January weather forecast
Amherst, NH

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Weather in January

January, the same as December, in Amherst, New Hampshire, is another subzero cold winter month, with an average temperature fluctuating between 17.1°F (-8.3°C) and 29.7°F (-1.3°C).

Temperature

During the coldest month, January, temperatures average a high of 29.7°F (-1.3°C) and a low of 17.1°F (-8.3°C).

Humidity

The average relative humidity in January in Amherst is 81%.

Rainfall

In Amherst, during January, the rain falls for 6.9 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 146.9 rainfall days, and 28.15" (715mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Amherst, in January, snow falls for 9.3 days, with typically accumulated 6.22" (158mm) of snow. In Amherst, New Hampshire, during the entire year, snow falls for 38.3 days and aggregates up to 26.42" (671mm) of snow.

Daylight

In Amherst, the average length of the day in January is 9h and 27min.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:22 pm. On the last day of January, in Amherst, New Hampshire, sunrise is at 7:02 am and sunset at 4:57 pm EST.

Sunshine

The average sunshine in January in Amherst, New Hampshire, is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 13, 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 Amherst?

Amherst's temperature records reveal January as the coldest month, marked by average highs of 29.7°F (-1.3°C) and lows of 17.1°F (-8.3°C).

How cold is January in Amherst?

In Amherst, 29.7°F (-1.3°C) is the average high-temperature and 17.1°F (-8.3°C) is the average low-temperature during January.

What is the average humidity in January in Amherst?

In January, the average relative humidity in Amherst is 81%.

How many days does it rain in January in Amherst?

In Amherst, in January, it is raining for 6.9 days, with typically 2.05" (52mm) of accumulated precipitation.

How many days does it snow in January in Amherst?

In Amherst, New Hampshire, in January, during 9.3 snowfall days, 6.22" (158mm) of snow is typically accumulated.

How many hours of daylight does Amherst have in January?

In January, the average day length in Amherst, New Hampshire, is 9h and 27min.

When is the sunrise / sunset in January in Amherst?

In January, on the first day of the month, sunrise is at 7:17 am and sunset at 4:22 pm. On the last day of the month, in Amherst, New Hampshire, sunrise is at 7:02 am and sunset at 4:57 pm EST.

How many hours of sunshine does Amherst have in January?

The average sunshine duration in January in Amherst, New Hampshire, is 5.1h.

What is the month with the lowest UV index in Amherst?

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

What is the UV index reading in January in Amherst?

The average daily maximum UV index in January in Amherst is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Amherst, NH

Average temperature in January - Amherst, NH
  • Average high temperature in January: 29.7°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in January
Amherst, NH

Average pressure in January - Amherst, NH
  • Average pressure in January: 30.01"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Amherst, NH

Average wind speed in January - Amherst, NH
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in January
Amherst, NH

Average humidity in January - Amherst, NH
  • Average humidity in January: 81%

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

Average rainfall in January
Amherst, NH

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

The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in January
Amherst, NH

Average rainfall days in January - Amherst, NH
  • Average rainfall days in January: 6.9 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in January
Amherst, NH

Average snowfall in January - Amherst, NH
  • Average snowfall in January: 6.22"

The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Amherst, NH

Average snowfall days in January - Amherst, NH
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Amherst, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
Amherst, NH

Average sunshine days in January - Amherst, NH
  • Average sunshine days in January: 17.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in January
Amherst, NH

Average UV index in January - Amherst, 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
Amherst, NH

Average cloud cover in January - Amherst, 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 33).

Average visibility in January
Amherst, NH

Average visibility in January - Amherst, NH
  • Average visibility in January: 5mi

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

Amherst, New Hampshire, USA

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