Climate and monthly weather forecast
Thornton, NH

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Weather in January

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

Weather in February

The last month of the winter, February, is another freezing cold month in Thornton, New Hampshire, with an average temperature ranging between min 11.5°F (-11.4°C) and max 25.2°F (-3.8°C). As Thornton welcomes February, the average high-temperature is noted at a still subzero cold 25.2°F (-3.8°C), closely aligning with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Thornton, New Hampshire, with an average temperature fluctuating between 19.4°F (-7°C) and 33.4°F (0.8°C). Observing a slight rise in March, the average high-temperature shifts from February's subzero cold 25.2°F (-3.8°C) to a cold 33.4°F (0.8°C). Weather in March »

Weather in April

April is a chilly spring month in Thornton, New Hampshire, with temperature in the range of an average low of 30.2°F (-1°C) and an average high of 46.6°F (8.1°C). With the onset of April, Thornton sees a temperature rise, with the average high-temperature moving from March's cold 33.4°F (0.8°C) to a frosty 46.6°F (8.1°C). Weather in April »

Weather in May

May, the last month of the spring in Thornton, is a comfortable month, with an average temperature ranging between min 41.5°F (5.3°C) and max 61.3°F (16.3°C). Thornton's transition into May is marked by a clear temperature shift, advancing from a chilly 46.6°F (8.1°C) in April to an enjoyable 61.3°F (16.3°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Thornton, New Hampshire, with an average temperature fluctuating between 48.6°F (9.2°C) and 68.5°F (20.3°C). The shift into June brings a slight increase in the average high-temperature, moving from an enjoyable 61.3°F (16.3°C) in May to a pleasant 68.5°F (20.3°C). Weather in June »

Weather in July

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

Weather in August

The last month of the summer, August, is also an agreeable month in Thornton, New Hampshire, with an average temperature fluctuating between 73°F (22.8°C) and 52.9°F (11.6°C). August's advent notes a subtle adjustment in average high-temperature to an agreeable 73°F (22.8°C) from July. Weather in August »

Weather in September

September, the first month of the autumn in Thornton, is also an enjoyable month, with an average temperature varying between 46.6°F (8.1°C) and 65.8°F (18.8°C). Thornton's progression into September involves a gentle drop in the average high-temperature, from a pleasant 73°F (22.8°C) in August to a refreshing 65.8°F (18.8°C). Weather in September »

Weather in October

October, the same as September, is a cool autumn month in Thornton, New Hampshire, with an average temperature fluctuating between 51.8°F (11°C) and 37.9°F (3.3°C). As September transitions to October, the average high-temperature falls from a refreshing 65.8°F (18.8°C) to a cool 51.8°F (11°C). Weather in October »

Weather in November

November, the last month of the autumn in Thornton, is another cold month, with an average temperature ranging between min 27°F (-2.8°C) and max 39.2°F (4°C). As November commences, the average high-temperature shows a reduction, transitioning from a cool 51.8°F (11°C) in October to a wintry 39.2°F (4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Thornton, New Hampshire, with an average temperature varying 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 »
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Frequently asked questions

What month is the coldest in Thornton?

Thornton witnesses the coldest weather in January, with temperatures averaging a high of 22.5°F (-5.3°C) and a low of 9.7°F (-12.4°C).

What are the most humid months in Thornton?

January and February, with an average relative humidity of 89%, are most humid months in Thornton.

How much does it rain in Thornton?

Throughout the year, there are 126 rainfall days, and 13.66" (347mm) of precipitation is accumulated.

When does it snow in Thornton?

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

How much does it snow in Thornton?

Throughout the year, in Thornton, there are 91.5 snowfall days, and 21.85" (555mm) of snow is accumulated.

What is the month with 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, New Hampshire. 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.

When is Daylight Saving Time (DST) in Thornton?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month in Thornton?

April is the month with the most rainfall. Rain falls for 11.7 days and accumulates 1.5" (38mm) of precipitation.

What is the least humid month in Thornton?

May is the least humid month, 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?

June has the longest days of the year, with an average of 15h and 24min of daylight.

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

The months with the highest UV index in Thornton are June through August, with an average maximum UV index of 5.

What part of the year is the hottest in Thornton?

In Thornton, temperatures reach their average annual highs in July, measuring 75°F (23.9°C) and a minimum average of 54.3°F (12.4°C).

What month has the most sunshine in Thornton?

The month with the most sunshine is August, with an average of 9.3h of sunshine.

What is the driest month in Thornton?

September is the month with the least rainfall in Thornton, New Hampshire. 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, with an average of 9h and 0min of daylight.

Average pressure
Thornton, NH

Average pressure - Thornton, NH

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

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Average wind speed
Thornton, NH

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).

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Average humidity
Thornton, NH

Average humidity - Thornton, NH

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (78%).

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Average rainfall
Thornton, NH

Average rainfall - Thornton, NH

The wettest month (with the highest rainfall) is April (1.5").
The driest month (with the least rainfall) is September (0.79").

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Average rainfall days
Thornton, NH

Average rainfall days - Thornton, NH

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

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Average snowfall
Thornton, NH

Average snowfall - Thornton, NH

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Thornton, NH

Average snowfall days - Thornton, NH

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

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Average daylight / Average sunshine
Thornton, NH

Average daylight / Average sunshine - Thornton, NH

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).

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Average sunshine days
Thornton, NH

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).

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Average UV index
Thornton, NH

Average UV index - Thornton, NH

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

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Average visibility
Thornton, NH

Average visibility - Thornton, NH

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

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Thornton, New Hampshire, USA

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