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

Monthly weather forecast and climate
Derry, NH

January, the same as December, in Derry, New Hampshire, is another subzero cold winter month, with average temperature fluctuating between 30.6°F (-0.8°C) and 18°F (-7.8°C). January is the coldest month, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 18°F (-7.8°C). Weather in January »

The last month of the winter, February, is a wintry month in Derry, New Hampshire, with average temperature varying between 33.3°F (0.7°C) and 18.9°F (-7.3°C). In Derry, the average high-temperature in February is essentially the same as in January - a cold 33.3°F (0.7°C). Weather in February »

March, the first month of the spring, in Derry, is still a cold month, with average temperature ranging between min 26.4°F (-3.1°C) and max 41.2°F (5.1°C). In March, the average high-temperature marginally rises, from 33.3°F (0.7°C) in February, to a still cold 41.2°F (5.1°C). Weather in March »

April in Derry, New Hampshire, is a cool spring month, with average temperature varying between 37.4°F (3°C) and 55°F (12.8°C). In Derry, New Hampshire, the average high-temperature in April increases, from a wintry 41.2°F (5.1°C) in March, to a fresh 55°F (12.8°C). Weather in April »

May, the last month of the spring, in Derry, is an enjoyable month, with average temperature fluctuating between 66.9°F (19.4°C) and 47.1°F (8.4°C). In Derry, New Hampshire, the average high-temperature rises, from a fresh 55°F (12.8°C) in April, to a comfortable 66.9°F (19.4°C). Weather in May »

The first month of the summer, June, is a warm month in Derry, New Hampshire, with average temperature fluctuating between 74.5°F (23.6°C) and 54.5°F (12.5°C). In June, the average high-temperature marginally rises, from an enjoyable 66.9°F (19.4°C) in May, to a warm 74.5°F (23.6°C). Weather in June »

July, like June, in Derry, New Hampshire, is another warm summer month, with average temperature ranging between min 61°F (16.1°C) and max 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 61°F (16.1°C). The average heat index is calculated to a hot 86.9°F (30.5°C). Weather in July »

August, the last month of the summer, in Derry, is another warm month, with average temperature fluctuating between 80.1°F (26.7°C) and 59.9°F (15.5°C). In August, the average high-temperature is essentially the same as in July - a still warm 80.1°F (26.7°C). Weather in August »

The first month of the autumn, September, is still a pleasant month in Derry, New Hampshire, with average temperature fluctuating between 72.1°F (22.3°C) and 54°F (12.2°C). In Derry, the average high-temperature slightly decreases, from a warm 80.1°F (26.7°C) in August, to an agreeable 72.1°F (22.3°C). Weather in September »

October, like September, is another mild autumn month in Derry, New Hampshire, with temperature in the range of an average high of 59.2°F (15.1°C) and an average low of 44.6°F (7°C). In October, the average high-temperature drops, from an agreeable 72.1°F (22.3°C) in September, to a moderate 59.2°F (15.1°C). Weather in October »

November, the last month of the autumn, in Derry, is another chilly month, with average temperature fluctuating between 46.6°F (8.1°C) and 33.6°F (0.9°C). In November, the average high-temperature drops, from a mild 59.2°F (15.1°C) in October, to a frosty 46.6°F (8.1°C). Weather in November »

December, the first month of the winter, in Derry, is still a cold month, with average temperature varying between 25.3°F (-3.7°C) and 36.3°F (2.4°C). In December, the average high-temperature decreases, from a frosty 46.6°F (8.1°C) in November, to a wintry 36.3°F (2.4°C). Weather in December »

What is the coldest month in Derry?

The coldest month in Derry, New Hampshire, is January, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 18°F (-7.8°C).

How much does it rain in Derry?

Throughout the year, there are 104.4 rainfall days, and 12.95" (329mm) of precipitation is accumulated.

What is the driest month in Derry?

The month with the least rainfall is January when the rain falls for 4.1 days and typically collects 0.75" (19mm) of precipitation.

When does it snow in Derry?

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

How much does it snow in Derry?

Throughout the year, in Derry, New Hampshire, there are 26.1 snowfall days, and 11.54" (293mm) of snow is accumulated.

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

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

What is the most humid month in Derry?

With an average relative humidity of 81%, February is the most humid month.

What is the month with the least sunshine in Derry?

With an average of 4.6h of sunshine, February has the least sunshine of the year in Derry.

What is the least humid month in Derry?

April is the least humid month, with an average relative humidity of 72%.

When it does not snow in Derry?

June through September are months without snowfall in Derry.

When are the longest days in Derry?

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

What is the month with the highest UV index in Derry?

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

What is the warmest month in Derry?

With an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 61°F (16.1°C), July is the warmest month.

What month has the most sunshine in Derry?

With an average of 10.4h of sunshine, August has the most sunshine of the year in Derry, New Hampshire.

What is the wettest month in Derry?

October is the month with the most rainfall in Derry, New Hampshire. Rain falls for 9.4 days and accumulates 1.38" (35mm) of precipitation.

When does it snow the most in Derry?

The month with the most snowfall in Derry, New Hampshire, is December when snow falls for 4 days and typically aggregates up to 2.99" (76mm) of snow.

What is the month with the shortest days in Derry?

December has the shortest days of the year in Derry, New Hampshire, with an average of 9.1h of daylight.
Average rainfall - Derry, NH
Average rainfall days - Derry, NH

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).

Average snowfall - Derry, NH
Average snowfall days - Derry, NH

The month with the highest number of snowfall days is January (7.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Derry, 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: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average UV index - Derry, NH