South Dennis
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
South Dennis, NJ

January, like December, in South Dennis, New Jersey, is a wintry winter month, with average temperature fluctuating between 31.3°F (-0.4°C) and 40.1°F (4.5°C). The coldest month is January, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 31.3°F (-0.4°C). Weather in January »

The last month of the winter, February, is another cold month in South Dennis, New Jersey, with average temperature fluctuating between 32.7°F (0.4°C) and 42.1°F (5.6°C). In South Dennis, the average high-temperature is practically the same as in January - a still wintry 42.1°F (5.6°C). Weather in February »

The first month of the spring, March, is a chilly month in South Dennis, New Jersey, with average temperature ranging between min 38.3°F (3.5°C) and max 47.3°F (8.5°C). In March, the average high-temperature is relatively the same as in February - a chilly 47.3°F (8.5°C). Weather in March »

April is a mild spring month in South Dennis, New Jersey, with average temperature varying between 56.8°F (13.8°C) and 48°F (8.9°C). In South Dennis, the average high-temperature rises, from a frosty 47.3°F (8.5°C) in March, to a moderate 56.8°F (13.8°C). Weather in April »

May, the last month of the spring, in South Dennis, is an enjoyable month, with average temperature fluctuating between 57°F (13.9°C) and 66.2°F (19°C). In South Dennis, the average high-temperature in May increases, from a moderate 56.8°F (13.8°C) in April, to an enjoyable 66.2°F (19°C). Weather in May »

June, the first month of the summer, in South Dennis, is a warm month, with temperature in the range of an average low of 66.2°F (19°C) and an average high of 74.8°F (23.8°C). In June, the average high-temperature marginally rises, from a comfortable 66.2°F (19°C) in May, to a warm 74.8°F (23.8°C). Weather in June »

July, like June, in South Dennis, New Jersey, is another warm summer month, with average temperature varying between 80.8°F (27.1°C) and 72.1°F (22.3°C). With an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 72.1°F (22.3°C), July is the warmest month. The average heat index is appraised at 85.8°F (29.9°C). Weather in July »

August, the last month of the summer, in South Dennis, is another warm month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 71.6°F (22°C). In South Dennis, the average high-temperature is almost the same as in July - a still warm 79.9°F (26.6°C). Weather in August »

September, the first month of the autumn, in South Dennis, is also a moderately hot month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 66.2°F (19°C). In September, the average high-temperature marginally drops, from a warm 79.9°F (26.6°C) in August, to a still moderately hot 73.9°F (23.3°C). Weather in September »

October, like September, in South Dennis, New Jersey, is another comfortable autumn month, with average temperature varying between 56.3°F (13.5°C) and 64.4°F (18°C). In South Dennis, the average high-temperature in October drops, from a moderately hot 73.9°F (23.3°C) in September, to an enjoyable 64.4°F (18°C). Weather in October »

November, the last month of the autumn, in South Dennis, is also a fresh month, with average temperature fluctuating between 54.1°F (12.3°C) and 45.5°F (7.5°C). In South Dennis, the average high-temperature decreases, from a comfortable 64.4°F (18°C) in October, to a cool 54.1°F (12.3°C). Weather in November »

The first month of the winter, December, is still a chilly month in South Dennis, New Jersey, with average temperature varying between 46°F (7.8°C) and 37.9°F (3.3°C). In December, the average high-temperature slightly decreases, from a cool 54.1°F (12.3°C) in November, to a frosty 46°F (7.8°C). Weather in December »

What is the coldest month in South Dennis?

January is the coldest month, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 31.3°F (-0.4°C).

How many days does it rain in South Dennis?

Throughout the year, in South Dennis, New Jersey, there are 130.8 rainfall days, and 13.23" (336mm) of precipitation is accumulated.

What is the driest month in South Dennis?

The month with the least rainfall is January when the rain falls for 7 days and typically collects 0.67" (17mm) of precipitation.

When does it snow in South Dennis?

January through March, November and December are months with snowfall.

How many days does it snow in South Dennis?

Throughout the year, there are 13.2 snowfall days, and 1.85" (47mm) of snow is accumulated.

When does it snow the most in South Dennis?

The month with the most snowfall is January when snow falls for 4.7 days and typically aggregates up to 0.59" (15mm) of snow.

What are the months with the lowest UV index in South Dennis?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in South Dennis, New Jersey.

What is the month with the least sunshine in South Dennis?

The month with the least sunshine in South Dennis is February, with an average of 5h of sunshine.

When it does not snow in South Dennis?

In South Dennis snow does not fall in April through October.

What is the most humid month in South Dennis?

May is the most humid month in South Dennis, New Jersey, with an average relative humidity of 81%.

When are the longest days in South Dennis?

June has the longest days of the year in South Dennis, with an average of 14.9h of daylight.

What are the months with the highest UV index in South Dennis?

Months with the highest UV index in South Dennis, New Jersey, are June through August, with an average maximum UV index of 6.

What is the warmest month in South Dennis?

With an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 72.1°F (22.3°C), July is the warmest month in South Dennis, New Jersey.

What month has the most sunshine in South Dennis?

The month with the most sunshine in South Dennis is July, with an average of 11h of sunshine.

What is the wettest month in South Dennis?

The month with the most rainfall in South Dennis is August when the rain falls for 13.5 days and typically aggregates up to 1.61" (41mm) of precipitation.

What is the least humid month in South Dennis?

November is the least humid month in South Dennis, New Jersey, with an average relative humidity of 73%.

What is the month with the shortest days in South Dennis?

With an average of 9.5h of daylight, December has the shortest days of the year.
Average rainfall - South Dennis, NJ
Average rainfall days - South Dennis, NJ

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7 days).

Average snowfall - South Dennis, NJ

The month with the highest snowfall is January (15mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days - South Dennis, NJ

The month with the highest number of snowfall days is January (4.7 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - South Dennis, NJ

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5h).

Average UV index - South Dennis, NJ