Climate and monthly weather forecast
Allendale, NJ

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Weather in January

January, the same as December, is an icy winter month in Allendale, New Jersey, with an average temperature varying between 22.8°F (-5.1°C) and 35.2°F (1.8°C). January stands out as Allendale's coldest month, with an average high-temperature of 35.2°F (1.8°C) and a low-temperature of 22.8°F (-5.1°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Allendale, New Jersey, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 38.3°F (3.5°C). Allendale's entry into February measures an average high-temperature of a still icy 38.3°F (3.5°C), closely parallel to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Allendale, New Jersey, with an average temperature ranging between max 46.6°F (8.1°C) and min 32.2°F (0.1°C). March comes with a subtle rise, with the average high-temperature adjusting from a cold 38.3°F (3.5°C) in February to a frosty 46.6°F (8.1°C). Weather in March »

Weather in April

April is a moderate spring month in Allendale, New Jersey, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 58.6°F (14.8°C). Allendale's April weather shows an increase in high-temperatures, moving from March's frosty 46.6°F (8.1°C) to a refreshing 58.6°F (14.8°C). Weather in April »

Weather in May

May, the last month of the spring in Allendale, is an agreeable month, with an average temperature fluctuating between 69.8°F (21°C) and 51.8°F (11°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's mild 58.6°F (14.8°C) to an agreeable 69.8°F (21°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Allendale, New Jersey, with temperature in the range of an average high of 78.4°F (25.8°C) and an average low of 60.1°F (15.6°C). The coming of June brings a minor shift in Allendale's weather, with average high-temperatures adjusting from May's pleasant 69.8°F (21°C) to a moderately hot 78.4°F (25.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Allendale, New Jersey, with an average temperature fluctuating between 66.6°F (19.2°C) and 84.7°F (29.3°C). The average temperatures reach their apex in July, averaging 84.7°F (29.3°C) at the high end and 66.6°F (19.2°C) at the low end. For July, the heat index is appraised at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Allendale, New Jersey, with an average temperature ranging between max 82.9°F (28.3°C) and min 65.7°F (18.7°C). August's onset records a minor alteration in the average high-temperature to a still warm 82.9°F (28.3°C) from July's 84.7°F (29.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Allendale, New Jersey, with an average temperature ranging between min 58.3°F (14.6°C) and max 75.2°F (24°C). September signifies a minor drop in average high-temperature, transitioning from a warm 82.9°F (28.3°C) in August to a still moderately hot 75.2°F (24°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Allendale, New Jersey, with an average temperature fluctuating between 62.8°F (17.1°C) and 48.4°F (9.1°C). The onset of October entails a temperature shift, as the average high-temperature decreases 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 Allendale, is another cool month, with an average temperature fluctuating between 37°F (2.8°C) and 50.7°F (10.4°C). With the onset of November, Allendale's average high-temperature adjusts, receding from October's comfortable 62.8°F (17.1°C) to a fresh 50.7°F (10.4°C). Weather in November »

Weather in December

December, the first month of the winter in Allendale, is also a wintry month, with an average temperature fluctuating between 40.8°F (4.9°C) and 30.4°F (-0.9°C). The shift from November to December corresponds with a decrease in the average high-temperature, down to a cold 40.8°F (4.9°C) from a fresh 50.7°F (10.4°C). Weather in December »
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Frequently asked questions

What are the coldest months in Allendale?

January, with average temperatures reaching a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C), is the coldest month in Allendale, New Jersey.

How many days does it rain in Allendale?

In Allendale, New Jersey, during the entire year, the rain falls for 157.3 days and collects up to 32.72" (831mm) of precipitation.

When does it snow in Allendale?

Months with snowfall in Allendale are January through April, October through December.

How many days does it snow in Allendale?

Throughout the year, there are 28 snowfall days, and 13.82" (351mm) of snow is accumulated.

What is the month with the lowest UV index in Allendale?

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

What is the most humid month in Allendale?

February and December, with an average relative humidity of 78%, are most humid months in Allendale, New Jersey.

What is the snowiest month in Allendale?

The month with the most snowfall in Allendale is February, when snow falls for 7.9 days and typically aggregates up to 4.09" (104mm) of snow.

What is the month with the least sunshine in Allendale?

February has the least sunshine of the year in Allendale, with an average of 4.5h of sunshine.

When is Daylight Saving Time (DST) in Allendale?

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 Allendale?

May through September are months without snowfall in Allendale.

When are the longest days in Allendale?

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

What is the month with the highest UV index in Allendale?

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

What is the hottest time of year in Allendale?

July is the warmest month in Allendale, New Jersey, exhibiting average temperatures of 84.7°F (29.3°C) at the peak and 66.6°F (19.2°C) at the base.

What month has the most sunshine in Allendale?

With an average of 10.2h of sunshine, July has the most sunshine of the year.

What is the least humid month in Allendale?

With an average relative humidity of 70%, August is the least humid month.

What is the driest month in Allendale?

The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.89" (48mm) of precipitation.

What is the rainiest month in Allendale?

The month with the most rainfall is December, when the rain falls for 10.6 days and typically aggregates up to 3.58" (91mm) of precipitation.

What is the month with the shortest days in Allendale?

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

Average temperature
Allendale, NJ

Average temperature - Allendale, NJ

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure
Allendale, NJ

Average pressure - Allendale, 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).

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Average wind speed
Allendale, NJ

Average wind speed - Allendale, NJ

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity
Allendale, NJ

Average humidity - Allendale, NJ

The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).

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Average rainfall
Allendale, NJ

Average rainfall - Allendale, NJ

The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days
Allendale, NJ

Average rainfall days - Allendale, NJ

The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall
Allendale, NJ

Average snowfall - Allendale, NJ

The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Allendale, NJ

Average snowfall days - Allendale, NJ

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Allendale, NJ

Average daylight / Average sunshine - Allendale, 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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
Allendale, NJ

Average sunshine days - Allendale, NJ

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.5 days).

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Average UV index
Allendale, NJ

Average UV index - Allendale, 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).

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Average visibility
Allendale, NJ

Average visibility - Allendale, 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).

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Allendale, New Jersey, USA

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