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

Monthly weather forecast and climate
Rumson, NJ

January, the same as December, is another cold winter month in Rumson, New Jersey, with average temperature varying between 28.8°F (-1.8°C) and 37.9°F (3.3°C). The coldest month is January, with an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 28.8°F (-1.8°C). Weather in January »

The last month of the winter, February, is another cold month in Rumson, New Jersey, with average temperature ranging between max 40.5°F (4.7°C) and min 30.4°F (-0.9°C). In Rumson, the average high-temperature is essentially the same as in January - a still wintry 40.5°F (4.7°C). Weather in February »

The first month of the spring, March, is a frosty month in Rumson, New Jersey, with average temperature varying between 46°F (7.8°C) and 36.3°F (2.4°C). In March, the average high-temperature marginally rises, from a wintry 40.5°F (4.7°C) in February, to a frosty 46°F (7.8°C). Weather in March »

April in Rumson, New Jersey, is a mild spring month, with average temperature ranging between min 45.1°F (7.3°C) and max 55.6°F (13.1°C). In Rumson, New Jersey, the average high-temperature in April increases, from a chilly 46°F (7.8°C) in March, to a moderate 55.6°F (13.1°C). Weather in April »

May, the last month of the spring, in Rumson, is a comfortable month, with average temperature varying between 64.9°F (18.3°C) and 54.9°F (12.7°C). In Rumson, New Jersey, the average high-temperature increases, from a mild 55.6°F (13.1°C) in April, to a comfortable 64.9°F (18.3°C). Weather in May »

June, the first month of the summer, in Rumson, is a warm month, with average temperature ranging between min 63.9°F (17.7°C) and max 73.6°F (23.1°C). In Rumson, the average high-temperature slightly increases, from a comfortable 64.9°F (18.3°C) in May, to a moderately hot 73.6°F (23.1°C). Weather in June »

July, like June, in Rumson, New Jersey, is a moderately hot summer month, with average temperature varying between 80.2°F (26.8°C) and 71.2°F (21.8°C). July is the warmest month, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 71.2°F (21.8°C). Weather in July »

August, the last month of the summer, in Rumson, is also a moderately hot month, with average temperature varying between 70.7°F (21.5°C) and 79.5°F (26.4°C). In August, the average high-temperature is almost the same as in July - a still warm 79.5°F (26.4°C). Weather in August »

September, the first month of the autumn, in Rumson, is also a moderately hot month, with average temperature ranging between min 64.6°F (18.1°C) and max 73.8°F (23.2°C). In September, the average high-temperature slightly decreases, from 79.5°F (26.4°C) in August, to a still warm 73.8°F (23.2°C). Weather in September »

October, like September, in Rumson, New Jersey, is another enjoyable autumn month, with average temperature ranging between min 54.1°F (12.3°C) and max 63.3°F (17.4°C). In October, the average high-temperature drops, from a warm 73.8°F (23.2°C) in September, to an enjoyable 63.3°F (17.4°C). Weather in October »

The last month of the autumn, November, is also a fresh month in Rumson, New Jersey, with average temperature fluctuating between 43.3°F (6.3°C) and 52.3°F (11.3°C). In November, the average high-temperature decreases, from an enjoyable 63.3°F (17.4°C) in October, to a fresh 52.3°F (11.3°C). Weather in November »

The first month of the winter, December, is also a frosty month in Rumson, New Jersey, with average temperature ranging between min 36°F (2.2°C) and max 44.2°F (6.8°C). In December, the average high-temperature slightly decreases, from a fresh 52.3°F (11.3°C) in November, to a chilly 44.2°F (6.8°C). Weather in December »

What is the coldest month in Rumson?

January is the coldest month, with an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 28.8°F (-1.8°C).

How much does it rain in Rumson?

Throughout the year, in Rumson, there are 125.1 rainfall days, and 12.64" (321mm) of precipitation is accumulated.

What is the driest month in Rumson?

January is the month with the least rainfall. Rain falls for 6.5 days and accumulates 0.63" (16mm) of precipitation.

When does it snow in Rumson?

Months with snowfall are January through March, October and December.

How many days does it snow in Rumson?

Throughout the year, in Rumson, there are 14.2 snowfall days, and 1.69" (43mm) of snow is accumulated.

When is the lowest UV index in Rumson?

Months with the lowest UV index in Rumson are January, February, November and December, with an average maximum UV index of 2.

What is the month with the coldest ocean in Rumson?

The month with the coldest seawater is February, with an average ocean temperature of 40.1°F (4.5°C).

What is the month with the least sunshine in Rumson?

February has the least sunshine of the year in Rumson, with an average of 4.9h of sunshine.

When it does not snow in Rumson?

In Rumson, New Jersey, snow does not fall in April through September and November.

What is the most humid month in Rumson?

Months with the highest humidity in Rumson are May and June, with an average relative humidity of 79%.

When are the longest days in Rumson?

June has the longest days of the year, with an average of 15h of daylight.

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

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

What is the warmest month in Rumson?

The warmest month is July, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 71.2°F (21.8°C).

What is the rainiest month in Rumson?

The month with the most rainfall in Rumson is July when the rain falls for 15.1 days and typically aggregates up to 1.61" (41mm) of precipitation.

What month has the most sunshine in Rumson?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

When is the ocean warmest in Rumson?

With an average ocean temperature of 74.7°F (23.7°C), August is the month with the warmest seawater in Rumson, New Jersey.

What is the least humid month in Rumson?

The least humid month is November, with an average relative humidity of 73%.

What is the snowiest month in Rumson?

December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.47" (12mm) of snow.

What is the month with the shortest days in Rumson?

December has the shortest days of the year in Rumson, with an average of 9.3h of daylight.
Average temperature - Rumson, NJ
Average rainfall - Rumson, NJ

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the lowest rainfall) is January (0.63").

Average rainfall days - Rumson, NJ

The month with the highest number of rainy days is July (15.1 days).
The month with the lowest number of rainy days is January (6.5 days).

Average snowfall - Rumson, NJ

The month with the highest snowfall is December (0.47").
Months with the lowest snowfall are April, May, June, July, August, September and November (0").

Average snowfall days - Rumson, NJ

The month with the highest number of snowfall days is January (3.9 days).
Months with the lowest number of snowfall days are April, May, June, July, August and September (0 days).

Average sea temperature - Rumson, NJ

The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).

Average daylight / Average sunshine - Rumson, NJ
Average UV index - Rumson, NJ