Climate and monthly weather forecast
Rochester, NH

Weather in January

January, like December, is a freezing cold winter month in Rochester, New Hampshire, with an average temperature fluctuating between 17.4°F (-8.1°C) and 29.7°F (-1.3°C). January is the coldest month, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.4°F (-8.1°C). Weather in January »

Weather in February

February, the last month of the winter in Rochester, is a wintry month, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 18.9°F (-7.3°C). In Rochester, the average high-temperature in February is relatively the same as in January - a cold 32.5°F (0.3°C). Weather in February »

Weather in March

March, the first month of the spring in Rochester, is also a wintry month, with an average temperature fluctuating between 39.7°F (4.3°C) and 26.1°F (-3.3°C). In March, the average high-temperature slightly increases from a cold 32.5°F (0.3°C) in February to a still wintry 39.7°F (4.3°C). Weather in March »

Weather in April

April is a fresh spring month in Rochester, New Hampshire, with temperature in the range of an average low of 36.3°F (2.4°C) and an average high of 52°F (11.1°C). In April, the average high-temperature rises from a cold 39.7°F (4.3°C) in March to a cool 52°F (11.1°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Rochester, New Hampshire, with an average temperature fluctuating between 63.1°F (17.3°C) and 46.2°F (7.9°C). In Rochester, the average high-temperature in May increases from a fresh 52°F (11.1°C) in April to an enjoyable 63.1°F (17.3°C). Weather in May »

Weather in June

June, the first month of the summer in Rochester, is a pleasant month, with an average temperature varying between 54°F (12.2°C) and 70.9°F (21.6°C). In June, the average high-temperature marginally rises from a comfortable 63.1°F (17.3°C) in May to an agreeable 70.9°F (21.6°C). Weather in June »

Weather in July

July in Rochester, New Hampshire, is a moderately hot summer month, with an average temperature varying between 60.3°F (15.7°C) and 78.3°F (25.7°C). The warmest month is July, with an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 60.3°F (15.7°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Rochester, New Hampshire, with an average temperature ranging between max 77.4°F (25.2°C) and min 59.4°F (15.2°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 77.4°F (25.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Rochester, is still a pleasant month, with an average temperature ranging between max 69.6°F (20.9°C) and min 52.9°F (11.6°C). In Rochester, the average high-temperature in September marginally drops from a warm 77.4°F (25.2°C) in August to a pleasant 69.6°F (20.9°C). Weather in September »

Weather in October

October, the same as September, in Rochester, New Hampshire, is a moderate autumn month, with temperature in the range of an average high of 57.9°F (14.4°C) and an average low of 44.1°F (6.7°C). In Rochester, the average high-temperature in October decreases from an agreeable 69.6°F (20.9°C) in September to a moderate 57.9°F (14.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Rochester, New Hampshire, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 46°F (7.8°C). In Rochester, the average high-temperature in November decreases from a moderate 57.9°F (14.4°C) in October to a chilly 46°F (7.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Rochester, New Hampshire, with an average temperature fluctuating between 24.6°F (-4.1°C) and 35.6°F (2°C). In Rochester, the average high-temperature in December drops from a chilly 46°F (7.8°C) in November to a cold 35.6°F (2°C). Weather in December »
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FAQ

What is the coldest month in Rochester?

January is the coldest month in Rochester, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.4°F (-8.1°C).

What is the most humid month in Rochester?

January and February, with an average relative humidity of 82%, are most humid months.

How much does it rain in Rochester?

In Rochester, New Hampshire, during the entire year, the rain falls for 143.1 days and collects up to 29.06" (738mm) of precipitation.

When does it snow in Rochester?

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

How much does it snow in Rochester?

Throughout the year, in Rochester, there are 40 snowfall days, and 27.8" (706mm) of snow is accumulated.

When is the lowest UV index in Rochester?

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

What is the month with the least sunshine in Rochester?

The month with the least sunshine in Rochester is February, with an average of 4.7h of sunshine.

When is Daylight Saving Time (DST) in Rochester?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, 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 Rochester?

April is the least humid month, with an average relative humidity of 75%.

When it does not snow in Rochester?

In Rochester, snow does not fall in June through September.

When are the longest days in Rochester?

With an average of 15h and 20min of daylight, June has the longest days of the year.

What is the warmest month in Rochester?

July is the warmest month in Rochester, with an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 60.3°F (15.7°C).

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

July and August, with an average maximum UV index of 6, are months with the highest UV index.

What month has the most sunshine in Rochester?

August has the most sunshine of the year in Rochester, with an average of 10.4h of sunshine.

What is the driest month in Rochester?

September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.5" (38mm) of precipitation.

What is the wettest month in Rochester?

The wettest months in Rochester, New Hampshire, are October and December, with an average 3.11" (79mm) of rainfall.

What is the snowiest month in Rochester?

December is the month with the most snowfall in Rochester, New Hampshire. Snow falls for 7.2 days and accumulates 6.69" (170mm) of snow.

What is the month with the shortest days in Rochester?

December has the shortest days of the year in Rochester, New Hampshire, with an average of 9h and 2min of daylight.

Average temperature
Rochester, NH

Average temperature - Rochester, NH

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure
Rochester, NH

Average pressure - Rochester, NH

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Rochester, NH

Average wind speed - Rochester, NH

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity
Rochester, NH

Average humidity - Rochester, NH

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).

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Average rainfall
Rochester, NH

Average rainfall - Rochester, NH

The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days
Rochester, NH

Average rainfall days - Rochester, NH

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall
Rochester, NH

Average snowfall - Rochester, NH

The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Rochester, NH

Average snowfall days - Rochester, NH

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Rochester, NH

Average daylight / Average sunshine - Rochester, NH

The month with the longest days is June (Average daylight: 15h and 20min).
The month with the shortest days is December (Average daylight: 9h and 2min).

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 42min).

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Average sunshine days
Rochester, NH

Average sunshine days - Rochester, NH

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index
Rochester, NH

Average UV index - Rochester, NH

The months with the highest UV index are 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
Rochester, NH

Average visibility - Rochester, NH

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

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