Climate and monthly 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). 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). Weather in January »

Weather in February

The last month of the winter, February, is an icy month in Amherst, New Hampshire, with an average temperature fluctuating between 32.9°F (0.5°C) and 18.5°F (-7.5°C). Amherst marks the onset of February with an average high-temperature of a wintry 32.9°F (0.5°C), a subtle shift from January's 29.7°F (-1.3°C). Weather in February »

Weather in March

The first month of the spring, March, is also an icy month in Amherst, New Hampshire, with an average temperature fluctuating between 41°F (5°C) and 26.1°F (-3.3°C). In March, the meteorological conditions subtly change with the average high-temperature edging from a wintry 32.9°F (0.5°C) in February to a still cold 41°F (5°C). Weather in March »

Weather in April

April in Amherst, New Hampshire, is a fresh spring month, with an average temperature fluctuating between 54.7°F (12.6°C) and 37°F (2.8°C). Amherst's transition into April is marked by a temperature shift, moving from an icy 41°F (5°C) in March to a cool 54.7°F (12.6°C). Weather in April »

Weather in May

May, the last month of the spring in Amherst, is an enjoyable month, with an average temperature varying between 67.1°F (19.5°C) and 46.9°F (8.3°C). May's onset is marked by a temperature increase, moving from a fresh 54.7°F (12.6°C) in April to a refreshing 67.1°F (19.5°C). Weather in May »

Weather in June

June, the first month of the summer in Amherst, is a moderately hot month, with an average temperature varying between 74.7°F (23.7°C) and 54.1°F (12.3°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a comfortable 67.1°F (19.5°C) in May to a moderately hot 74.7°F (23.7°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Amherst, New Hampshire, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 61°F (16.1°C). Amherst's July weather, marked by an average high temperature of 81.5°F (27.5°C) and an average low temperature of 61°F (16.1°C), is the warmest in the year. The heat index value for July is evaluated at a hot 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Amherst, New Hampshire, with an average temperature ranging between min 59.4°F (15.2°C) and max 79.3°F (26.3°C). The arrival of August is marked by an average high-temperature of a still moderately hot 79.3°F (26.3°C), bearing a close resemblance to July. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Amherst, New Hampshire, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 71.8°F (22.1°C). Amherst's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 79.3°F (26.3°C) to a pleasant 71.8°F (22.1°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Amherst, New Hampshire, with an average temperature varying between 43.5°F (6.4°C) and 58.5°F (14.7°C). October's arrival coincides with a drop in the average high-temperature, decreasing from September's pleasant 71.8°F (22.1°C) to a moderate 58.5°F (14.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Amherst, is also a frosty month, with temperature in the range of an average low of 33.1°F (0.6°C) and an average high of 46.6°F (8.1°C). In November, the meteorological conditions alter, with the average high-temperature shifting from a moderate 58.5°F (14.7°C) in October to a chilly 46.6°F (8.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Amherst, New Hampshire, with an average temperature ranging between min 24.6°F (-4.1°C) and max 35.4°F (1.9°C). In December, the meteorological conditions alter, with the average high-temperature shifting from a chilly 46.6°F (8.1°C) in November to a cold 35.4°F (1.9°C). Weather in December »
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 many days does it rain in Amherst?

Throughout the year, there are 146.9 rainfall days, and 28.15" (715mm) of precipitation is accumulated.

When does it snow in Amherst?

January through May, October through December are months with snowfall in Amherst.

How many days does it snow in Amherst?

Throughout the year, there are 38.3 snowfall days, and 26.42" (671mm) of snow is accumulated.

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.

What is the most humid month in Amherst?

The most humid month is February, with an average relative humidity of 82%.

What is the snowiest month in Amherst?

The month with the most snowfall in Amherst, New Hampshire, is February, when snow falls for 9.4 days and typically aggregates up to 6.42" (163mm) of snow.

What is the month with the least sunshine in Amherst?

February has the least sunshine of the year in Amherst, with an average of 4.6h of sunshine.

When is Daylight Saving Time (DST) in Amherst?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Amherst, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Amherst?

The least humid month in Amherst, New Hampshire, is April, with an average relative humidity of 72%.

When it does not snow in Amherst?

June through September are months without snowfall.

When are the longest days in Amherst?

With an average of 15h and 18min of daylight, June has the longest days of the year.

What time of the year is the hottest in Amherst?

The warmest time of the year in Amherst, New Hampshire, is July, with temperatures averaging a high of 81.5°F (27.5°C) and a low of 61°F (16.1°C).

What are the months with the highest UV index in Amherst?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Amherst, New Hampshire.

What month has the most sunshine in Amherst?

With an average of 10.4h of sunshine, August has the most sunshine of the year.

What is the driest month in Amherst?

September is the month with the least rainfall in Amherst. Rain falls for 11.4 days and accumulates 1.61" (41mm) of precipitation.

What is the rainiest month in Amherst?

The month with the most rainfall in Amherst is October, when the rain falls for 13.6 days and typically aggregates up to 3.03" (77mm) of precipitation.

What is the month with the shortest days in Amherst?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

Average temperature
Amherst, NH

Average temperature - Amherst, NH

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).

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
Amherst, NH

Average pressure - Amherst, NH

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
Amherst, NH

Average wind speed - Amherst, NH

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
Amherst, NH

Average humidity - Amherst, NH

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

Average rainfall
Amherst, NH

Average rainfall - Amherst, NH

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
Amherst, NH

Average rainfall days - Amherst, NH

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
Amherst, NH

Average snowfall - Amherst, NH

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
Amherst, NH

Average snowfall days - Amherst, NH

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 / Average sunshine
Amherst, NH

Average daylight / Average sunshine - Amherst, NH

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).

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
Amherst, NH

Average sunshine days - Amherst, NH

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
Amherst, NH

Average UV index - Amherst, NH

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 visibility
Amherst, NH

Average visibility - Amherst, NH

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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