Charlestown
New Hampshire, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Charlestown, NH

January, like December, is another subzero cold winter month in Charlestown, New Hampshire, with temperature in the range of an average low of 14.5°F (-9.7°C) and an average high of 27.5°F (-2.5°C). January is the coldest month, with an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 14.5°F (-9.7°C). Weather in January »

February, the last month of the winter, in Charlestown, is also a subzero cold month, with average temperature fluctuating between 15.4°F (-9.2°C) and 30.2°F (-1°C). In Charlestown, New Hampshire, the average high-temperature in February is relatively the same as in January - a still subzero cold 30.2°F (-1°C). Weather in February »

March, the first month of the spring, in Charlestown, is a cold month, with average temperature varying between 38.7°F (3.7°C) and 23.5°F (-4.7°C). In Charlestown, the average high-temperature slightly increases, from a subzero cold 30.2°F (-1°C) in February, to a wintry 38.7°F (3.7°C). Weather in March »

April in Charlestown, New Hampshire, is a cool spring month, with average temperature ranging between max 52°F (11.1°C) and min 34.3°F (1.3°C). In April, the average high-temperature increases, from a cold 38.7°F (3.7°C) in March, to a cool 52°F (11.1°C). Weather in April »

The last month of the spring, May, is a comfortable month in Charlestown, New Hampshire, with average temperature fluctuating between 45.1°F (7.3°C) and 65.8°F (18.8°C). In Charlestown, New Hampshire, the average high-temperature in May increases, from a fresh 52°F (11.1°C) in April, to a comfortable 65.8°F (18.8°C). Weather in May »

June, the first month of the summer, in Charlestown, is a pleasant month, with average temperature varying between 51.6°F (10.9°C) and 73°F (22.8°C). In June, the average high-temperature marginally rises, from an enjoyable 65.8°F (18.8°C) in May, to an agreeable 73°F (22.8°C). Weather in June »

July is a warm summer month in Charlestown, New Hampshire, with average temperature varying between 57.7°F (14.3°C) and 79.7°F (26.5°C). With an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 57.7°F (14.3°C), July is the warmest month. Weather in July »

August, the last month of the summer, in Charlestown, is also a moderately hot month, with average temperature ranging between min 55.9°F (13.3°C) and max 77.9°F (25.5°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 77.9°F (25.5°C). Weather in August »

The first month of the autumn, September, is still a pleasant month in Charlestown, New Hampshire, with average temperature fluctuating between 50.4°F (10.2°C) and 70.5°F (21.4°C). In Charlestown, the average high-temperature slightly decreases, from a warm 77.9°F (25.5°C) in August, to an agreeable 70.5°F (21.4°C). Weather in September »

October, like September, is a moderate autumn month in Charlestown, New Hampshire, with average temperature varying between 56.7°F (13.7°C) and 41.5°F (5.3°C). In October, the average high-temperature decreases, from an agreeable 70.5°F (21.4°C) in September, to a mild 56.7°F (13.7°C). Weather in October »

The last month of the autumn, November, is another chilly month in Charlestown, New Hampshire, with average temperature fluctuating between 30.9°F (-0.6°C) and 44.1°F (6.7°C). In Charlestown, New Hampshire, the average high-temperature drops, from a mild 56.7°F (13.7°C) in October, to a frosty 44.1°F (6.7°C). Weather in November »

December, the first month of the winter, in Charlestown, is still a cold month, with average temperature ranging between max 32.9°F (0.5°C) and min 22.3°F (-5.4°C). In December, the average high-temperature drops, from a frosty 44.1°F (6.7°C) in November, to a cold 32.9°F (0.5°C). Weather in December »

What is the coldest month in Charlestown?

With an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 14.5°F (-9.7°C), January is the coldest month in Charlestown, New Hampshire.

How many days does it rain in Charlestown?

In Charlestown, New Hampshire, during the entire year, the rain falls for 113.5 days and collects up to 16.77" (426mm) of precipitation.

What is the driest month in Charlestown?

Months with the least rainfall in Charlestown are January and March Rain falls for 4.5 days and accumulates 1.06" (27mm) of rain.

When does it snow in Charlestown?

Months with snowfall in Charlestown, New Hampshire, are January through May, October through December.

How much does it snow in Charlestown?

In Charlestown, during the entire year, snow falls for 31 days, and aggregates up to 16.22" (412mm) of snow.

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

Months with the lowest UV index in Charlestown, New Hampshire, are January through March, October through December, with an average maximum UV index of 2.

What is the most humid month in Charlestown?

February is the most humid month in Charlestown, with an average relative humidity of 85%.

When does it snow the most in Charlestown?

The month with the most snowfall is February when snow falls for 7.9 days and typically aggregates up to 4.69" (119mm) of snow.

What is the month with the least sunshine in Charlestown?

The month with the least sunshine is February, with an average of 4.4h of sunshine.

What is the least humid month in Charlestown?

With an average relative humidity of 74%, April is the least humid month.

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

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

When it does not snow in Charlestown?

In Charlestown, New Hampshire, snow does not fall in June through September.

When are the longest days in Charlestown?

The month with the longest days in Charlestown is June, with an average of 15.3h of daylight.

What is the warmest month in Charlestown?

With an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 57.7°F (14.3°C), July is the warmest month.

What month has the most sunshine in Charlestown?

The month with the most sunshine in Charlestown, New Hampshire, is August, with an average of 10.3h of sunshine.

What is the rainiest month in Charlestown?

The month with the most rainfall in Charlestown is October when the rain falls for 11.4 days and typically aggregates up to 1.77" (45mm) of precipitation.

What is the month with the shortest days in Charlestown?

With an average of 9h of daylight, December has the shortest days of the year in Charlestown.
Average temperature - Charlestown, NH
Average rainfall - Charlestown, NH

The wettest month (with the highest rainfall) is October (45mm).
The driest months (with the least rainfall) are January and March (27mm).

Average rainfall days - Charlestown, NH

The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (4.5 days).

Average snowfall - Charlestown, NH
Average snowfall days - Charlestown, NH

The month with the highest number of snowfall days is February (7.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Charlestown, NH

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9h).

The month with the most sunshine is August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.4h).

Average UV index - Charlestown, NH

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).