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

Monthly weather forecast and climate
Nashua, NH

The arched Main Street Bridge crossing over the iconic Nashua River in New Hampshire, cars, trees, and buildings on the other side, rain clouds looming
The arched Main Street Bridge crossing over the iconic Nashua River in New Hampshire, cars, trees, and buildings on the other side, rain clouds looming
January, the same as December, in Nashua, New Hampshire, is another subzero cold winter month, with average temperature fluctuating between 30.9°F (-0.6°C) and 18°F (-7.8°C). With an average high-temperature of 30.9°F (-0.6°C) and an average low-temperature of 18°F (-7.8°C), January is the coldest month. Weather in January »

The last month of the winter, February, is a cold month in Nashua, New Hampshire, with average temperature varying between 18.9°F (-7.3°C) and 33.8°F (1°C). In February, the average high-temperature is relatively the same as in January - a wintry 33.8°F (1°C). Weather in February »

March, the first month of the spring, in Nashua, is still a cold month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 41.5°F (5.3°C). In March, the average high-temperature slightly increases, from 33.8°F (1°C) in February, to a still cold 41.5°F (5.3°C). Weather in March »

April is a fresh spring month in Nashua, New Hampshire, with average temperature fluctuating between 37.6°F (3.1°C) and 55.2°F (12.9°C). In Nashua, the average high-temperature in April increases, from a cold 41.5°F (5.3°C) in March, to a fresh 55.2°F (12.9°C). Weather in April »

The last month of the spring, May, is a comfortable month in Nashua, New Hampshire, with average temperature varying between 67.3°F (19.6°C) and 47.5°F (8.6°C). In May, the average high-temperature rises, from a cool 55.2°F (12.9°C) in April, to an enjoyable 67.3°F (19.6°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Nashua, New Hampshire, with average temperature fluctuating between 54.7°F (12.6°C) and 75°F (23.9°C). In Nashua, the average high-temperature marginally rises, from a comfortable 67.3°F (19.6°C) in May, to a moderately hot 75°F (23.9°C). Weather in June »

July, the same as June, is a moderately hot summer month in Nashua, New Hampshire, with average temperature ranging between max 82°F (27.8°C) and min 61.5°F (16.4°C). July is the warmest month, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 61.5°F (16.4°C). In July, the average heat index is evaluated at a tropical 87.4°F (30.8°C). Weather in July »

August, the last month of the summer, in Nashua, is another warm month, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 80.2°F (26.8°C). In Nashua, the average high-temperature is relatively the same as in July - a still moderately hot 80.2°F (26.8°C). Weather in August »

September, the first month of the autumn, in Nashua, is still a pleasant month, with average temperature varying between 72.5°F (22.5°C) and 53.8°F (12.1°C). In Nashua, the average high-temperature slightly decreases, from a moderately hot 80.2°F (26.8°C) in August, to an agreeable 72.5°F (22.5°C). Weather in September »

October, like September, is a moderate autumn month in Nashua, New Hampshire, with average temperature varying between 59.5°F (15.3°C) and 44.4°F (6.9°C). In Nashua, New Hampshire, the average high-temperature decreases, from a pleasant 72.5°F (22.5°C) in September, to a mild 59.5°F (15.3°C). Weather in October »

November, the last month of the autumn, in Nashua, is another chilly month, with average temperature varying between 34°F (1.1°C) and 47.3°F (8.5°C). In November, the average high-temperature drops, from a mild 59.5°F (15.3°C) in October, to a frosty 47.3°F (8.5°C). Weather in November »

The first month of the winter, December, is also a wintry month in Nashua, New Hampshire, with average temperature varying between 36.5°F (2.5°C) and 25.7°F (-3.5°C). In December, the average high-temperature drops, from a chilly 47.3°F (8.5°C) in November, to a wintry 36.5°F (2.5°C). Weather in December »

What is the coldest month in Nashua?

January is the coldest month, with an average high-temperature of 30.9°F (-0.6°C) and an average low-temperature of 18°F (-7.8°C).

How much does it rain in Nashua?

In Nashua, New Hampshire, during the entire year, the rain falls for 91.2 days and collects up to 7.24" (184mm) of precipitation.

When does it snow in Nashua?

Months with snowfall are January through May, October through December.

How much does it snow in Nashua?

In Nashua, New Hampshire, during the entire year, snow falls for 25 days, and aggregates up to 5.91" (150mm) of snow.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Nashua.

What is the most humid month in Nashua?

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

What is the snowiest month in Nashua?

Months with the most snowfall are February and December, with an average 1.26" (32mm) of accumulated snow.

What is the month with the least sunshine in Nashua?

The month with the least sunshine is February, with an average of 4.6h of sunshine.

What is the least humid month in Nashua?

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

When it does not snow in Nashua?

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

When are the longest days in Nashua?

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

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

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

What is the warmest month in Nashua?

The warmest month in Nashua, New Hampshire, is July, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 61.5°F (16.4°C).

What month has the most sunshine in Nashua?

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

What is the driest month in Nashua?

September is the month with the least rainfall in Nashua, New Hampshire. Rain falls for 7 days and accumulates 0.28" (7mm) of precipitation.

What is the rainiest month in Nashua?

The month with the most rainfall is November when the rain falls for 5.7 days and typically aggregates up to 0.79" (20mm) of precipitation.

What is the month with the shortest days in Nashua?

With an average of 9.1h of daylight, December has the shortest days of the year.
Average rainfall - Nashua, NH

The wettest month (with the highest rainfall) is November (0.79").
The driest month (with the lowest rainfall) is September (0.28").

Average rainfall days - Nashua, NH

The month with the highest number of rainy days is June (10.4 days).
The month with the lowest number of rainy days is January (3.5 days).

Average snowfall - Nashua, NH

Months with the highest snowfall are February and December (1.26").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days - Nashua, NH

The month with the highest number of snowfall days is February (6.7 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Nashua, NH
Average UV index - Nashua, NH