Rockleigh
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Rockleigh, NJ

January, the same as December, is a wintry winter month in Rockleigh, New Jersey, with average temperature fluctuating between 24.1°F (-4.4°C) and 35.4°F (1.9°C). January is the coldest month, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 24.1°F (-4.4°C). Weather in January »

February, the last month of the winter, in Rockleigh, is another cold month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 38.8°F (3.8°C). In February, the average high-temperature is almost the same as in January - a still cold 38.8°F (3.8°C). Weather in February »

March, the first month of the spring, in Rockleigh, is a frosty month, with average temperature varying between 46.6°F (8.1°C) and 32.7°F (0.4°C). In March, the average high-temperature marginally rises, from a wintry 38.8°F (3.8°C) in February, to a frosty 46.6°F (8.1°C). Weather in March »

April is a moderate spring month in Rockleigh, New Jersey, with average temperature ranging between max 58.3°F (14.6°C) and min 43.2°F (6.2°C). In Rockleigh, the average high-temperature in April increases, from a chilly 46.6°F (8.1°C) in March, to a mild 58.3°F (14.6°C). Weather in April »

The last month of the spring, May, is an agreeable month in Rockleigh, New Jersey, with average temperature ranging between max 69.6°F (20.9°C) and min 52.7°F (11.5°C). In Rockleigh, the average high-temperature in May rises, from a moderate 58.3°F (14.6°C) in April, to a pleasant 69.6°F (20.9°C). Weather in May »

June, the first month of the summer, in Rockleigh, is a moderately hot month, with average temperature varying between 78.4°F (25.8°C) and 60.6°F (15.9°C). In June, the average high-temperature slightly increases, from a pleasant 69.6°F (20.9°C) in May, to a moderately hot 78.4°F (25.8°C). Weather in June »

July, the same as June, is a moderately hot summer month in Rockleigh, New Jersey, with average temperature fluctuating between 68°F (20°C) and 84.9°F (29.4°C). July is the warmest month, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68°F (20°C). In July, the average heat index is calculated to a hot 92.5°F (33.6°C). Weather in July »

August, the last month of the summer, in Rockleigh, is also a moderately hot month, with average temperature ranging between max 82.9°F (28.3°C) and min 67.3°F (19.6°C). In Rockleigh, New Jersey, the average high-temperature is almost the same as in July - a still moderately hot 82.9°F (28.3°C). Weather in August »

September, the first month of the autumn, in Rockleigh, is also a moderately hot month, with average temperature ranging between min 59.9°F (15.5°C) and max 75.4°F (24.1°C). In Rockleigh, New Jersey, the average high-temperature slightly decreases, from a warm 82.9°F (28.3°C) in August, to a still moderately hot 75.4°F (24.1°C). Weather in September »

October, like September, in Rockleigh, New Jersey, is another enjoyable autumn month, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 63.1°F (17.3°C). In October, the average high-temperature decreases, from a warm 75.4°F (24.1°C) in September, to a comfortable 63.1°F (17.3°C). Weather in October »

November, the last month of the autumn, in Rockleigh, is another cool month, with temperature in the range of an average high of 50.9°F (10.5°C) and an average low of 38.5°F (3.6°C). In Rockleigh, the average high-temperature decreases, from a comfortable 63.1°F (17.3°C) in October, to a cool 50.9°F (10.5°C). Weather in November »

December, the first month of the winter, in Rockleigh, is still a cold month, with average temperature fluctuating between 30.9°F (-0.6°C) and 41.7°F (5.4°C). In Rockleigh, New Jersey, the average high-temperature drops, from a fresh 50.9°F (10.5°C) in November, to a cold 41.7°F (5.4°C). Weather in December »

What is the coldest month in Rockleigh?

January is the coldest month, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 24.1°F (-4.4°C).

How much does it rain in Rockleigh?

Throughout the year, in Rockleigh, there are 153.9 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

When does it snow in Rockleigh?

January through April, November and December are months with snowfall in Rockleigh.

How much does it snow in Rockleigh?

In Rockleigh, New Jersey, during the entire year, snow falls for 25.5 days, and aggregates up to 10.55" (268mm) of snow.

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

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

What is the most humid month in Rockleigh?

February is the most humid month, with an average relative humidity of 77%.

What is the month with the least sunshine in Rockleigh?

February has the least sunshine of the year, with an average of 4.6h of sunshine.

What is the snowiest month in Rockleigh?

March is the month with the most snowfall in Rockleigh, New Jersey. Snow falls for 5.4 days and accumulates 3.07" (78mm) of snow.

When it does not snow in Rockleigh?

In Rockleigh, New Jersey, snow does not fall in May through October.

When are the longest days in Rockleigh?

June has the longest days of the year in Rockleigh, New Jersey, with an average of 15.1h of daylight.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Rockleigh?

July is the warmest month in Rockleigh, New Jersey, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68°F (20°C).

What month has the most sunshine in Rockleigh?

With an average of 10.3h of sunshine, July has the most sunshine of the year.

What is the least humid month in Rockleigh?

With an average relative humidity of 68%, August is the least humid month in Rockleigh.

What is the driest month in Rockleigh?

September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.73" (44mm) of precipitation.

What is the rainiest month in Rockleigh?

December is the month with the most rainfall in Rockleigh. Rain falls for 10.7 days and accumulates 3.46" (88mm) of precipitation.

What is the month with the shortest days in Rockleigh?

The month with the shortest days is December, with an average of 9.3h of daylight.
Average temperature - Rockleigh, NJ
Average rainfall - Rockleigh, NJ

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days - Rockleigh, NJ

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).

Average snowfall - Rockleigh, NJ
Average snowfall days - Rockleigh, NJ

The month with the highest number of snowfall days is January (6.9 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Rockleigh, 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 UV index - Rockleigh, NJ