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 ranging between min 25°F (-3.9°C) and max 35.8°F (2.1°C). With an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 25°F (-3.9°C), January is the coldest month. 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 Riverdale, the average high-temperature is relatively the same as in January - a still cold 38.8°F (3.8°C). Weather in February »

March, the first month of the spring, in Riverdale, is a frosty month, with average temperature varying between 33.6°F (0.9°C) and 46.2°F (7.9°C). In Riverdale, the average high-temperature marginally rises, 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 57.7°F (14.3°C) and 43.3°F (6.3°C). In April, the average high-temperature increases, from a frosty 46.2°F (7.9°C) in March, to a moderate 57.7°F (14.3°C). Weather in April »

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

June, the first month of the summer, in Riverdale, is a moderately hot month, with average temperature ranging between min 61.9°F (16.6°C) and max 77.2°F (25.1°C). In Riverdale, New Jersey, the average high-temperature slightly increases, from an agreeable 68.7°F (20.4°C) in May, to a moderately hot 77.2°F (25.1°C). Weather in June »

July, like June, in Riverdale, New Jersey, is another warm summer month, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 84.2°F (29°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). The average heat index is calculated to a hot 90.9°F (32.7°C). Weather in July »

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

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

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

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

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

What is the coldest month in Riverdale?

The coldest month in Riverdale, New Jersey, 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?

Throughout the year, in Riverdale, New Jersey, there are 106.1 rainfall days, and 8.31" (211mm) of precipitation is accumulated.

When does it snow in Riverdale?

Months with snowfall are January through April and December.

How much does it snow in Riverdale?

Throughout the year, in Riverdale, New Jersey, there are 12.2 snowfall days, and 1.18" (30mm) of snow is accumulated.

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

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

What are the most humid months in Riverdale?

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

What is the month with the least sunshine in Riverdale?

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

When it does not snow in Riverdale?

May through November are months without snowfall.

When are the longest days in Riverdale?

With an average of 15.1h of daylight, June has the longest days of the year in Riverdale.

What is the month 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?

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).

What is the rainiest month in Riverdale?

July is the month with the most rainfall in Riverdale, New Jersey. Rain falls for 11.3 days and accumulates 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 in Riverdale.

What is the least humid month in Riverdale?

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

What is the driest month in Riverdale?

September is the month with the least rainfall in Riverdale. Rain falls for 8.1 days and accumulates 0.39" (10mm) of precipitation.

When does it snow the most in Riverdale?

December is the month with the most snowfall in Riverdale, New Jersey. Snow falls for 2.5 days and accumulates 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 temperature - Riverdale, NJ
Average humidity - Riverdale, NJ
Average rainfall - Riverdale, NJ

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the lowest rainfall) is September (0.39").

Average rainfall days - Riverdale, NJ

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

Average snowfall - Riverdale, NJ

The month with the highest snowfall is December (0.35").
Months with the lowest snowfall are May, June, July, August, September, October and November (0").

Average snowfall days - Riverdale, NJ

Months with the highest number of snowfall days are January and February (3.3 days).
Months with the lowest number of 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 shortest days is December (Average daylight: 9.3h).

The month with most sunshine is July (Average sunshine: 10.5h).
The month with least sunshine is February (Average sunshine: 4.7h).

Average UV index - Riverdale, NJ