Riverdale
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Riverdale, NJ

January, like December, in Riverdale, New Jersey, is a wintry winter month, with average temperature varying between 35.8°F (2.1°C) and 25°F (-3.9°C). The coldest month is January, with an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 25°F (-3.9°C). Weather in January »

The last month of the winter, February, is also a wintry month in Riverdale, New Jersey, with average temperature varying between 26.8°F (-2.9°C) and 38.8°F (3.8°C). In February, the average high-temperature is relatively the same as in January - a still wintry 38.8°F (3.8°C). Weather in February »

The first month of the spring, March, is a chilly month in Riverdale, New Jersey, with average temperature fluctuating between 46.2°F (7.9°C) and 33.6°F (0.9°C). In March, the average high-temperature slightly increases, from a cold 38.8°F (3.8°C) in February, to a chilly 46.2°F (7.9°C). Weather in March »

April is a mild spring month in Riverdale, New Jersey, with average temperature fluctuating between 43.3°F (6.3°C) and 57.7°F (14.3°C). In April, the average high-temperature rises, from a frosty 46.2°F (7.9°C) in March, to a moderate 57.7°F (14.3°C). Weather in April »

May, the last month of the spring, in Riverdale, is an agreeable month, with average temperature ranging between max 68.7°F (20.4°C) and min 53.2°F (11.8°C). In Riverdale, New Jersey, the average high-temperature rises, from a mild 57.7°F (14.3°C) in April, to a pleasant 68.7°F (20.4°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Riverdale, New Jersey, with average temperature varying between 61.9°F (16.6°C) and 77.2°F (25.1°C). In June, the average high-temperature marginally rises, from a pleasant 68.7°F (20.4°C) in May, to a moderately hot 77.2°F (25.1°C). Weather in June »

July, the same as June, is a moderately hot summer month in Riverdale, New Jersey, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 68.7°F (20.4°C). July is the warmest month, with an average high-temperature of 84.2°F (29°C) and an average low-temperature of 68.7°F (20.4°C). In July, the average heat index is estimated at a hot 90.9°F (32.7°C). Weather in July »

August, the last month of the summer, in Riverdale, is another warm month, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 67.6°F (19.8°C). In August, the average high-temperature is essentially the same as in July - a still warm 82.6°F (28.1°C). Weather in August »

The first month of the autumn, September, is still a warm month in Riverdale, New Jersey, with average temperature fluctuating between 75.2°F (24°C) and 60.8°F (16°C). In Riverdale, the average high-temperature marginally drops, from 82.6°F (28.1°C) in August, to a still moderately hot 75.2°F (24°C). Weather in September »

October, like September, in Riverdale, New Jersey, is another comfortable autumn month, with average temperature fluctuating between 50.7°F (10.4°C) and 63.1°F (17.3°C). In Riverdale, the average high-temperature drops, from a moderately hot 75.2°F (24°C) in September, to an enjoyable 63.1°F (17.3°C). Weather in October »

The last month of the autumn, November, is also a fresh month in Riverdale, New Jersey, with average temperature fluctuating between 39.6°F (4.2°C) and 50.9°F (10.5°C). In November, the average high-temperature decreases, from a comfortable 63.1°F (17.3°C) in October, to a cool 50.9°F (10.5°C). Weather in November »

The first month of the winter, December, is also a wintry month in Riverdale, New Jersey, with average temperature varying between 32.5°F (0.3°C) and 41.9°F (5.5°C). In Riverdale, the average high-temperature decreases, from a cool 50.9°F (10.5°C) in November, to a wintry 41.9°F (5.5°C). Weather in December »

What is the coldest month in Riverdale?

The coldest month is January, with an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 25°F (-3.9°C).

How much does it rain in Riverdale?

In Riverdale, during the entire year, the rain falls for 106.1 days and collects up to 8.31" (211mm) of precipitation.

When does it snow in Riverdale?

January through April and December are months with snowfall in Riverdale.

How many days does it snow in Riverdale?

In Riverdale, New Jersey, during the entire year, snow falls for 12.2 days, and aggregates up to 1.18" (30mm) of snow.

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

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

What are the most humid months in Riverdale?

February and December, with an average relative humidity of 76%, are most humid months.

What is the month with the least sunshine in Riverdale?

February has the least sunshine of the year in Riverdale, New Jersey, with an average of 4.7h of sunshine.

When it does not snow in Riverdale?

In Riverdale snow does not fall in May through November.

When are the longest days in Riverdale?

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

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

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

What is the warmest month in Riverdale?

The warmest month is July, with an average high-temperature of 84.2°F (29°C) and an average low-temperature of 68.7°F (20.4°C).

What is the rainiest month in Riverdale?

The month with the most rainfall is July when the rain falls for 11.3 days and typically aggregates up to 0.98" (25mm) of precipitation.

What month has the most sunshine in Riverdale?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

What is the least humid month in Riverdale?

With an average relative humidity of 69%, August is the least humid month in Riverdale.

What is the driest month in Riverdale?

The month with the least rainfall is September when the rain falls for 8.1 days and typically collects 0.39" (10mm) of precipitation.

What is the snowiest month in Riverdale?

The month with the most snowfall is December when snow falls for 2.5 days and typically aggregates up to 0.35" (9mm) of snow.

What is the month with the shortest days in Riverdale?

With an average of 9.3h of daylight, December has the shortest days of the year.
Average humidity - Riverdale, NJ
Average rainfall - Riverdale, NJ
Average rainfall days - Riverdale, NJ

The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (5.4 days).

Average snowfall - Riverdale, NJ

The month with the highest snowfall is December (9mm).
Months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days - Riverdale, NJ

Months with the highest number of snowfall days are January and February (3.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Riverdale, 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: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average UV index - Riverdale, NJ