Monthly weather forecast and climate
Long Valley, NJ

January, like December, in Long Valley, New Jersey, is a wintry winter month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 34°F (1.1°C). January is the coldest month, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 21.6°F (-5.8°C). Weather in January »

February, the last month of the winter, in Long Valley, is another cold month, with average temperature varying between 23.2°F (-4.9°C) and 37.9°F (3.3°C). In Long Valley, the average high-temperature is practically the same as in January - a still wintry 37.9°F (3.3°C). Weather in February »

The first month of the spring, March, is a chilly month in Long Valley, New Jersey, with average temperature ranging between max 45.5°F (7.5°C) and min 30.4°F (-0.9°C). In Long Valley, the average high-temperature marginally rises, from a wintry 37.9°F (3.3°C) in February, to a frosty 45.5°F (7.5°C). Weather in March »

April is a mild spring month in Long Valley, New Jersey, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 57.9°F (14.4°C). In April, the average high-temperature increases, from a frosty 45.5°F (7.5°C) in March, to a moderate 57.9°F (14.4°C). Weather in April »

May, the last month of the spring, in Long Valley, is an agreeable month, with average temperature varying between 69.3°F (20.7°C) and 50.2°F (10.1°C). In May, the average high-temperature rises, from a moderate 57.9°F (14.4°C) in April, to a pleasant 69.3°F (20.7°C). Weather in May »

The first month of the summer, June, is a warm month in Long Valley, New Jersey, with average temperature ranging between min 57.6°F (14.2°C) and max 77.4°F (25.2°C). In Long Valley, New Jersey, the average high-temperature in June slightly increases, from a pleasant 69.3°F (20.7°C) in May, to a moderately hot 77.4°F (25.2°C). Weather in June »

July, the same as June, is another warm summer month in Long Valley, New Jersey, with average temperature fluctuating between 63.3°F (17.4°C) and 83.1°F (28.4°C). The warmest month is July, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.3°F (17.4°C). The average heat index is estimated at a hot 90.7°F (32.6°C). Weather in July »

August, the last month of the summer, in Long Valley, is another warm month, with average temperature fluctuating between 61.3°F (16.3°C) and 81.5°F (27.5°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 81.5°F (27.5°C). Weather in August »

September, the first month of the autumn, in Long Valley, is still a warm month, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 55.2°F (12.9°C). In September, the average high-temperature marginally drops, from 81.5°F (27.5°C) in August, to a still moderately hot 74.3°F (23.5°C). Weather in September »

October, like September, in Long Valley, New Jersey, is another comfortable autumn month, with average temperature ranging between min 46°F (7.8°C) and max 61.9°F (16.6°C). In Long Valley, the average high-temperature drops, from a warm 74.3°F (23.5°C) in September, to an enjoyable 61.9°F (16.6°C). Weather in October »

November, the last month of the autumn, in Long Valley, is also a frosty month, with average temperature fluctuating between 34.9°F (1.6°C) and 49.6°F (9.8°C). In November, the average high-temperature drops, from an enjoyable 61.9°F (16.6°C) in October, to a chilly 49.6°F (9.8°C). Weather in November »

The first month of the winter, December, is still a cold month in Long Valley, New Jersey, with average temperature ranging between min 28.6°F (-1.9°C) and max 40.1°F (4.5°C). In Long Valley, the average high-temperature in December decreases, from a chilly 49.6°F (9.8°C) in November, to a cold 40.1°F (4.5°C). Weather in December »

What is the coldest month in Long Valley?

With an average high-temperature of 34°F (1.1°C) and an average low-temperature of 21.6°F (-5.8°C), January is the coldest month in Long Valley.

How much does it rain in Long Valley?

In Long Valley, New Jersey, during the entire year, the rain falls for 161.9 days and collects up to 28.78" (731mm) of precipitation.

When does it snow in Long Valley?

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

How many days does it snow in Long Valley?

Throughout the year, in Long Valley, New Jersey, there are 30.8 snowfall days, and 14.21" (361mm) of snow is accumulated.

What are the months with the lowest UV index in Long Valley?

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

What are the most humid months in Long Valley?

Months with the highest humidity in Long Valley, New Jersey, are February and October, with an average relative humidity of 81%.

What is the snowiest month in Long Valley?

February is the month with the most snowfall in Long Valley, New Jersey. Snow falls for 8.3 days and accumulates 3.78" (96mm) of snow.

What is the month with the least sunshine in Long Valley?

The month with the least sunshine in Long Valley, New Jersey, is February, with an average of 4.6h of sunshine.

What is the least humid month in Long Valley?

The least humid month in Long Valley, New Jersey, is April, with an average relative humidity of 75%.

When it does not snow in Long Valley?

In Long Valley, New Jersey, snow does not fall in June through September.

When are the longest days in Long Valley?

The month with the longest days is June, with an average of 15.1h of daylight.

What is the month with the highest UV index in Long Valley?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Long Valley, New Jersey.

What is the warmest month in Long Valley?

July is the warmest month, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.3°F (17.4°C).

What is the wettest month in Long Valley?

July is the month with the most rainfall in Long Valley, New Jersey. Rain falls for 16.6 days and accumulates 2.95" (75mm) of precipitation.

What month has the most sunshine in Long Valley?

July has the most sunshine of the year in Long Valley, with an average of 10.3h of sunshine.

What is the driest month in Long Valley?

September is the month with the least rainfall in Long Valley, New Jersey. Rain falls for 12.2 days and accumulates 1.54" (39mm) of precipitation.

What is the month with the shortest days in Long Valley?

The month with the shortest days in Long Valley is December, with an average of 9.3h of daylight.
Average temperature - Long Valley, NJ
Average pressure - Long Valley, NJ

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

Average wind speed - Long Valley, 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 (4.8mph).

Average humidity - Long Valley, NJ
Average rainfall - Long Valley, NJ

The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days - Long Valley, NJ

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (8.3 days).

Average snowfall - Long Valley, NJ
Average snowfall days - Long Valley, NJ

The month with the highest number of snowfall days is January (8.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Long Valley, NJ

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days - Long Valley, NJ

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11.5 days).

Average UV index - Long Valley, NJ
Average visibility - Long Valley, NJ

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