Climate and monthly weather forecast
Andover, NH

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Weather in January

January, like December, is a freezing cold winter month in Andover, New Hampshire, with an average temperature fluctuating between 25.9°F (-3.4°C) and 12.7°F (-10.7°C). With average high temperatures of 25.9°F (-3.4°C) and lows of 12.7°F (-10.7°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Andover, New Hampshire, with an average temperature varying between 14.4°F (-9.8°C) and 28.8°F (-1.8°C). Andover's average high-temperature in February is a still subzero cold 28.8°F (-1.8°C), marking an insignificant difference from the 25.9°F (-3.4°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Andover, is an icy month, with an average temperature varying between 22.5°F (-5.3°C) and 37°F (2.8°C). With the onset of March, Andover observes a minor temperature ascent, with the average high-temperature adjusting from February's freezing cold 28.8°F (-1.8°C) to a cold 37°F (2.8°C). Weather in March »

Weather in April

April in Andover, New Hampshire, is a fresh spring month, with an average temperature varying between 33.6°F (0.9°C) and 51.4°F (10.8°C). Andover experiences a noticeable temperature shift with the start of April, with average high-temperatures moving from a cold 37°F (2.8°C) in March to a cool 51.4°F (10.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Andover, New Hampshire, with an average temperature ranging between max 64.9°F (18.3°C) and min 44.4°F (6.9°C). With the transition into May, Andover experiences an increase in average high-temperatures, moving up from a fresh 51.4°F (10.8°C) in April to an enjoyable 64.9°F (18.3°C). Weather in May »

Weather in June

June, the first month of the summer in Andover, is a pleasant month, with an average temperature fluctuating between 72.1°F (22.3°C) and 51.3°F (10.7°C). June comes with a subtle rise, with the average high-temperature adjusting from a comfortable 64.9°F (18.3°C) in May to a pleasant 72.1°F (22.3°C). Weather in June »

Weather in July

July in Andover, New Hampshire, is a warm summer month, with an average temperature ranging between min 57.6°F (14.2°C) and max 79°F (26.1°C). The average temperatures reach their apex in July, averaging 79°F (26.1°C) at the high end and 57.6°F (14.2°C) at the low end. Weather in July »

Weather in August

August, the last month of the summer in Andover, is also a moderately hot month, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 55.9°F (13.3°C). With the onset of August, the average high-temperature registers at a still warm 77.2°F (25.1°C), subtly different from July's 79°F (26.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Andover, is also an agreeable month, with an average temperature fluctuating between 69.1°F (20.6°C) and 49.5°F (9.7°C). September's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 77.2°F (25.1°C) in August to a pleasant 69.1°F (20.6°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Andover, New Hampshire, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 55.9°F (13.3°C). As Andover enters October, the average high-temperature decreases from the an agreeable 69.1°F (20.6°C) of September to a moderate 55.9°F (13.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Andover, New Hampshire, with an average temperature fluctuating between 30°F (-1.1°C) and 43.2°F (6.2°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a refreshing 55.9°F (13.3°C) in October to a frosty 43.2°F (6.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Andover, New Hampshire, with an average temperature fluctuating between 31.5°F (-0.3°C) and 21°F (-6.1°C). Andover's progression into December involves a drop in the average high-temperature, receding from a frosty 43.2°F (6.2°C) in November to a freezing cold 31.5°F (-0.3°C). Weather in December »
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Frequently asked questions

What month is the coldest in Andover?

January, marked by an average high-temperature of 25.9°F (-3.4°C) and a low-temperature of 12.7°F (-10.7°C), is the coldest month in Andover.

What is the most humid month in Andover?

The months with the highest humidity are January and February, with an average relative humidity of 86%.

What is the driest month in Andover?

The month with the least rainfall in Andover is January, when the rain falls for 4.3 days and typically collects 0.71" (18mm) of precipitation.

How much does it rain in Andover?

Throughout the year, in Andover, New Hampshire, there are 103.3 rainfall days, and 12.52" (318mm) of precipitation is accumulated.

When does it snow in Andover?

January through May, October through December are months with snowfall in Andover, New Hampshire.

How many days does it snow in Andover?

In Andover, during the entire year, snow falls for 43.2 days and aggregates up to 14.49" (368mm) of snow.

What is the snowiest month in Andover?

February is the month with the most snowfall in Andover. Snow falls for 10.1 days and accumulates 4.02" (102mm) of snow.

What is the month with the least sunshine in Andover?

February has the least sunshine of the year in Andover, with an average of 4h of sunshine.

What are the months with the lowest UV index in Andover?

The months with the lowest UV index in Andover, New Hampshire, are February and December, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Andover?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Andover, 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 Andover?

April and May, with an average relative humidity of 75%, are the least humid months in Andover, New Hampshire.

When is the highest UV index in Andover?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

When it does not snow in Andover?

June through September are months without snowfall in Andover, New Hampshire.

When are the longest days in Andover?

With an average of 15h and 24min of daylight, June has the longest days of the year in Andover, New Hampshire.

What time of the year is the hottest in Andover?

July is the warmest month in Andover, New Hampshire, exhibiting average temperatures of 79°F (26.1°C) at the peak and 57.6°F (14.2°C) at the base.

What month has the most sunshine in Andover?

The month with the most sunshine in Andover is August, with an average of 10.1h of sunshine.

What is the rainiest month in Andover?

October is the month with the most rainfall. Rain falls for 9.7 days and accumulates 1.54" (39mm) of precipitation.

What is the month with the shortest days in Andover?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

Average pressure
Andover, NH

Average pressure - Andover, NH

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Andover, NH

Average wind speed - Andover, NH

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity
Andover, NH

Average humidity - Andover, NH

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).

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Average rainfall
Andover, NH

Average rainfall - Andover, NH

The wettest month (with the highest rainfall) is October (1.54").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days
Andover, NH

Average rainfall days - Andover, NH

The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall
Andover, NH

Average snowfall - Andover, NH

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Andover, NH

Average snowfall days - Andover, NH

The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Andover, NH

Average daylight / Average sunshine - Andover, NH

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days
Andover, NH

Average sunshine days - Andover, NH

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is February (16.1 days).

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Average UV index
Andover, NH

Average UV index - Andover, NH

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average visibility
Andover, NH

Average visibility - Andover, NH

The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).

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Andover, New Hampshire, USA

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