Climate and monthly weather forecast
Rockleigh, NJ

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Weather in January

January, the same as December, is another cold winter month in Rockleigh, New Jersey, with an average temperature varying between 35.4°F (1.9°C) and 24.1°F (-4.4°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 »

Weather in February

The last month of the winter, February, is also an icy month in Rockleigh, New Jersey, with an average temperature fluctuating between 25.7°F (-3.5°C) and 38.8°F (3.8°C). In February, Rockleigh experiences a minor shift in meteorological conditions with average high-temperatures marked at a still icy 38.8°F (3.8°C), closely mirroring the climate in January. Weather in February »

Weather in March

March, the first month of the spring in Rockleigh, is a frosty month, with an average temperature ranging between min 32.7°F (0.4°C) and max 46.6°F (8.1°C). As March sets, the average high-temperature shows a slight increase, moving up from a cold 38.8°F (3.8°C) in February to a frosty 46.6°F (8.1°C). Weather in March »

Weather in April

April is a refreshing spring month in Rockleigh, New Jersey, with an average temperature fluctuating between 58.3°F (14.6°C) and 43.2°F (6.2°C). Rockleigh in April experiences an increase in the average high-temperature, moving from March's chilly 46.6°F (8.1°C) to a moderate 58.3°F (14.6°C). Weather in April »

Weather in May

May, the last month of the spring in Rockleigh, is a pleasant month, with an average temperature varying between 69.6°F (20.9°C) and 52.7°F (11.5°C). The start of May is characterized by an increase in the average high-temperature, transitioning from a moderate 58.3°F (14.6°C) in April to an agreeable 69.6°F (20.9°C). Weather in May »

Weather in June

June, the first month of the summer in Rockleigh, is a warm month, with an average temperature fluctuating between 60.6°F (15.9°C) and 78.4°F (25.8°C). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's agreeable 69.6°F (20.9°C) to a moderately hot 78.4°F (25.8°C). Weather in June »

Weather in July

July, like June, in Rockleigh, New Jersey, is a moderately hot summer month, with temperature in the range of an average low of 68°F (20°C) and an average high of 84.9°F (29.4°C). In Rockleigh, the peak temperatures are generally noted in July, averaging a high of 84.9°F (29.4°C) and a low of 68°F (20°C). The average heat index in July is estimated at a hot 93.2°F (34°C). Weather in July »

Weather in August

August, the last month of the summer in Rockleigh, is also a moderately hot month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 67.3°F (19.6°C). The unfolding of August shows an average high-temperature of a still warm 82.9°F (28.3°C), indicating a slight variance from July's 84.9°F (29.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Rockleigh, New Jersey, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 75.4°F (24.1°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 82.9°F (28.3°C) in August to a still warm 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Rockleigh, New Jersey, is another comfortable 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). As Rockleigh enters October, the average high-temperature decreases from the a moderately hot 75.4°F (24.1°C) of September to an enjoyable 63.1°F (17.3°C). Weather in October »

Weather in November

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

Weather in December

The first month of the winter, December, is also an icy month in Rockleigh, New Jersey, with an average temperature ranging between min 30.9°F (-0.6°C) and max 41.7°F (5.4°C). Transition into December marks a drop in the average high-temperature, moving from a cool 50.9°F (10.5°C) in November to a wintry 41.7°F (5.4°C). Weather in December »

Frequently asked questions

What is the coldest month in Rockleigh?

Rockleigh reaches its average lowest temperatures in January, measuring 35.4°F (1.9°C) at the peak and 24.1°F (-4.4°C) at the lowest.

How much does it rain?

In Rockleigh, during the entire year, the rain falls for 153.9 days and collects up to 30.75" (781mm) of precipitation.

When does it snow?

Months with snowfall are January through April, November and December.

How many days does it snow?

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

When is 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?

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

What is the month with the least sunshine in Rockleigh?

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

When does it snow the most?

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

When is Daylight Saving Time (DST)?

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

When it does not snow?

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

When are the longest days?

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

When is the highest UV index?

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

What part of the year is the hottest in Rockleigh?

July is the warmest month, with the temperature often reaching an average high of 84.9°F (29.4°C) and an average low of 68°F (20°C).

What month has the most sunshine?

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

What is the least humid month?

August is the least humid month, with an average relative humidity of 68%.

What is the driest month?

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?

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?

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

Average temperature
Rockleigh, NJ

Average temperature - Rockleigh, NJ

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure
Rockleigh, NJ

Average pressure - Rockleigh, NJ

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Rockleigh, NJ

Average wind speed - Rockleigh, NJ

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity
Rockleigh, NJ

Average humidity - Rockleigh, NJ

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).

Average rainfall
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

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 - Rockleigh, NJ

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Rockleigh, NJ

Average snowfall days - Rockleigh, NJ

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

Average daylight / Average sunshine
Rockleigh, NJ

Average daylight / Average sunshine - Rockleigh, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Rockleigh, NJ

Average sunshine days - Rockleigh, NJ

The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).

Average UV index
Rockleigh, NJ

Average UV index - Rockleigh, NJ

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover
Rockleigh, NJ

Average cloud cover - Rockleigh, NJ

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility
Rockleigh, NJ

Average visibility - Rockleigh, NJ

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

Rockleigh, New Jersey, USA

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