Monthly weather forecast and climate
Thornton, NH

January, like December, is another subzero cold winter month in Thornton, New Hampshire, with average temperature varying between 9.7°F (-12.4°C) and 22.5°F (-5.3°C). With an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 9.7°F (-12.4°C), January is the coldest month. Weather in January »

The last month of the winter, February, is also a subzero cold month in Thornton, New Hampshire, with average temperature ranging between max 25.2°F (-3.8°C) and min 11.5°F (-11.4°C). In Thornton, New Hampshire, the average high-temperature is practically the same as in January - a still freezing cold 25.2°F (-3.8°C). Weather in February »

March, the first month of the spring, in Thornton, is a cold month, with average temperature varying between 19.4°F (-7°C) and 33.4°F (0.8°C). In Thornton, New Hampshire, the average high-temperature slightly increases, from a subzero cold 25.2°F (-3.8°C) in February, to a cold 33.4°F (0.8°C). Weather in March »

April in Thornton, New Hampshire, is a chilly spring month, with average temperature ranging between min 30.2°F (-1°C) and max 46.6°F (8.1°C). In Thornton, the average high-temperature increases, from a cold 33.4°F (0.8°C) in March, to a chilly 46.6°F (8.1°C). Weather in April »

May, the last month of the spring, in Thornton, is a comfortable month, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 41.5°F (5.3°C). In Thornton, the average high-temperature increases considerably, from a frosty 46.6°F (8.1°C) in April, to a comfortable 61.3°F (16.3°C). Weather in May »

June, the first month of the summer, in Thornton, is a pleasant month, with average temperature ranging between min 48.6°F (9.2°C) and max 68.5°F (20.3°C). In Thornton, the average high-temperature slightly increases, from a comfortable 61.3°F (16.3°C) in May, to an agreeable 68.5°F (20.3°C). Weather in June »

July in Thornton, New Hampshire, is a warm summer month, with average temperature fluctuating between 75°F (23.9°C) and 54.3°F (12.4°C). July is the warmest month, with an average high-temperature of 75°F (23.9°C) and an average low-temperature of 54.3°F (12.4°C). Weather in July »

August, the last month of the summer, in Thornton, is also an agreeable month, with average temperature ranging between max 73°F (22.8°C) and min 52.9°F (11.6°C). In Thornton, New Hampshire, the average high-temperature in August is relatively the same as in July - a pleasant 73°F (22.8°C). Weather in August »

The first month of the autumn, September, is still a comfortable month in Thornton, New Hampshire, with average temperature ranging between max 65.8°F (18.8°C) and min 46.6°F (8.1°C). In September, the average high-temperature slightly decreases, from an agreeable 73°F (22.8°C) in August, to a comfortable 65.8°F (18.8°C). Weather in September »

October, the same as September, is another fresh autumn month in Thornton, New Hampshire, with average temperature ranging between min 37.9°F (3.3°C) and max 51.8°F (11°C). In Thornton, the average high-temperature drops, from a comfortable 65.8°F (18.8°C) in September, to a cool 51.8°F (11°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Thornton, New Hampshire, with average temperature varying between 27°F (-2.8°C) and 39.2°F (4°C). In November, the average high-temperature drops, from a cool 51.8°F (11°C) in October, to a wintry 39.2°F (4°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Thornton, New Hampshire, with average temperature fluctuating between 27.5°F (-2.5°C) and 18.1°F (-7.7°C). In Thornton, the average high-temperature in December decreases, from a wintry 39.2°F (4°C) in November, to a freezing cold 27.5°F (-2.5°C). Weather in December »

What is the coldest month in Thornton?

January is the coldest month in Thornton, New Hampshire, with an average high-temperature of 22.5°F (-5.3°C) and an average low-temperature of 9.7°F (-12.4°C).

What are the most humid months in Thornton?

Months with the highest humidity in Thornton, New Hampshire, are January and February, with an average relative humidity of 89%.

How much does it rain in Thornton?

In Thornton, during the entire year, the rain falls for 126 days and collects up to 13.66" (347mm) of precipitation.

When does it snow in Thornton?

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

How much does it snow in Thornton?

In Thornton, New Hampshire, during the entire year, snow falls for 91.5 days, and aggregates up to 21.85" (555mm) of snow.

When is the lowest UV index in Thornton?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the snowiest month in Thornton?

February is the month with the most snowfall in Thornton. Snow falls for 18.3 days and accumulates 4.45" (113mm) of snow.

What is the month with the least sunshine in Thornton?

The month with the least sunshine in Thornton, New Hampshire, is February, with an average of 2.9h of sunshine.

What is the wettest month in Thornton?

The month with the most rainfall in Thornton, New Hampshire, is April when the rain falls for 11.7 days and typically aggregates up to 1.5" (38mm) of precipitation.

What is the least humid month in Thornton?

The least humid month in Thornton is May, with an average relative humidity of 78%.

When it does not snow in Thornton?

June through September are months without snowfall.

When are the longest days in Thornton?

The month with the longest days in Thornton, New Hampshire, is June, with an average of 15.4h of daylight.

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

Months with the highest UV index are June through August, with an average maximum UV index of 5.

What is the warmest month in Thornton?

July is the warmest month in Thornton, New Hampshire, with an average high-temperature of 75°F (23.9°C) and an average low-temperature of 54.3°F (12.4°C).

What month has the most sunshine in Thornton?

With an average of 9.3h of sunshine, August has the most sunshine of the year.

What is the driest month in Thornton?

September is the month with the least rainfall in Thornton. Rain falls for 10 days and accumulates 0.79" (20mm) of precipitation.

What is the month with the shortest days in Thornton?

December has the shortest days of the year in Thornton, New Hampshire, with an average of 9h of daylight.
Average pressure - Thornton, NH

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.91").

Average wind speed - Thornton, NH

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity - Thornton, NH
Average rainfall - Thornton, NH
Average rainfall days - Thornton, NH

The month with the highest number of rainy days is July (15.5 days).
Months with the least rainy days are January and February (5.3 days).

Average snowfall - Thornton, NH
Average snowfall days - Thornton, NH

The month with the highest number of snowfall days is February (18.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Thornton, NH

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

The month with the most sunshine is August (Average sunshine: 9.3h).
The month with the least sunshine is February (Average sunshine: 2.9h).

Average sunshine days - Thornton, NH

The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is February (10.2 days).

Average UV index - Thornton, NH
Average visibility - Thornton, NH

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).