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

Monthly weather forecast and climate
Grafton, NH

January, the same as December, in Grafton, New Hampshire, is a freezing cold winter month, with average temperature varying between 12.7°F (-10.7°C) and 25.9°F (-3.4°C). January is the coldest month, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 12.7°F (-10.7°C). Weather in January »

February, the last month of the winter, in Grafton, is also a subzero cold month, with average temperature ranging between min 14.4°F (-9.8°C) and max 28.8°F (-1.8°C). In February, the average high-temperature is essentially the same as in January - a still freezing cold 28.8°F (-1.8°C). Weather in February »

March, the first month of the spring, in Grafton, is a wintry month, with average temperature fluctuating between 22.5°F (-5.3°C) and 37°F (2.8°C). In Grafton, New Hampshire, the average high-temperature in March marginally rises, from a freezing cold 28.8°F (-1.8°C) in February, to a cold 37°F (2.8°C). Weather in March »

April in Grafton, New Hampshire, is a cool spring month, with average temperature fluctuating between 51.4°F (10.8°C) and 33.6°F (0.9°C). In Grafton, the average high-temperature significantly increases, from a cold 37°F (2.8°C) in March, to a cool 51.4°F (10.8°C). Weather in April »

May, the last month of the spring, in Grafton, is a comfortable month, with average temperature ranging between max 64.9°F (18.3°C) and min 44.4°F (6.9°C). In Grafton, New Hampshire, the average high-temperature increases, from a fresh 51.4°F (10.8°C) in April, to an enjoyable 64.9°F (18.3°C). Weather in May »

June, the first month of the summer, in Grafton, is a pleasant month, with average temperature fluctuating between 51.3°F (10.7°C) and 72.1°F (22.3°C). In Grafton, the average high-temperature marginally rises, from an enjoyable 64.9°F (18.3°C) in May, to a pleasant 72.1°F (22.3°C). Weather in June »

July in Grafton, New Hampshire, is a warm summer month, with average temperature ranging between max 79°F (26.1°C) and min 57.6°F (14.2°C). The warmest month is July, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 57.6°F (14.2°C). Weather in July »

August, the last month of the summer, in Grafton, is also a moderately hot month, with average temperature ranging between max 77.2°F (25.1°C) and min 55.9°F (13.3°C). In August, the average high-temperature is relatively the same as in July - a still warm 77.2°F (25.1°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Grafton, New Hampshire, with average temperature varying between 49.5°F (9.7°C) and 69.1°F (20.6°C). In Grafton, the average high-temperature marginally drops, from a moderately hot 77.2°F (25.1°C) in August, to an agreeable 69.1°F (20.6°C). Weather in September »

October, the same as September, in Grafton, New Hampshire, is another mild autumn month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 40.6°F (4.8°C). In Grafton, New Hampshire, the average high-temperature in October decreases, from an agreeable 69.1°F (20.6°C) in September, to a moderate 55.9°F (13.3°C). Weather in October »

The last month of the autumn, November, is another chilly month in Grafton, New Hampshire, with average temperature ranging between max 43.2°F (6.2°C) and min 30°F (-1.1°C). In Grafton, New Hampshire, the average high-temperature drops, from a mild 55.9°F (13.3°C) in October, to a chilly 43.2°F (6.2°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Grafton, New Hampshire, with average temperature varying between 31.5°F (-0.3°C) and 21°F (-6.1°C). In December, the average high-temperature decreases, from a chilly 43.2°F (6.2°C) in November, to a subzero cold 31.5°F (-0.3°C). Weather in December »

What is the coldest month in Grafton?

January is the coldest month in Grafton, New Hampshire, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 12.7°F (-10.7°C).

What is the most humid month in Grafton?

Months with the highest humidity in Grafton, New Hampshire, are January and February, with an average relative humidity of 86%.

How much does it rain in Grafton?

In Grafton, during the entire year, the rain falls for 103.3 days and collects up to 12.52" (318mm) of precipitation.

What is the driest month in Grafton?

January is the month with the least rainfall in Grafton, New Hampshire. Rain falls for 4.3 days and accumulates 0.71" (18mm) of precipitation.

When does it snow in Grafton?

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

How much does it snow in Grafton?

Throughout the year, in Grafton, New Hampshire, there are 43.2 snowfall days, and 14.49" (368mm) of snow is accumulated.

What is the snowiest month in Grafton?

February is the month with the most snowfall in Grafton. Snow falls for 10.1 days and accumulates 4.02" (102mm) of snow.

What is the month with the least sunshine in Grafton?

The month with the least sunshine is February, with an average of 4h of sunshine.

When is the lowest UV index in Grafton?

Months with the lowest UV index in Grafton, New Hampshire, are February and December, with an average maximum UV index of 1.

What is the least humid month in Grafton?

Months with the lowest humidity in Grafton, New Hampshire, are April and May, with an average relative humidity of 75%.

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

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

When it does not snow in Grafton?

In Grafton snow does not fall in June through September.

When are the longest days in Grafton?

With an average of 15.4h of daylight, June has the longest days of the year in Grafton, New Hampshire.

What is the warmest month in Grafton?

The warmest month in Grafton is July, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 57.6°F (14.2°C).

What month has the most sunshine in Grafton?

With an average of 10.1h of sunshine, August has the most sunshine of the year.

What is the rainiest month in Grafton?

The month with the most rainfall is October when the rain falls for 9.7 days and typically aggregates up to 1.54" (39mm) of precipitation.

What is the month with the shortest days in Grafton?

With an average of 9h of daylight, December has the shortest days of the year in Grafton, New Hampshire.
Average humidity - Grafton, NH
Average rainfall - Grafton, NH

The wettest month (with the highest rainfall) is October (1.54").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days - Grafton, NH

The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is February (3.4 days).

Average snowfall - Grafton, NH
Average snowfall days - Grafton, NH

The month with the highest number of snowfall days is February (10.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Grafton, 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: 10.1h).
The month with the least sunshine is February (Average sunshine: 4h).