December weather forecast
Lower Bartlett, NH

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Weather in December

The first month of the winter, December, is also a subzero cold month in Lower Bartlett, New Hampshire, with an average temperature ranging between min 18.7°F (-7.4°C) and max 29.3°F (-1.5°C).

Temperature

Transition into December marks a drop in the average high-temperature, moving from a cold 40.8°F (4.9°C) in November to a freezing cold 29.3°F (-1.5°C). Lower Bartlett's average low-temperature for the month of December records at a still subzero cold 18.7°F (-7.4°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Lower Bartlett, in December, it is raining for 11.9 days, with typically 3.27" (83mm) of accumulated precipitation. In Lower Bartlett, New Hampshire, during the entire year, the rain falls for 173.8 days and collects up to 33.54" (852mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Lower Bartlett, New Hampshire. In Lower Bartlett, during December, snow falls for 14.7 days and regularly aggregates up to 9.21" (234mm) of snow. In Lower Bartlett, during the entire year, snow falls for 80.5 days and aggregates up to 59.25" (1505mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:07 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:16 pm EST.

Sunshine

In December, the average sunshine is 4.4h.

UV index

February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is December in Lower Bartlett?

The average high-temperature, in December, in Lower Bartlett, is 29.3°F (-1.5°C), while the average low-temperature is 18.7°F (-7.4°C).

What is the average humidity in December in Lower Bartlett?

In December, the average relative humidity in Lower Bartlett, New Hampshire, is 82%.

How many days does it rain in December in Lower Bartlett?

In Lower Bartlett, in December, it is raining for 11.9 days, with typically 3.27" (83mm) of accumulated precipitation.

How many days does it snow in December in Lower Bartlett?

In December, in Lower Bartlett, New Hampshire, it is snowing for 14.7 days. Throughout December, 9.21" (234mm) of snow is accumulated.

What is the month with the shortest days in Lower Bartlett?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

What is the average length of the day in December in Lower Bartlett?

In Lower Bartlett, the average day length in December is 8h and 57min.

When is the sunrise / sunset in December in Lower Bartlett?

On the first day of December in Lower Bartlett, New Hampshire, sunrise is at 7:00 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:16 pm EST.

How many hours of sunshine does Lower Bartlett have in December?

The average sunshine duration in December in Lower Bartlett, New Hampshire, is 4.4h.

When is the lowest UV index in Lower Bartlett?

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

What is the UV index reading in December in Lower Bartlett?

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

Average temperature in December - Lower Bartlett, NH
  • Average high temperature in December: 29.3°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (24.1°F).

  • Average low temperature in December: 18.7°F

The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in December
Lower Bartlett, NH

Average pressure in December - Lower Bartlett, NH
  • Average pressure in December: 30.03"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 December
Lower Bartlett, NH

Average wind speed in December - Lower Bartlett, NH
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in December
Lower Bartlett, NH

Average humidity in December - Lower Bartlett, NH
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are May and November (77%).

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Average rainfall in December
Lower Bartlett, NH

Average rainfall in December - Lower Bartlett, NH
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in December
Lower Bartlett, NH

Average rainfall days in December - Lower Bartlett, NH
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (10.8 days).

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Average snowfall in December
Lower Bartlett, NH

Average snowfall in December - Lower Bartlett, NH
  • Average snowfall in December: 9.21"

The month with the highest snowfall is February (15.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Lower Bartlett, NH

Average snowfall days in December - Lower Bartlett, NH
  • Average snowfall days in December: 14.7 days

The month with the highest number of snowfall days is February (17.5 days).
The 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
Lower Bartlett, NH

Average daylight in December / Average sunshine in December - Lower Bartlett, NH
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in December
Lower Bartlett, NH

Average sunshine days in December - Lower Bartlett, NH
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (7.7 days).

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Average UV index in December
Lower Bartlett, NH

Average UV index in December - Lower Bartlett, NH
  • Average UV index in December: 1

The months with the highest UV index are 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 December
Lower Bartlett, NH

Average cloud cover in December - Lower Bartlett, NH
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in December
Lower Bartlett, NH

Average visibility in December - Lower Bartlett, NH
  • Average visibility in December: 5mi

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

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Lower Bartlett, New Hampshire, USA

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