Monthly weather forecast and climate
Annandale, NJ

January, like December, in Annandale, New Jersey, is a wintry winter month, with average temperature varying between 35.1°F (1.7°C) and 22.3°F (-5.4°C). January is the coldest month, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.3°F (-5.4°C). Weather in January »

The last month of the winter, February, is also a wintry month in Annandale, New Jersey, with average temperature fluctuating between 23.9°F (-4.5°C) and 38.3°F (3.5°C). In Annandale, New Jersey, the average high-temperature is relatively the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

March, the first month of the spring, in Annandale, is a frosty month, with average temperature varying between 31.5°F (-0.3°C) and 46.9°F (8.3°C). In March, the average high-temperature marginally rises, from a wintry 38.3°F (3.5°C) in February, to a frosty 46.9°F (8.3°C). Weather in March »

April is a mild spring month in Annandale, New Jersey, with average temperature ranging between max 59°F (15°C) and min 41.4°F (5.2°C). In April, the average high-temperature rises, from a frosty 46.9°F (8.3°C) in March, to a mild 59°F (15°C). Weather in April »

May, the last month of the spring, in Annandale, is an agreeable 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). In Annandale, the average high-temperature increases, from a moderate 59°F (15°C) in April, to an agreeable 69.6°F (20.9°C). Weather in May »

The first month of the summer, June, is a warm month in Annandale, New Jersey, with average temperature varying between 58.5°F (14.7°C) and 77.5°F (25.3°C). In Annandale, the average high-temperature slightly increases, from a pleasant 69.6°F (20.9°C) in May, to a warm 77.5°F (25.3°C). Weather in June »

July, the same as June, is a moderately hot summer month in Annandale, New Jersey, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 83.8°F (28.8°C). The warmest month is July, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 64°F (17.8°C). The average heat index in July is calculated to a hot 92.5°F (33.6°C). Weather in July »

August, the last month of the summer, in Annandale, is also a moderately hot month, with average temperature fluctuating between 62.4°F (16.9°C) and 81.9°F (27.7°C). In Annandale, the average high-temperature in August is almost the same as in July - a still warm 81.9°F (27.7°C). Weather in August »

September, the first month of the autumn, in Annandale, is also a moderately hot month, with average temperature varying between 56.1°F (13.4°C) and 74.7°F (23.7°C). In Annandale, the average high-temperature in September marginally drops, from a warm 81.9°F (27.7°C) in August, to a still moderately hot 74.7°F (23.7°C). Weather in September »

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

November, the last month of the autumn, in Annandale, is also a fresh month, with average temperature varying between 50.4°F (10.2°C) and 35.8°F (2.1°C). In Annandale, the average high-temperature in November drops, from an enjoyable 62.2°F (16.8°C) in October, to a fresh 50.4°F (10.2°C). Weather in November »

The first month of the winter, December, is also a wintry month in Annandale, New Jersey, with average temperature fluctuating between 29.3°F (-1.5°C) and 41°F (5°C). In Annandale, the average high-temperature drops, from a cool 50.4°F (10.2°C) in November, to a wintry 41°F (5°C). Weather in December »

What is the coldest month in Annandale?

With an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.3°F (-5.4°C), January is the coldest month.

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 are January through May, October through December.

How much does it snow in Annandale?

In Annandale, New Jersey, during the entire year, snow falls for 27.8 days, and aggregates up to 15.35" (390mm) of snow.

When is the lowest UV index in Annandale?

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 Annandale?

Months with the highest humidity are February, October and December, with an average relative humidity of 80%.

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.

When does it snow the most in Annandale?

The month with the most snowfall is March when snow falls for 5.6 days and typically aggregates up to 4.76" (121mm) of snow.

What is the least humid month in Annandale?

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

When it does not snow in Annandale?

In Annandale snow does not fall in June through September.

When are the longest days in Annandale?

The month with the longest days is June, with an average of 15.1h of daylight.

When is 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 warmest month in Annandale?

The warmest month in Annandale, New Jersey, is July, with an average high-temperature of 83.8°F (28.8°C) and an average low-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 is September when the rain falls for 12.3 days and typically collects 1.89" (48mm) of precipitation.

What is the wettest month in Annandale?

December is the month with the most rainfall. Rain falls for 12.3 days and accumulates 3.35" (85mm) of precipitation.

What is the month with the shortest days in Annandale?

December has the shortest days of the year, with an average of 9.3h of daylight.
Average temperature - Annandale, NJ
Average pressure - Annandale, NJ

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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).

Average humidity - 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").

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).

Average snowfall - Annandale, NJ
Average snowfall days - Annandale, NJ

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

Average daylight / Average sunshine - Annandale, 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: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days - Annandale, NJ
Average UV index - Annandale, NJ
Average visibility - Annandale, NJ

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