January weather forecast
Salem, NH

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Weather in January

January in Salem, New Hampshire initiates the year with abundant cloud cover and a fair share of snowfall, comprising a snowfall of 3.46" (88mm) across 8.5 days. The cold winter weather fosters the formation of snow rather than rain, providing a striking contrast to the hot, rain-filled summers in the region. Be prepared for a somewhat chilly start to the new year, with low temperatures generally hovering just above freezing, necessitating warm clothing. Despite these frosty temperatures, residents often get to enjoy clear skies, providing opportunities for winter activities. As the sunsets quite early, evenings come in sooner, but afford beautiful, starlit skies on clear nights.

Temperature

January is the month that records the lowest temperatures, with averages ranging from a high of 32.2°F (0.1°C) to a low of 20.3°F (-6.5°C).

Humidity

In January, the average relative humidity in Salem is 78%.

Rainfall

In Salem, in January, it is raining for 7.6 days, with typically 2.17" (55mm) of accumulated precipitation. In Salem, during the entire year, the rain falls for 144 days and collects up to 26.97" (685mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Salem, in January, snow falls for 8.5 days, with typically accumulated 3.46" (88mm) of snow. Throughout the year, there are 31.9 snowfall days, and 20.94" (532mm) of snow is accumulated.

Ocean temperature

In Salem, in January, the average water temperature is 41.5°F (5.3°C).
Note: Caution: 41.5°F (5.3°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.

Daylight

In Salem, the average length of the day in January is 9h and 28min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:21 pm. On the last day of January, sunrise is at 7:00 am and sunset at 4:55 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

The months with the lowest UV index in Salem are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in January interprets into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What are the coldest months in Salem?

With an average high-temperature of 32.2°F (0.1°C) and an average low-temperature of 20.3°F (-6.5°C), January is the coldest month.

How cold is January in Salem?

In January, in Salem, the average high-temperature is 32.2°F (0.1°C), and the average low-temperature is 20.3°F (-6.5°C).

What is the average humidity in January in Salem?

The average relative humidity in January in Salem, New Hampshire, is 78%.

How much does it rain in Salem in January?

In January, in Salem, New Hampshire, the rain falls for 7.6 days. Throughout January, 2.17" (55mm) of precipitation is accumulated.

How many days does it snow in January in Salem?

In Salem, New Hampshire, in January, snow falls for 8.5 days, with typically accumulated 3.46" (88mm) of snow.

What is the water temperature in January in Salem?

In Salem, in January, the average water temperature is 41.5°F (5.3°C). Swimming in 41.5°F (5.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Salem?

In January, the average day length in Salem is 9h and 28min.

When are sunrise and sunset in January in Salem?

In January, on the first day of the month, sunrise is at 7:15 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:55 pm EST.

How long on average sun shines in January in Salem?

In January, the average sunshine duration in Salem, New Hampshire, is 5.1h.

When is the lowest UV index in Salem?

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

What is the UV index reading in January in Salem?

In Salem, New Hampshire, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
37.9°F 3.3°C
32.2°F 0.1°C
34.9°F 1.6°C
Average low temperature
27.3°F -2.6°C
20.3°F -6.5°C
21.4°F -5.9°C
Average pressure
30.03" 763mmHg
30" 762mmHg
29.99" 762mmHg
Average wind speed
8.6mph 13.8km/h
9.2mph 14.8km/h
8.9mph 14.3km/h
Average max. wind speed
9.2mph 14.8km/h
9.8mph 15.8km/h
9.4mph 15.1km/h
Average wind speed gusts
14mph 22.5km/h
15mph 24.1km/h
14.4mph 23.2km/h
Average humidity
77%
78%
79%
Average rainfall
2.87" 73mm
2.17" 55mm
2.13" 54mm
Average rainfall days
10.6
7.6
7.6
Average snowfall
4.49" 114mm
3.46" 88mm
5.87" 149mm
Average snowfall days
5.3
8.5
7.7
Average sea temperature
45.9°F 7.7°C
41.6°F 5.3°C
39.2°F 4°C
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 5min
5h 1min
4h 4min
Average sunshine days
16.5
17.6
14.3
Average UV index
2
2
2
Average cloud cover
47%
44%
48%
Average visibility
6mi 9.7km
6mi 9.7km
5mi 8km

Average temperature in January
Salem, NH

Average temperature in January - Salem, NH
  • Average high temperature in January: 32.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in January: 20.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure in January
Salem, NH

Average pressure in January - Salem, NH
  • Average pressure in January: 30"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).

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Average wind speed in January
Salem, NH

Average wind speed in January - Salem, NH
  • Average wind speed in January: 9.2mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in January
Salem, NH

Average humidity in January - Salem, NH
  • Average humidity in January: 78%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in January
Salem, NH

Average rainfall in January - Salem, NH
  • Average rainfall in January: 2.17"

The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in January
Salem, NH

Average rainfall days in January - Salem, NH
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and February (7.6 days).

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Average snowfall in January
Salem, NH

Average snowfall in January - Salem, NH
  • Average snowfall in January: 3.46"

The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Salem, NH

Average snowfall days in January - Salem, NH
  • Average snowfall days in January: 8.5 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in January
Salem, NH

Average sea temperature in January - Salem, NH
  • Average sea temperature in January: 41.6°F

The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).

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

Average daylight in January / Average sunshine in January - Salem, NH
  • Average daylight in January: 9h and 3min

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 month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
Salem, NH

Average sunshine days in January - Salem, NH
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is May (13.5 days).

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Average UV index in January
Salem, NH

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

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

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Average cloud cover in January
Salem, NH

Average cloud cover in January - Salem, NH
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in January
Salem, NH

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

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).

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Salem, New Hampshire, USA

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