Climate and monthly weather forecast
Lake Hopatcong, NJ

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Weather in January

January, the same as December, is a wintry winter month in Lake Hopatcong, New Jersey, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 33.3°F (0.7°C). The month of January, characterized by an average high of 33.3°F (0.7°C) and a low of 20.7°F (-6.3°C), is recognized as the coldest. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Lake Hopatcong, New Jersey, with an average temperature fluctuating between 21.9°F (-5.6°C) and 36.9°F (2.7°C). Lake Hopatcong's transition from January to February introduces an average high-temperature of a still wintry 36.9°F (2.7°C), marking an insignificant variation from the 33.3°F (0.7°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Lake Hopatcong, New Jersey, with an average temperature ranging between max 45°F (7.2°C) and min 29.7°F (-1.3°C). The shift from February to March introduces a subtle increase in the average high-temperature, moving from a wintry 36.9°F (2.7°C) to a chilly 45°F (7.2°C). Weather in March »

Weather in April

April is a mild spring month in Lake Hopatcong, New Jersey, with an average temperature ranging between min 39.9°F (4.4°C) and max 57.7°F (14.3°C). April indicates a change in the average high-temperature, moving up from a frosty 45°F (7.2°C) in March to a moderate 57.7°F (14.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Lake Hopatcong, New Jersey, with an average temperature ranging between min 49.6°F (9.8°C) and max 68.2°F (20.1°C). Entering May, Lake Hopatcong sees a temperature rise, with the average high-temperature advancing from April's moderate 57.7°F (14.3°C) to an agreeable 68.2°F (20.1°C). Weather in May »

Weather in June

June, the first month of the summer in Lake Hopatcong, is a moderately hot month, with an average temperature ranging between min 56.8°F (13.8°C) and max 76.3°F (24.6°C). The onset of June brings a minor temperature shift, with the average high-temperature moving from an agreeable 68.2°F (20.1°C) in May to a warm 76.3°F (24.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Lake Hopatcong, New Jersey, with an average temperature fluctuating between 82.4°F (28°C) and 63°F (17.2°C). In Lake Hopatcong, the peak temperatures are generally noted in July, averaging a high of 82.4°F (28°C) and a low of 63°F (17.2°C). During July, the heat index is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Lake Hopatcong, is also a moderately hot month, with an average temperature varying between 61.3°F (16.3°C) and 80.4°F (26.9°C). Lake Hopatcong, New Jersey, marks the onset of August with an average high-temperature of a still moderately hot 80.4°F (26.9°C), subtly divergent from July's 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Lake Hopatcong, New Jersey, with an average temperature ranging between max 73.8°F (23.2°C) and min 54.9°F (12.7°C). With the onset of September, Lake Hopatcong experiences a modest temperature adjustment, with the average high-temperature gently receding from 80.4°F (26.9°C) in August to a still warm 73.8°F (23.2°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Lake Hopatcong, New Jersey, with an average temperature ranging between min 45°F (7.2°C) and max 60.8°F (16°C). October indicates a shift in the average high-temperature, from September's warm 73.8°F (23.2°C) to a comfortable 60.8°F (16°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Lake Hopatcong, New Jersey, with an average temperature fluctuating between 48.6°F (9.2°C) and 34.3°F (1.3°C). The onset of November brings a small change in high-temperatures, falling from a refreshing 60.8°F (16°C) in October to a chilly 48.6°F (9.2°C). Weather in November »

Weather in December

December, the first month of the winter in Lake Hopatcong, is also a wintry month, with an average temperature fluctuating between 39.2°F (4°C) and 27.7°F (-2.4°C). The start of December comes with a reduction in the average high-temperature, receding from a frosty 48.6°F (9.2°C) in November to an icy 39.2°F (4°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Lake Hopatcong?

January is the month that records the lowest temperatures, with averages ranging from a high of 33.3°F (0.7°C) to a low of 20.7°F (-6.3°C).

How much does it rain in Lake Hopatcong?

Throughout the year, there are 160.1 rainfall days, and 35.87" (911mm) of precipitation is accumulated.

When does it snow in Lake Hopatcong?

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

How much does it snow in Lake Hopatcong?

In Lake Hopatcong, New Jersey, during the entire year, snow falls for 40.2 days and aggregates up to 23.62" (600mm) of snow.

What is the most humid month in Lake Hopatcong?

The months with the highest humidity in Lake Hopatcong are February, October and December, with an average relative humidity of 81%.

What is the snowiest month in Lake Hopatcong?

February is the month with the most snowfall in Lake Hopatcong, New Jersey. Snow falls for 10.8 days and accumulates 5.71" (145mm) of snow.

What is the month with the least sunshine in Lake Hopatcong?

The month with the least sunshine is February, with an average of 4.3h of sunshine.

When is Daylight Saving Time (DST) in Lake Hopatcong?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lake Hopatcong, 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 Lake Hopatcong?

The least humid month in Lake Hopatcong, New Jersey, is April, with an average relative humidity of 76%.

When it does not snow in Lake Hopatcong?

In Lake Hopatcong, New Jersey, snow does not fall in June through September.

When are the longest days in Lake Hopatcong?

June has the longest days of the year, with an average of 15h and 6min of daylight.

What is the month with the highest UV index in Lake Hopatcong?

June is the month with the highest UV index, with an average maximum UV index of 6.

What are the warmest months in Lake Hopatcong?

In Lake Hopatcong, July records the average highest temperatures, peaking at 82.4°F (28°C) and reaching a low of 63°F (17.2°C).

What is the wettest month in Lake Hopatcong?

The month with the most rainfall is July, when the rain falls for 17.4 days and typically aggregates up to 3.66" (93mm) of precipitation.

What month has the most sunshine in Lake Hopatcong?

July has the most sunshine of the year, with an average of 10h of sunshine.

What is the driest month in Lake Hopatcong?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 2.05" (52mm) of precipitation.

What is the month with the shortest days in Lake Hopatcong?

December has the shortest days of the year in Lake Hopatcong, with an average of 9h and 18min of daylight.

What is the month with the lowest UV index in Lake Hopatcong?

The month with the lowest UV index in Lake Hopatcong, New Jersey, is December, with an average maximum UV index of 1.

Average temperature
Lake Hopatcong, NJ

Average temperature - Lake Hopatcong, NJ

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure
Lake Hopatcong, NJ

Average pressure - Lake Hopatcong, NJ

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Lake Hopatcong, NJ

Average wind speed - Lake Hopatcong, NJ

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Lake Hopatcong, NJ

Average humidity - Lake Hopatcong, NJ

The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall
Lake Hopatcong, NJ

Average rainfall - Lake Hopatcong, NJ

The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days
Lake Hopatcong, NJ

Average rainfall days - Lake Hopatcong, NJ

The months with the highest number of rainy days are May and July (17.4 days).
The month with the least rainy days is January (7.5 days).

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Average snowfall
Lake Hopatcong, NJ

Average snowfall - Lake Hopatcong, NJ

The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Lake Hopatcong, NJ

Average snowfall days - Lake Hopatcong, NJ

The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Lake Hopatcong, NJ

Average daylight / Average sunshine - Lake Hopatcong, NJ

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days
Lake Hopatcong, NJ

Average sunshine days - Lake Hopatcong, NJ

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is June (10.6 days).

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Average cloud cover
Lake Hopatcong, NJ

Average cloud cover - Lake Hopatcong, NJ

The months with the most cloud cover are February, March and December (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility
Lake Hopatcong, NJ

Average visibility - Lake Hopatcong, NJ

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

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Lake Hopatcong, New Jersey, USA

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