January weather forecast
Northampton, MA

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Weather in January

Northampton, Massachusetts welcomes the New Year under a blanket of snow with January being one of the coldest months. In terms of temperature, January sees lows of 18°F (-7.8°C) and highs of 30.4°F (-0.9°C). The chill in the air is exacerbated by an average wind speed of 8mph (12.9km/h), turning the streets into wind tunnels. Frosty conditions are typical this month, giving the land a stark but serene winter beauty. The snowfalls and cold temperatures have many locals and tourists engaging in winter activities.

Temperature

January, with average temperatures reaching a high of 30.4°F (-0.9°C) and a low of 18°F (-7.8°C), is the coldest month.

Humidity

In January, the average relative humidity in Northampton is 80%.

Rainfall

In Northampton, in January, during 8.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, in Northampton, Massachusetts, there are 134.1 rainfall days, and 14.84" (377mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. In Northampton, in January, snow falls for 7.3 days, with typically accumulated 1.73" (44mm) of snow. In Northampton, during the entire year, snow falls for 28.6 days and aggregates up to 6.5" (165mm) of snow.

Daylight

The average length of the day in January is 9h and 30min.
On the first day of January, sunrise is at 7:19 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:02 pm EST.

Sunshine

In Northampton, the average sunshine in January is 5.1h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 during January translates into the following guidance:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What is the coldest time of year in Northampton?

Temperature readings reach their annual highs in January, averaging 30.4°F (-0.9°C) and a minimum average of 18°F (-7.8°C).

How cold is it in Northampton in January?

The average high-temperature, in January, in Northampton, is 30.4°F (-0.9°C), while the average low-temperature is 18°F (-7.8°C).

What is the average humidity in January in Northampton?

In Northampton, the average relative humidity in January is 80%.

How much does it rain in Northampton in January?

In Northampton, Massachusetts, in January, it is raining for 8.5 days, with typically 0.98" (25mm) of accumulated precipitation.

How many days does it snow in January in Northampton?

In Northampton, Massachusetts, in January, snow falls for 7.3 days, with typically accumulated 1.73" (44mm) of snow.

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

In January, the average day length in Northampton is 9h and 30min.

When is the sunrise / sunset in January in Northampton?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:28 pm. On the last day of the month, in Northampton, Massachusetts, sunrise is at 7:05 am and sunset at 5:02 pm EST.

How long on average sun shines in January in Northampton?

In Northampton, Massachusetts, the average sunshine duration in January is 5.1h.

When is the lowest UV index in Northampton?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

What is the UV index reading in January in Northampton?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Northampton, MA

Average temperature in January - Northampton, MA
  • Average high temperature in January: 30.4°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 (30.4°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in January
Northampton, MA

Average pressure in January - Northampton, MA
  • Average pressure in January: 30.03"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Northampton, MA

Average wind speed in January - Northampton, MA
  • Average wind speed in January: 8mph

The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in January
Northampton, MA

Average humidity in January - Northampton, MA
  • Average humidity in January: 80%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in January
Northampton, MA

Average rainfall in January - Northampton, MA
  • Average rainfall in January: 0.98"

The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in January
Northampton, MA

Average rainfall days in January - Northampton, MA
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in January
Northampton, MA

Average snowfall in January - Northampton, MA
  • Average snowfall in January: 1.73"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Northampton, MA

Average snowfall days in January - Northampton, MA
  • Average snowfall days in January: 7.3 days

The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Northampton, MA

Average daylight in January / Average sunshine in January - Northampton, MA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 5h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in January
Northampton, MA

Average sunshine days in January - Northampton, MA
  • Average sunshine days in January: 19 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in January
Northampton, MA

Average UV index in January - Northampton, MA
  • Average UV index in January: 2

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

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Average cloud cover in January
Northampton, MA

Average cloud cover in January - Northampton, MA
  • Average cloud cover in January: 46

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in January
Northampton, MA

Average visibility in January - Northampton, MA
  • Average visibility in January: 6mi

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

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Northampton, Massachusetts, USA

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