December weather forecast and climate
Lancaster, NH

Weather in December

December, the first month of the winter, in Lancaster, is still a freezing cold month, with temperature in the range of an average high of 27.7°F (-2.4°C) and an average low of 17.2°F (-8.2°C).

Temperature

In Lancaster, the average high-temperature decreases, from a cold 38.8°F (3.8°C) in November, to a freezing cold 27.7°F (-2.4°C). In Lancaster, in December, the average low-temperature is 17.2°F (-8.2°C).

Humidity

The average relative humidity in December is 86%.

Rainfall

In Lancaster, it is raining for 9.2 days, with typically 2.48" (63mm) of accumulated precipitation. 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. In Lancaster, in December, snow falls for 20 days, with typically accumulated 9.53" (242mm) of snow. Throughout the year, there are 104.2 snowfall days, and 61.02" (1550mm) of snow is accumulated.

Daylight

With an average of 8.9h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine in Lancaster is 3h.

UV index

Months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Lancaster?

In December, the average high-temperature is 27.7°F (-2.4°C), and the average low-temperature is 17.2°F (-8.2°C).

What is the average humidity in December in Lancaster?

The average relative humidity in December in Lancaster is 86%.

How much does it rain in Lancaster in December?

In Lancaster, in December, during 9.2 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

How many days does it snow in December in Lancaster?

In Lancaster, New Hampshire, in December, during 20 snowfall days, 9.53" (242mm) of snow is typically accumulated.

What is the month with the shortest days in Lancaster?

With an average of 8.9h of daylight, December has the shortest days of the year.

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

In Lancaster, New Hampshire, the average length of the day in December is 8.9h.

How many hours of sunshine does Lancaster have in December?

The average sunshine in December in Lancaster is 3h.

When is the lowest UV index in Lancaster?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in December in Lancaster?

The average daily maximum UV index in December in Lancaster, New Hampshire, is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Lancaster, NH

Average temperature in December - Lancaster, NH
  • Average high temperature in December: 27.7°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 December: 17.2°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 December
Lancaster, NH

Average pressure in December - Lancaster, NH
  • Average pressure in December: 30.03"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
Lancaster, NH

Average wind speed in December - Lancaster, NH
  • Average wind speed in December: 5.8mph

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 December
Lancaster, NH

Average humidity in December - Lancaster, NH
  • Average humidity in December: 86%

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 December
Lancaster, NH

Average rainfall in December - Lancaster, NH
  • Average rainfall in December: 2.48"

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 December
Lancaster, NH

Average rainfall days in December - Lancaster, NH
  • Average rainfall days in December: 9.2 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 December
Lancaster, NH

Average snowfall in December - Lancaster, NH
  • Average snowfall in December: 9.53"

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

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Average snowfall days in December
Lancaster, NH

Average snowfall days in December - Lancaster, NH
  • Average snowfall days in December: 20 days

The month with the highest number of snowfall days is January (21.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Lancaster, NH

Average daylight in December / Average sunshine in December - Lancaster, NH
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 3h

The month with the most sunshine is August (Average sunshine: 9.5h).
Months with the least sunshine are January and February (Average sunshine: 2.6).

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Average sunshine days in December
Lancaster, NH

Average sunshine days in December - Lancaster, NH
  • Average sunshine days in December: 8 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 December
Lancaster, NH

Average UV index in December - Lancaster, NH
  • Average UV index in December: 1

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

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Average cloud cover in December
Lancaster, NH

Average cloud cover in December - Lancaster, NH
  • Average cloud cover in December: 72

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 December
Lancaster, NH

Average visibility in December - Lancaster, NH
  • Average visibility in December: 4mi

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

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