Rocky Hill
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Rocky Hill, NJ

January, like December, in Rocky Hill, New Jersey, is a wintry winter month, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 36.9°F (2.7°C). The coldest month is January, with an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 24.3°F (-4.3°C). Weather in January »

The last month of the winter, February, is also a wintry month in Rocky Hill, New Jersey, with average temperature ranging between max 39.9°F (4.4°C) and min 26.1°F (-3.3°C). In Rocky Hill, the average high-temperature is almost the same as in January - a still wintry 39.9°F (4.4°C). Weather in February »

The first month of the spring, March, is a frosty month in Rocky Hill, New Jersey, with temperature in the range of an average high of 48.6°F (9.2°C) and an average low of 33.3°F (0.7°C). In March, the average high-temperature marginally rises, from a cold 39.9°F (4.4°C) in February, to a chilly 48.6°F (9.2°C). Weather in March »

April in Rocky Hill, New Jersey, is a mild spring month, with average temperature fluctuating between 43.3°F (6.3°C) and 60.4°F (15.8°C). In April, the average high-temperature increases, from a frosty 48.6°F (9.2°C) in March, to a mild 60.4°F (15.8°C). Weather in April »

The last month of the spring, May, is a pleasant month in Rocky Hill, New Jersey, with average temperature ranging between min 53.2°F (11.8°C) and max 70.5°F (21.4°C). In May, the average high-temperature increases, from a moderate 60.4°F (15.8°C) in April, to an agreeable 70.5°F (21.4°C). Weather in May »

June, the first month of the summer, in Rocky Hill, is a warm month, with average temperature varying between 78.4°F (25.8°C) and 61°F (16.1°C). In June, the average high-temperature slightly increases, from an agreeable 70.5°F (21.4°C) in May, to a moderately hot 78.4°F (25.8°C). Weather in June »

July, like June, in Rocky Hill, New Jersey, is a moderately hot summer month, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 66.9°F (19.4°C). With an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 66.9°F (19.4°C), July is the warmest month. In July, the average heat index is calculated to a hot 93.9°F (34.4°C). Weather in July »

August, the last month of the summer, in Rocky Hill, is another warm month, with average temperature ranging between min 65.8°F (18.8°C) and max 82.9°F (28.3°C). In August, the average high-temperature is relatively the same as in July - a still warm 82.9°F (28.3°C). Weather in August »

The first month of the autumn, September, is still a warm month in Rocky Hill, New Jersey, with average temperature fluctuating between 59°F (15°C) and 75.7°F (24.3°C). In September, the average high-temperature marginally drops, from a warm 82.9°F (28.3°C) in August, to a still moderately hot 75.7°F (24.3°C). Weather in September »

October, like September, in Rocky Hill, New Jersey, is another enjoyable autumn month, with average temperature ranging between max 63.9°F (17.7°C) and min 49.1°F (9.5°C). In Rocky Hill, the average high-temperature decreases, from a moderately hot 75.7°F (24.3°C) in September, to a comfortable 63.9°F (17.7°C). Weather in October »

The last month of the autumn, November, is another cool month in Rocky Hill, New Jersey, with average temperature ranging between min 37.8°F (3.2°C) and max 51.8°F (11°C). In Rocky Hill, New Jersey, the average high-temperature in November decreases, from an enjoyable 63.9°F (17.7°C) in October, to a fresh 51.8°F (11°C). Weather in November »

The first month of the winter, December, is also a frosty month in Rocky Hill, New Jersey, with average temperature ranging between min 31.1°F (-0.5°C) and max 43°F (6.1°C). In December, the average high-temperature marginally drops, from a fresh 51.8°F (11°C) in November, to a chilly 43°F (6.1°C). Weather in December »

What is the coldest month in Rocky Hill?

With an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 24.3°F (-4.3°C), January is the coldest month.

How much does it rain in Rocky Hill?

Throughout the year, there are 119.3 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

When does it snow in Rocky Hill?

Months with snowfall are January through May, November and December.

How many days does it snow in Rocky Hill?

Throughout the year, there are 16.4 snowfall days, and 4.41" (112mm) of snow is accumulated.

When is the lowest UV index in Rocky Hill?

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

What is the month with the least sunshine in Rocky Hill?

With an average of 4.8h of sunshine, February has the least sunshine of the year.

What is the snowiest month in Rocky Hill?

The month with the most snowfall in Rocky Hill is March when snow falls for 3.7 days and typically aggregates up to 1.42" (36mm) of snow.

What is the least humid month in Rocky Hill?

April is the least humid month in Rocky Hill, with an average relative humidity of 73%.

When it does not snow in Rocky Hill?

In Rocky Hill, New Jersey, snow does not fall in June through October.

When are the longest days in Rocky Hill?

The month with the longest days is June, with an average of 15h of daylight.

When is the highest UV index in Rocky Hill?

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

What is the warmest month in Rocky Hill?

With an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 66.9°F (19.4°C), July is the warmest month in Rocky Hill.

What is the rainiest month in Rocky Hill?

July is the month with the most rainfall in Rocky Hill. Rain falls for 13.9 days and accumulates 1.69" (43mm) of precipitation.

What month has the most sunshine in Rocky Hill?

July has the most sunshine of the year in Rocky Hill, with an average of 10.5h of sunshine.

What is the driest month in Rocky Hill?

The month with the least rainfall is September when the rain falls for 10 days and typically collects 0.67" (17mm) of precipitation.

What is the most humid month in Rocky Hill?

With an average relative humidity of 79%, October is the most humid month.

What is the month with the shortest days in Rocky Hill?

The month with the shortest days in Rocky Hill is December, with an average of 9.3h of daylight.
Average rainfall - Rocky Hill, NJ
Average rainfall days - Rocky Hill, NJ

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).

Average snowfall - Rocky Hill, NJ
Average snowfall days - Rocky Hill, NJ

The month with the highest number of snowfall days is January (4.6 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight / Average sunshine - Rocky Hill, NJ

The month with the longest days is June (Average daylight: 15h).
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: 4.8h).

Average UV index - Rocky Hill, NJ