster?

The least humid month in Lancaster is May, with an average relative humidity of 76%.

What is the average humidity in May in Lancaster?

The average relative humidity in May in Lancaster, New Hampshire, is 76%.

How many days does it rain in May in Lancaster?

In May, in Lancaster, New Hampshire, the rain falls for 16.5 days. Throughout May, 2.24" (57mm) of precipitation is accumulated.

What is the last month it snows in Lancaster?

May is the last month it regularly snows in Lancaster, New Hampshire. During 0.8 snowfall days, in May, Lancaster aggregates 0.79" (20mm) of snow.

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

The average day length in May is 14h and 49min.

When are sunrise and sunset in May in Lancaster?

On the first day of May in Lancaster, New Hampshire, sunrise is at 5:35 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Lancaster have in May?

In May, the average sunshine duration is 7.7h.

How high is the UV index in May in Lancaster?

In May, the average daily maximum UV index in Lancaster is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
Lancaster, NH

Average temperature in May - Lancaster, NH
  • Average high temperature in May: 62.2°F

The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in May: 41.2°F

The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in May
Lancaster, NH

Average pressure in May - Lancaster, NH
  • Average pressure in May: 29.98"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).

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Average wind speed in May
Lancaster, NH

Average wind speed in May - Lancaster, NH
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in May
Lancaster, NH

Average humidity in May - Lancaster, NH
  • Average humidity in May: 76%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in May
Lancaster, NH

Average rainfall in May - Lancaster, NH
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is August (1.97").

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Average rainfall days in May
Lancaster, NH

Average rainfall days in May - Lancaster, NH
  • Average rainfall days in May: 16.5 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (5 days).

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Average snowfall in May
Lancaster, NH

Average snowfall in May - Lancaster, NH
  • Average snowfall in May: 0.79"

The month with the highest snowfall is February (13.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Lancaster, NH

Average snowfall days in May - Lancaster, NH
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (21.4 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
Lancaster, NH

Average daylight in May / Average sunshine in May - Lancaster, NH
  • 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 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).

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Average sunshine days in May
Lancaster, NH

Average sunshine days in May - Lancaster, NH
  • Average sunshine days in May: 12.5 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (6.3 days).

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Average UV index in May
Lancaster, NH

Average UV index in May - Lancaster, NH
  • Average UV index in May: 4

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

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Average cloud cover in May
Lancaster, NH

Average cloud cover in May - Lancaster, NH
  • Average cloud cover in May: 52

The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).

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Average visibility in May
Lancaster, NH

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

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

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Lancaster, New Hampshire, USA

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