January weather forecast
Newmarket, NH

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Weather in January

Chilly temperatures, high humidity, and frequent snowfall all characterize Newmarket's January weather. This month stands as one of the coldest, with average high and low temperatures of 31.5°F (-0.3°C) and 19.8°F (-6.8°C) respectively. Locals keep warm clothing handy, particularly to weather the significant snowfall of 3.9" (99mm) typically experienced. Although the sun is less visible during this period, Newmarket's winter beauty is undeniably enhanced with frosty mornings and clear, starlit nights.

Temperature

Temperature records in Newmarket mark January as the coldest month, with highs averaging 31.5°F (-0.3°C) and lows at 19.8°F (-6.8°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 80%.

Rainfall

In Newmarket, during January, the rain falls for 8 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Newmarket, during the entire year, the rain falls for 144.8 days and collects up to 27.24" (692mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Newmarket, in January, snow falls for 8.7 days, with typically accumulated 3.9" (99mm) of snow. Throughout the year, there are 35.1 snowfall days, and 18.78" (477mm) of snow is accumulated.

Daylight

In January, the average length of the day in Newmarket is 9h and 26min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:19 pm. On the last day of January, sunrise is at 7:00 am and sunset at 4:54 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

In Newmarket, January is the coldest month, with temperatures averaging a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C).

How cold is it in January?

The high-temperature, in January, in Newmarket, is 31.5°F (-0.3°C), while the low-temperature averages to 19.8°F (-6.8°C).

What are the most humid months?

The months with the highest humidity are January and February, with an average relative humidity of 80%.

What is the average humidity in January?

In January, the average relative humidity is 80%.

How much does it rain in January?

In January, in Newmarket, the rain falls for 8 days. Throughout January, 2.05" (52mm) of precipitation is accumulated.

How many days does it snow in January?

In January, it is snowing for 8.7 days. Throughout January, 3.9" (99mm) of snow is accumulated.

How many hours of daylight does Newmarket have in January?

The average day length in January is 9h and 26min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:15 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:54 pm EST.

How many hours of sunshine does Newmarket have in January?

The average sunshine duration in January is 5.1h.

What are the months with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Newmarket.

What is the UV index intensity in January?

In Newmarket, the average daily maximum UV index in January is 2. 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 January
Newmarket, NH

Average temperature in January - Newmarket, NH
  • Average high temperature in January: 31.5°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in January
Newmarket, NH

Average pressure in January - Newmarket, NH
  • Average pressure in January: 29.99"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Newmarket, NH

Average wind speed in January - Newmarket, NH
  • Average wind speed in January: 10.8mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in January
Newmarket, NH

Average humidity in January - Newmarket, NH
  • Average humidity in January: 80%

The months with the highest relative humidity are January and February (80%).
The months with the lowest relative humidity are April and November (75%).

Average rainfall in January
Newmarket, NH

Average rainfall in January - Newmarket, NH
  • Average rainfall in January: 2.05"

The wettest months (with the highest rainfall) are October and December (2.87").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in January
Newmarket, NH

Average rainfall days in January - Newmarket, NH
  • Average rainfall days in January: 8 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.6 days).

Average snowfall in January
Newmarket, NH

Average snowfall in January - Newmarket, NH
  • Average snowfall in January: 3.9"

The month with the highest snowfall is December (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Newmarket, NH

Average snowfall days in January - Newmarket, NH
  • Average snowfall days in January: 8.7 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Newmarket, NH

Average daylight in January / Average sunshine in January - Newmarket, NH
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in January
Newmarket, NH

Average sunshine days in January - Newmarket, NH
  • Average sunshine days in January: 16 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in January
Newmarket, NH

Average UV index in January - Newmarket, NH
  • Average UV index in January: 2

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in January
Newmarket, NH

Average cloud cover in January - Newmarket, NH
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in January
Newmarket, NH

Average visibility in January - Newmarket, NH
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Newmarket, New Hampshire, USA

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