Climate and monthly weather forecast
Derry, NH

Weather in January

January, the same as December, in Derry, New Hampshire, is a freezing cold winter month, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 30.6°F (-0.8°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 »

Weather in February

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

Weather in March

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

Weather in April

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

Weather in May

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

Weather in June

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

Weather in July

July, like June, in Derry, New Hampshire, is a moderately hot summer month, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 61°F (16.1°C). 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. In July, the average heat index is estimated at a tropical 86.9°F (30.5°C). Weather in July »

Weather in August

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

Weather in September

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

Weather in October

October, the same as September, in Derry, New Hampshire, is a moderate autumn month, with an average temperature varying between 59.2°F (15.1°C) and 44.6°F (7°C). In October, the average high-temperature decreases from a pleasant 72.1°F (22.3°C) in September to a mild 59.2°F (15.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Derry, is another chilly month, with an average temperature ranging between max 46.6°F (8.1°C) and min 33.6°F (0.9°C). In Derry, the average high-temperature in November decreases from a moderate 59.2°F (15.1°C) in October to a chilly 46.6°F (8.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Derry, New Hampshire, with temperature in the range of an average high of 36.3°F (2.4°C) and an average low of 25.3°F (-3.7°C). In December, the average high-temperature drops from a chilly 46.6°F (8.1°C) in November to a cold 36.3°F (2.4°C). Weather in December »
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FAQ

What is the coldest month in Derry?

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

What is the driest month in Derry?

January is the month with the least rainfall. Rain falls for 4.1 days and accumulates 0.75" (19mm) of precipitation.

How much does it rain in Derry?

In Derry, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation.

When does it snow in Derry?

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

How much does it snow in Derry?

In Derry, New Hampshire, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow.

When is the lowest UV index in Derry?

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

What is the most humid month in Derry?

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

What is the month with the least sunshine in Derry?

February has the least sunshine of the year, with an average of 4.6h of sunshine.

When is Daylight Saving Time (DST) in Derry?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Derry, New Hampshire, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Derry?

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

When it does not snow in Derry?

June through September are months without snowfall.

When are the longest days in Derry?

The month with the longest days is June, with an average of 15h and 17min of daylight.

When is the highest UV index in Derry?

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

What is the warmest month in Derry?

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

What month has the most sunshine in Derry?

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

What is the rainiest month in Derry?

The month with the most rainfall is October, when the rain falls for 9.4 days and typically aggregates up to 1.38" (35mm) of precipitation.

What is the snowiest month in Derry?

December is the month with the most snowfall in Derry, New Hampshire. Snow falls for 4 days and accumulates 2.99" (76mm) of snow.

What is the month with the shortest days in Derry?

The month with the shortest days is December, with an average of 9h and 5min of daylight.

Average pressure
Derry, NH

Average pressure - Derry, NH

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Derry, NH

Average wind speed - Derry, NH

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average rainfall
Derry, NH

Average rainfall - Derry, NH

The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days
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).

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Average snowfall
Derry, NH

Average snowfall - Derry, NH

The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Derry, NH

Average snowfall days - Derry, NH

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

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Average daylight / Average sunshine
Derry, NH

Average daylight / Average sunshine - Derry, NH

The month with the longest days is June (Average daylight: 15h and 17min).
The month with the shortest days is December (Average daylight: 9h and 5min).

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Derry, NH

Average sunshine days - Derry, NH

The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).

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Average UV index
Derry, NH

Average UV index - Derry, NH

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Derry, NH

Average visibility - Derry, NH

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

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