Climate and monthly weather forecast
Annandale, NJ

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Weather in January

January, like December, in Annandale, New Jersey, is a wintry winter month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 35.1°F (1.7°C). With average temperatures fluctuating between a high of 35.1°F (1.7°C) and a low of 22.3°F (-5.4°C), January stands out as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Annandale, is another cold month, with temperature in the range of an average low of 23.9°F (-4.5°C) and an average high of 38.3°F (3.5°C). The advent of February observes an average high-temperature of a still wintry 38.3°F (3.5°C), nearly identical to January's 35.1°F (1.7°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Annandale, New Jersey, with an average temperature ranging between min 31.5°F (-0.3°C) and max 46.9°F (8.3°C). A slight uplift in the average high-temperature marks March, adjusting from February's cold 38.3°F (3.5°C) to a frosty 46.9°F (8.3°C). Weather in March »

Weather in April

April in Annandale, New Jersey, is a mild spring month, with an average temperature ranging between max 59°F (15°C) and min 41.4°F (5.2°C). Annandale sees an increase in the average high-temperature with the arrival of April, moving from March's chilly 46.9°F (8.3°C) to a mild 59°F (15°C). Weather in April »

Weather in May

May, the last month of the spring in Annandale, is a pleasant month, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 51.1°F (10.6°C). As Annandale transitions into May, the average high-temperature shows a change, moving from a mild 59°F (15°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »

Weather in June

June, the first month of the summer in Annandale, is a moderately hot month, with an average temperature fluctuating between 77.5°F (25.3°C) and 58.5°F (14.7°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from an agreeable 69.6°F (20.9°C) in May to a warm 77.5°F (25.3°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Annandale, New Jersey, with an average temperature varying between 64°F (17.8°C) and 83.8°F (28.8°C). Annandale's temperatures peak on average in July, reaching 83.8°F (28.8°C) at their highest and 64°F (17.8°C) at their lowest. In 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 Annandale, New Jersey, with an average temperature ranging between min 62.4°F (16.9°C) and max 81.9°F (27.7°C). As Annandale welcomes August, the average high-temperature stabilizes at a still warm 81.9°F (27.7°C), showing little deviation from July's 83.8°F (28.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Annandale, New Jersey, with an average temperature ranging between max 74.7°F (23.7°C) and min 56.1°F (13.4°C). September is characterized by a slight reduction in average high-temperature, easing from 81.9°F (27.7°C) in August to a still warm 74.7°F (23.7°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Annandale, New Jersey, with an average temperature ranging between min 46.4°F (8°C) and max 62.2°F (16.8°C). The decrease of average high-temperatures is mild in October, with a decline from a warm 74.7°F (23.7°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Annandale, is another cool month, with an average temperature ranging between min 35.8°F (2.1°C) and max 50.4°F (10.2°C). The average high-temperature decreases in November, shifting from an enjoyable 62.2°F (16.8°C) in October to a cool 50.4°F (10.2°C). Weather in November »

Weather in December

December, the first month of the winter in Annandale, is still a cold month, with an average temperature ranging between max 41°F (5°C) and min 29.3°F (-1.5°C). The onset of December comes with a shift in the average high-temperature, falling from a cool 50.4°F (10.2°C) in November to a wintry 41°F (5°C). Weather in December »
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Frequently asked questions

What are the coldest months in Annandale?

January is Annandale's coldest month, registering average high temperatures of 35.1°F (1.7°C) and lows of 22.3°F (-5.4°C).

How much does it rain in Annandale?

Throughout the year, in Annandale, New Jersey, there are 162.3 rainfall days, and 32.83" (834mm) of precipitation is accumulated.

When does it snow in Annandale?

Months with snowfall in Annandale, New Jersey, are January through May, October through December.

How much does it snow in Annandale?

Throughout the year, in Annandale, New Jersey, there are 27.8 snowfall days, and 15.35" (390mm) of snow is accumulated.

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

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

What are the most humid months in Annandale?

February, October and December, with an average relative humidity of 80%, are most humid months in Annandale.

What is the month with the least sunshine in Annandale?

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

What is the snowiest month in Annandale?

March is the month with the most snowfall in Annandale. Snow falls for 5.6 days and accumulates 4.76" (121mm) of snow.

When is Daylight Saving Time (DST) in Annandale?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Annandale, 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 is the least humid month in Annandale?

April is the least humid month in Annandale, with an average relative humidity of 75%.

When it does not snow in Annandale?

June through September are months without snowfall.

When are the longest days in Annandale?

June has the longest days of the year in Annandale, New Jersey, with an average of 15h and 0min of daylight.

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

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

What is the hottest time of year in Annandale?

July proves to be the warmest month in Annandale, recording an average peak temperature of 83.8°F (28.8°C) and a minimum temperature of 64°F (17.8°C).

What month has the most sunshine in Annandale?

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

What is the driest month in Annandale?

The month with the least rainfall in Annandale is September, when the rain falls for 12.3 days and typically collects 1.89" (48mm) of precipitation.

What is the rainiest month in Annandale?

The month with the most rainfall in Annandale is December, when the rain falls for 12.3 days and typically aggregates up to 3.35" (85mm) of precipitation.

What is the month with the shortest days in Annandale?

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

Average temperature
Annandale, NJ

Average temperature - Annandale, NJ

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure
Annandale, NJ

Average pressure - Annandale, 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).

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Average wind speed
Annandale, NJ

Average wind speed - Annandale, NJ

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Annandale, NJ

Average humidity - Annandale, NJ

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall
Annandale, NJ

Average rainfall - Annandale, NJ

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days
Annandale, NJ

Average rainfall days - Annandale, NJ

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall
Annandale, NJ

Average snowfall - Annandale, NJ

The month with the highest snowfall is March (4.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Annandale, NJ

Average snowfall days - Annandale, NJ

The months with the highest number of snowfall days are January and February (8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Annandale, NJ

Average daylight / Average sunshine - Annandale, NJ

The month with the longest days is June (Average daylight: 15h and 0min).
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).

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Average sunshine days
Annandale, NJ

Average sunshine days - Annandale, NJ

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11 days).

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Average UV index
Annandale, NJ

Average UV index - Annandale, 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
Annandale, NJ

Average visibility - Annandale, NJ

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

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Annandale, New Jersey, USA

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