Climate and monthly weather forecast
Glen Rock, NJ

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Weather in January

January, like December, in Glen Rock, New Jersey, is a wintry winter month, with an average temperature varying between 35.2°F (1.8°C) and 23.4°F (-4.8°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 35.2°F (1.8°C) and a low of 23.4°F (-4.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Glen Rock, New Jersey, with an average temperature fluctuating between 38.8°F (3.8°C) and 25.2°F (-3.8°C). The average high-temperature for February is a still icy 38.8°F (3.8°C), closely aligning with the temperature of the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Glen Rock, is a chilly month, with an average temperature fluctuating between 32.2°F (0.1°C) and 46.4°F (8°C). The beginning of March marks a minor shift in the average high-temperature, moving from February's wintry 38.8°F (3.8°C) to a chilly 46.4°F (8°C). Weather in March »

Weather in April

April in Glen Rock, New Jersey, is a refreshing spring month, with an average temperature fluctuating between 42.6°F (5.9°C) and 58.6°F (14.8°C). Glen Rock's weather in April shows a rise in the average high-temperature, moving up from March's chilly 46.4°F (8°C) to a mild 58.6°F (14.8°C). Weather in April »

Weather in May

May, the last month of the spring in Glen Rock, is an agreeable month, with an average temperature fluctuating between 69.4°F (20.8°C) and 52.2°F (11.2°C). Glen Rock in May shows a temperature shift, moving from an average high of a mild 58.6°F (14.8°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Glen Rock, New Jersey, with an average temperature varying between 77.5°F (25.3°C) and 59.9°F (15.5°C). The start of June signals a slight increase in the average high-temperature, moving from a pleasant 69.4°F (20.8°C) in May to a moderately hot 77.5°F (25.3°C). Weather in June »

Weather in July

July, like June, in Glen Rock, New Jersey, is another warm summer month, with an average temperature ranging between min 66.7°F (19.3°C) and max 84.4°F (29.1°C). July, recognised by an average high temperature of 84.4°F (29.1°C) and a low of 66.7°F (19.3°C), is Glen Rock's warmest month. July's mean heat index is appraised at a tropical 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Glen Rock, New Jersey, with an average temperature fluctuating between 82.4°F (28°C) and 65.8°F (18.8°C). As August unfolds, the average high-temperature reaches a still moderately hot 82.4°F (28°C), hinting at a slight fluctuation from the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Glen Rock, is also a moderately hot month, with an average temperature varying between 75.2°F (24°C) and 58.6°F (14.8°C). The onset of September brings a small shift in high-temperatures, falling from 82.4°F (28°C) in August to a still moderately hot 75.2°F (24°C). Weather in September »

Weather in October

October, like September, in Glen Rock, New Jersey, is another comfortable autumn month, with an average temperature ranging between max 62.8°F (17.1°C) and min 49.1°F (9.5°C). Glen Rock's progression into October includes a drop in the average high-temperature, from a warm 75.2°F (24°C) in September to a comfortable 62.8°F (17.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Glen Rock, is another cool month, with an average temperature fluctuating between 50.9°F (10.5°C) and 37.6°F (3.1°C). Observing a mild shift, the average high-temperature during November reduces from October's comfortable 62.8°F (17.1°C) to a cool 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 Glen Rock, New Jersey, with an average temperature varying between 30.9°F (-0.6°C) and 41.2°F (5.1°C). In Glen Rock, the beginning of December is marked by a lowered average high-temperature, shifting from November's fresh 50.9°F (10.5°C) to an icy 41.2°F (5.1°C). Weather in December »
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January, recording an average high temperature of 35.2°F (1.8°C) and a low temperature of 23.4°F (-4.8°C), is Glen Rock's coldest month.

How much does it rain?

In Glen Rock, during the entire year, the rain falls for 160.7 days and collects up to 29.33" (745mm) of precipitation.

When does it snow?

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

How many days does it snow?

Throughout the year, in Glen Rock, there are 24.9 snowfall days, and 10.04" (255mm) of snow is accumulated.

What are the months with the lowest UV index?

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

What are the most humid months?

The months with the highest humidity are February and December, with an average relative humidity of 78%.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 7.2 days and accumulates 3.23" (82mm) of snow.

What is the month with the least sunshine in Glen Rock?

The month with the least sunshine is February, with an average of 4.6h of sunshine.

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.

What are the least humid months?

April, July and August, with an average relative humidity of 72%, are the least humid months.

When it does not snow?

In Glen Rock, snow does not fall in June through September.

When are the longest days?

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

When is the highest UV index?

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

What month is the hottest?

In Glen Rock, July is identified by the average highest temperatures, reaching a peak of 84.4°F (29.1°C) and a low of 66.7°F (19.3°C).

What is the wettest month?

The wettest months are July and December, with an average 3.07" (78mm) of rainfall.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.4h of sunshine.

What is the driest month in Glen Rock?

September is the month with the least rainfall in Glen Rock. Rain falls for 13.2 days and accumulates 1.73" (44mm) 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
Glen Rock, NJ

Average temperature - Glen Rock, NJ

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure
Glen Rock, NJ

Average pressure - Glen Rock, 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).

Average wind speed
Glen Rock, NJ

Average wind speed - Glen Rock, NJ

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity
Glen Rock, NJ

Average humidity - Glen Rock, NJ

The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall
Glen Rock, NJ

Average rainfall - Glen Rock, NJ

The wettest months (with the highest rainfall) are July and December (3.07").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days
Glen Rock, NJ

Average rainfall days - Glen Rock, NJ

The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is January (8.9 days).

Average snowfall
Glen Rock, NJ

Average snowfall - Glen Rock, NJ

The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Glen Rock, NJ

Average snowfall days - Glen Rock, NJ

The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Glen Rock, NJ

Average daylight / Average sunshine - Glen Rock, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Glen Rock, NJ

Average sunshine days - Glen Rock, NJ

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10.5 days).

Average UV index
Glen Rock, NJ

Average UV index - Glen Rock, 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 visibility
Glen Rock, NJ

Average visibility - Glen Rock, NJ

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

Glen Rock, New Jersey, USA

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