Concord
New Hampshire, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Concord, NH

A rocky coast overlooking beach homes in Rye, Concord point, New Hampshire
A rocky coast overlooking beach homes in Rye, Concord point, New Hampshire
December, the first month of the winter, in Concord, is still a cold month, with average temperature varying between 17.2°F (-8.2°C) and 36.3°F (2.4°C).

Temperature

In December, the average high-temperature decreases, from a frosty 48.4°F (9.1°C) in November, to a wintry 36.3°F (2.4°C). The average low-temperature, in Concord, is 17.2°F (-8.2°C).

Humidity

In Concord, the average relative humidity in December is 72.3%.

Rainfall

In Concord, in December, during 10.9 rainfall days, 3.2" (81.3mm) of precipitation is typically accumulated. In Concord, during the entire year, the rain falls for 130.9 days and collects up to 40.6" (1031.6mm) of precipitation.

Snowfall

Months with snowfall in Concord are January through April, November and December.

Daylight

The month with the shortest days is December, with an average of 9h of daylight.

Sunshine

Months with the least sunshine in Concord, New Hampshire, are November and December, with an average of 4.3h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the average person.
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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Concord?

In Concord, New Hampshire, in December, the average high-temperature is 36.3°F (2.4°C), and the average low-temperature is 17.2°F (-8.2°C).

What is the average humidity in December in Concord?

In December, the average relative humidity in Concord, New Hampshire, is 72.3%.

How much does it rain in Concord in December?

In Concord, New Hampshire, in December, it is raining for 10.9 days, with typically 3.2" (81.3mm) of accumulated precipitation.

How much does it snow in Concord in December?

In December, it is snowing for 6.6 days. Throughout December, 14.5" (368.3mm) of snow is accumulated.

What is the month with the shortest days in Concord?

December has the shortest days of the year, with an average of 9h of daylight.

How many hours of daylight does Concord have in December?

In December, the average length of the day is 9h.

What is the month with the least sunshine in Concord?

November and December, with an average of 4.3h of sunshine, are months with the least sunshine.

How many hours of sunshine does Concord have in December?

In December, the average sunshine is 4.3h.

When is the lowest UV index in Concord?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Concord, New Hampshire.

What is the UV index intensity in December in Concord?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Concord, NH
  • Average high temperature in December: 2.4°C

The warmest month (with the highest average high temperature) is July (27.9°C).
The month with the lowest average high temperature is January (-0.7°C).

  • Average low temperature in December: -8.2°C

The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-12°C).

Average humidity in December - Concord, NH
  • Average humidity in December: 72.3%

The month with the highest relative humidity is September (76.3%).
The month with the lowest relative humidity is April (62%).

Average rainfall in December - Concord, NH
  • Average rainfall in December: 81.3mm

The wettest month (with the highest rainfall) is October (102.6mm).
The driest month (with the lowest rainfall) is February (66.5mm).

Average rainfall days in December - Concord, NH
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is June (12.7 days).
The month with the lowest number of rainy days is September (9.3 days).

Average snowfall in December - Concord, NH
  • Average snowfall in December: 368.3mm

The month with the highest snowfall is January (459.7mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Concord, NH
  • Average snowfall days in December: 6.6 days

The month with the highest number of snowfall days is January (8.2 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Concord, NH
  • Average daylight in December: 9h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 4.3h

The month with most sunshine is July (Average sunshine: 9.5h).
Months with least sunshine are November and December (Average sunshine: 4.3).

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

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).