Monthly weather forecast and climate
Windham, NH

January, the same as December, is a wintry winter month in Windham, New Hampshire, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 32.2°F (0.1°C). The coldest month is January, with an average high-temperature of 32.2°F (0.1°C) and an average low-temperature of 20.3°F (-6.5°C). Weather in January »

The last month of the winter, February, is also a wintry month in Windham, New Hampshire, with average temperature ranging between min 21.4°F (-5.9°C) and max 34.9°F (1.6°C). In Windham, New Hampshire, the average high-temperature is practically the same as in January - a still cold 34.9°F (1.6°C). Weather in February »

March, the first month of the spring, in Windham, is still a cold month, with temperature in the range of an average high of 42.1°F (5.6°C) and an average low of 28.6°F (-1.9°C). In March, the average high-temperature slightly increases, from a cold 34.9°F (1.6°C) in February, to a still wintry 42.1°F (5.6°C). Weather in March »

April in Windham, New Hampshire, is a fresh spring month, with average temperature ranging between min 38.8°F (3.8°C) and max 54.7°F (12.6°C). In Windham, the average high-temperature in April rises, from a wintry 42.1°F (5.6°C) in March, to a cool 54.7°F (12.6°C). Weather in April »

The last month of the spring, May, is a comfortable month in Windham, New Hampshire, with average temperature varying between 66°F (18.9°C) and 48.7°F (9.3°C). In May, the average high-temperature increases, from a fresh 54.7°F (12.6°C) in April, to a comfortable 66°F (18.9°C). Weather in May »

June, the first month of the summer, in Windham, is a warm month, with average temperature varying between 73.9°F (23.3°C) and 56.1°F (13.4°C). In Windham, the average high-temperature marginally rises, from a comfortable 66°F (18.9°C) in May, to a moderately hot 73.9°F (23.3°C). Weather in June »

July, like June, in Windham, New Hampshire, is a moderately hot summer month, with average temperature fluctuating between 63°F (17.2°C) and 81.7°F (27.6°C). The warmest month is July, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 63°F (17.2°C). The average heat index in July is evaluated at a tropical 86.7°F (30.4°C). Weather in July »

The last month of the summer, August, is another warm month in Windham, New Hampshire, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 61.9°F (16.6°C). In Windham, the average high-temperature in August is essentially the same as in July - a still warm 79.9°F (26.6°C). Weather in August »

September, the first month of the autumn, in Windham, is still a pleasant month, with average temperature varying between 55.8°F (13.2°C) and 72.3°F (22.4°C). In Windham, the average high-temperature marginally drops, from a moderately hot 79.9°F (26.6°C) in August, to a pleasant 72.3°F (22.4°C). Weather in September »

October, like September, is a moderate autumn month in Windham, New Hampshire, with average temperature varying between 60.1°F (15.6°C) and 46.2°F (7.9°C). In October, the average high-temperature decreases, from an agreeable 72.3°F (22.4°C) in September, to a moderate 60.1°F (15.6°C). Weather in October »

November, the last month of the autumn, in Windham, is another chilly month, with average temperature varying between 48.2°F (9°C) and 35.4°F (1.9°C). In Windham, the average high-temperature drops, from a mild 60.1°F (15.6°C) in October, to a frosty 48.2°F (9°C). Weather in November »

December, the first month of the winter, in Windham, is also a wintry month, with average temperature fluctuating between 37.9°F (3.3°C) and 27.3°F (-2.6°C). In Windham, the average high-temperature decreases, from a chilly 48.2°F (9°C) in November, to a cold 37.9°F (3.3°C). Weather in December »

What is the coldest month in Windham?

The coldest month in Windham, New Hampshire, is January, with an average high-temperature of 32.2°F (0.1°C) and an average low-temperature of 20.3°F (-6.5°C).

How much does it rain in Windham?

In Windham, New Hampshire, during the entire year, the rain falls for 144 days and collects up to 26.97" (685mm) of precipitation.

When does it snow in Windham?

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

How many days does it snow in Windham?

Throughout the year, in Windham, there are 31.9 snowfall days, and 20.94" (532mm) of snow is accumulated.

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

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

What is the most humid month in Windham?

The most humid month is February, with an average relative humidity of 79%.

What is the snowiest month in Windham?

The month with the most snowfall is February when snow falls for 7.7 days and typically aggregates up to 5.87" (149mm) of snow.

What is the month with the least sunshine in Windham?

With an average of 4.7h of sunshine, February has the least sunshine of the year.

What is the least humid month in Windham?

With an average relative humidity of 71%, April is the least humid month in Windham, New Hampshire.

When it does not snow in Windham?

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

When are the longest days in Windham?

June has the longest days of the year in Windham, with an average of 15.3h of daylight.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Windham, New Hampshire.

What is the warmest month in Windham?

The warmest month in Windham is July, with an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 63°F (17.2°C).

What month has the most sunshine in Windham?

The month with the most sunshine is August, with an average of 10.6h of sunshine.

What is the driest month in Windham?

The month with the least rainfall is September when the rain falls for 10.6 days and typically collects 1.3" (33mm) of precipitation.

What is the wettest month in Windham?

December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 2.87" (73mm) of precipitation.

What is the month with the shortest days in Windham?

December has the shortest days of the year, with an average of 9.1h of daylight.
Average temperature - Windham, NH
Average pressure - Windham, NH

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed - Windham, NH

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average rainfall - Windham, NH

The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days - Windham, NH

The month with the highest number of rainy days is May (15.9 days).
Months with the least rainy days are January and February (7.6 days).

Average snowfall - Windham, NH
Average snowfall days - Windham, NH

The month with the highest number of snowfall days is January (8.5 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Windham, NH

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

The month with the most sunshine is August (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days - Windham, NH

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is May (13.5 days).

Average UV index - Windham, NH
Average visibility - Windham, NH

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