Climate and monthly weather forecast
Bethlehem, NH

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Weather in January

January, the same as December, in Bethlehem, New Hampshire, is a freezing cold winter month, with an average temperature ranging between min 9.3°F (-12.6°C) and max 22.5°F (-5.3°C). January, known for its average high temperature of 22.5°F (-5.3°C) and an average low temperature of 9.3°F (-12.6°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Bethlehem, is also a subzero cold month, with an average temperature varying between 11.1°F (-11.6°C) and 25.3°F (-3.7°C). The transition from January to February sees an average high-temperature of a still freezing cold 25.3°F (-3.7°C), indicating a minor variance from the prior month. Weather in February »

Weather in March

March, the first month of the spring in Bethlehem, is a cold month, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 18.9°F (-7.3°C). As Bethlehem enters March, the average high-temperature marginally increases from the a subzero cold 25.3°F (-3.7°C) of February to an icy 33.6°F (0.9°C). Weather in March »

Weather in April

April in Bethlehem, New Hampshire, is a frosty spring month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 46.9°F (8.3°C). The beginning of April marks a shift in the average high-temperature, moving from March's cold 33.6°F (0.9°C) to a chilly 46.9°F (8.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Bethlehem, New Hampshire, with an average temperature varying between 41.9°F (5.5°C) and 62.6°F (17°C). May signals a considerable rise in Bethlehem's average high-temperature, advancing from a chilly 46.9°F (8.3°C) in April to a refreshing 62.6°F (17°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Bethlehem, New Hampshire, with an average temperature ranging between max 69.4°F (20.8°C) and min 48.4°F (9.1°C). June's onset witnesses a minor shift in the average high-temperature, moving from an enjoyable 62.6°F (17°C) in May to a pleasant 69.4°F (20.8°C). Weather in June »

Weather in July

July is a warm summer month in Bethlehem, New Hampshire, with an average temperature fluctuating between 54.1°F (12.3°C) and 76.3°F (24.6°C). July registers as the month with the highest average temperatures, reaching 76.3°F (24.6°C) at its peak and 54.1°F (12.3°C) at the lowest. Weather in July »

Weather in August

August, the last month of the summer in Bethlehem, is also a moderately hot month, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 74.1°F (23.4°C). August is marked by an average high-temperature of a still moderately hot 74.1°F (23.4°C), almost identical to the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in Bethlehem, New Hampshire, with an average temperature fluctuating between 46.8°F (8.2°C) and 66.9°F (19.4°C). September's onset brings a negligible change in high-temperatures, falling from a moderately hot 74.1°F (23.4°C) in August to a refreshing 66.9°F (19.4°C). Weather in September »

Weather in October

October, the same as September, is a cool autumn month in Bethlehem, New Hampshire, with an average temperature ranging between max 52.9°F (11.6°C) and min 38.5°F (3.6°C). The transition into October involves a decrease in the average high-temperature, falling from a comfortable 66.9°F (19.4°C) in September to a fresh 52.9°F (11.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Bethlehem, is also a wintry month, with an average temperature ranging between max 39.4°F (4.1°C) and min 27.5°F (-2.5°C). The transition into November involves a decrease in the average high-temperature, falling from a cool 52.9°F (11.6°C) in October to a wintry 39.4°F (4.1°C). Weather in November »

Weather in December

December, the first month of the winter in Bethlehem, is still a freezing cold month, with an average temperature fluctuating between 18.1°F (-7.7°C) and 28.2°F (-2.1°C). As November transitions into December, Bethlehem sees a drop in the average high-temperature, transitioning from a cold 39.4°F (4.1°C) to a subzero cold 28.2°F (-2.1°C). Weather in December »
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Frequently asked questions

What month is the coldest in Bethlehem?

With its average high temperature of 22.5°F (-5.3°C) and a low of 9.3°F (-12.6°C), January is regarded as the coldest month.

What are the most humid months in Bethlehem?

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

How much does it rain in Bethlehem?

In Bethlehem, during the entire year, the rain falls for 164.3 days and collects up to 29.45" (748mm) of precipitation.

When does it snow in Bethlehem?

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

How much does it snow in Bethlehem?

Throughout the year, in Bethlehem, New Hampshire, there are 99.6 snowfall days, and 57.68" (1465mm) of snow is accumulated.

What are the months with the lowest UV index in Bethlehem?

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

When does it snow the most in Bethlehem?

The month with the most snowfall in Bethlehem is February, when snow falls for 20.8 days and typically aggregates up to 13.58" (345mm) of snow.

What is the month with the least sunshine in Bethlehem?

The month with the least sunshine in Bethlehem is February, with an average of 3h of sunshine.

When is Daylight Saving Time (DST) in Bethlehem?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Bethlehem, 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 least humid month in Bethlehem?

The least humid month in Bethlehem is May, with an average relative humidity of 76%.

When it does not snow in Bethlehem?

In Bethlehem, New Hampshire, snow does not fall in June through September.

When are the longest days in Bethlehem?

With an average of 15h and 30min of daylight, June has the longest days of the year.

When is the highest UV index in Bethlehem?

The months with the highest UV index in Bethlehem, New Hampshire, are June and July, with an average maximum UV index of 5.

What month is the hottest in Bethlehem?

Bethlehem's July weather, with an average high temperature of 76.3°F (24.6°C) and an average low temperature of 54.1°F (12.3°C), tends to be the warmest of the year.

What month has the most sunshine in Bethlehem?

August has the most sunshine of the year in Bethlehem, New Hampshire, with an average of 9.9h of sunshine.

What is the driest month in Bethlehem?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 2.09" (53mm) of precipitation.

What is the rainiest month in Bethlehem?

The month with the most rainfall is October, when the rain falls for 16.1 days and typically aggregates up to 2.91" (74mm) of precipitation.

What is the month with the shortest days in Bethlehem?

With an average of 8h and 54min of daylight, December has the shortest days of the year.

Average temperature
Bethlehem, NH

Average temperature - Bethlehem, NH

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (22.5°F).

The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

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Average pressure
Bethlehem, NH

Average pressure - Bethlehem, 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
Bethlehem, NH

Average wind speed - Bethlehem, NH

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity
Bethlehem, NH

Average humidity - Bethlehem, NH

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).

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Average rainfall
Bethlehem, NH

Average rainfall - Bethlehem, NH

The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days
Bethlehem, NH

Average rainfall days - Bethlehem, NH

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.7 days).

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Average snowfall
Bethlehem, NH

Average snowfall - Bethlehem, NH

The month with the highest snowfall is February (13.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Bethlehem, NH

Average snowfall days - Bethlehem, NH

The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Bethlehem, NH

Average daylight / Average sunshine - Bethlehem, NH

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).

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Average sunshine days
Bethlehem, NH

Average sunshine days - Bethlehem, NH

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.9 days).

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Average UV index
Bethlehem, NH

Average UV index - Bethlehem, NH

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

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Average visibility
Bethlehem, NH

Average visibility - Bethlehem, NH

The months with the highest visibility are April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, March, September and December (4mi).

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Bethlehem, New Hampshire, USA

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