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

December weather forecast and climate
Manchester, NH

The colorful buildings in the city of Manchester, New Hampshire, right next to scenic trees on the seashore, a beautiful glass image in the river below
The colorful buildings in the city of Manchester, New Hampshire, right next to scenic trees on the seashore, a beautiful glass image in the river below
The first month of the winter, December, is also a wintry month in Manchester, New Hampshire, with average temperature fluctuating between 22.5°F (-5.3°C) and 38.1°F (3.4°C).

Temperature

In December, the average high-temperature decreases, from a chilly 49.8°F (9.9°C) in November, to a cold 38.1°F (3.4°C). The average low-temperature, in December, is 22.5°F (-5.3°C).

Rainfall

In Manchester, it is raining for 9.5 days, with typically 3.3" (83.3mm) of accumulated precipitation. Throughout the year, there are 120.5 rainfall days, and 44.6" (1132.4mm) of precipitation is accumulated.

Snowfall

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

Daylight

December has the shortest days of the year, with an average of 9.1h of daylight.

Sunshine

November and December, with an average of 4h of sunshine, are months with the least sunshine in Manchester.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Manchester. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 1 interpret into the following advice:
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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Manchester?

In December, in Manchester, the average high-temperature is 38.1°F (3.4°C), and the average low-temperature is 22.5°F (-5.3°C).

How many days does it rain in December in Manchester?

In Manchester, in December, it is raining for 9.5 days, with typically 3.3" (83.3mm) of accumulated precipitation.

How many days does it snow in December in Manchester?

In December, in Manchester, New Hampshire, it is snowing for 3.7 days. Throughout December, 11.4" (289.6mm) of snow is accumulated.

What is the month with the shortest days in Manchester?

December has the shortest days of the year in Manchester, New Hampshire, with an average of 9.1h of daylight.

How many hours of daylight does Manchester have in December?

The average length of the day in December in Manchester is 9.1h.

What is the month with the least sunshine in Manchester?

Months with the least sunshine are November and December, with an average of 4h of sunshine.

How long on average sun shines in December in Manchester?

In December, the average sunshine is 4h.

What are the months with the lowest UV index in Manchester?

Months with the lowest UV index in Manchester are January and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Manchester?

The average daily maximum UV index in December in Manchester is 1. A UV Index value of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Manchester, NH
  • Average high temperature in December: 38.2°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in December: 22.5°F

The month with the highest average low temperature is July (62.7°F).
The coldest month (with the lowest average low temperature) is January (15.7°F).

Average rainfall in December - Manchester, NH
  • Average rainfall in December: 3.3"

The wettest month (with the highest rainfall) is March (4.3").
The driest month (with the lowest rainfall) is February (2.8").

Average rainfall days in December - Manchester, NH
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is April (11.2 days).
The month with the lowest number of rainy days is February (8 days).

Average snowfall in December - Manchester, NH
  • Average snowfall in December: 11.4"

The month with the highest snowfall is January (14.4").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in December - Manchester, NH
  • Average snowfall days in December: 3.7 days

The month with the highest number of snowfall days is January (5.2 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 - Manchester, NH
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 4h

The month with most sunshine is July (Average sunshine: 10h).
Months with least sunshine are November and December (Average sunshine: 4).

Average UV index in December - Manchester, 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).