Monthly weather forecast and climate
Somerville, NJ

Weather in January

January, like December, in Somerville, New Jersey, is a wintry winter month, with average temperature varying between 23.2°F (-4.9°C) and 35.6°F (2°C). The coldest month is January, with an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.2°F (-4.9°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Somerville, New Jersey, with average temperature fluctuating between 24.8°F (-4°C) and 39.2°F (4°C). In Somerville, the average high-temperature is practically the same as in January - a still cold 39.2°F (4°C). Weather in February »

Weather in March

March, the first month of the spring, in Somerville, is a frosty month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 47.7°F (8.7°C). In Somerville, the average high-temperature in March marginally rises, from a wintry 39.2°F (4°C) in February, to a frosty 47.7°F (8.7°C). Weather in March »

Weather in April

April in Somerville, New Jersey, is a mild spring month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 59.5°F (15.3°C). In April, the average high-temperature increases, from a chilly 47.7°F (8.7°C) in March, to a moderate 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Somerville, is an agreeable month, with average temperature fluctuating between 70.2°F (21.2°C) and 52.2°F (11.2°C). In Somerville, New Jersey, the average high-temperature in May increases, from a mild 59.5°F (15.3°C) in April, to an agreeable 70.2°F (21.2°C). Weather in May »

Weather in June

June, the first month of the summer, in Somerville, is a moderately hot month, with average temperature varying between 59.7°F (15.4°C) and 78.3°F (25.7°C). In Somerville, the average high-temperature in June slightly increases, from an agreeable 70.2°F (21.2°C) in May, to a warm 78.3°F (25.7°C). Weather in June »

Weather in July

July, like June, in Somerville, New Jersey, is another warm summer month, with average temperature ranging between min 66°F (18.9°C) and max 84.2°F (29°C). With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 66°F (18.9°C), July is the warmest month. In July, the average heat index is calculated to a hot 92.7°F (33.7°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Somerville, New Jersey, with average temperature fluctuating between 64.6°F (18.1°C) and 82.4°F (28°C). In Somerville, the average high-temperature is essentially the same as in July - a still moderately hot 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Somerville, New Jersey, with average temperature varying between 75.2°F (24°C) and 58.1°F (14.5°C). In September, the average high-temperature slightly decreases, from a warm 82.4°F (28°C) in August, to a still moderately hot 75.2°F (24°C). Weather in September »

Weather in October

October, like September, in Somerville, New Jersey, is another enjoyable autumn month, with average temperature varying between 63.5°F (17.5°C) and 48°F (8.9°C). In October, the average high-temperature drops, from a moderately hot 75.2°F (24°C) in September, to an enjoyable 63.5°F (17.5°C). Weather in October »

Weather in November

November, the last month of the autumn, in Somerville, is another cool month, with average temperature varying between 50.9°F (10.5°C) and 37.2°F (2.9°C). In November, the average high-temperature decreases, from a comfortable 63.5°F (17.5°C) in October, to a fresh 50.9°F (10.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Somerville, New Jersey, with average temperature varying between 42.3°F (5.7°C) and 30.6°F (-0.8°C). In Somerville, New Jersey, the average high-temperature slightly decreases, from a fresh 50.9°F (10.5°C) in November, to a wintry 42.3°F (5.7°C). Weather in December »
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FAQ

What is the coldest month in Somerville?

With an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.2°F (-4.9°C), January is the coldest month.

How much does it rain in Somerville?

In Somerville, New Jersey, during the entire year, the rain falls for 157.9 days and collects up to 28.19" (716mm) of precipitation.

When does it snow in Somerville?

Months with snowfall in Somerville are January through May, October through December.

How much does it snow in Somerville?

In Somerville, New Jersey, during the entire year, snow falls for 23.8 days, and aggregates up to 9.53" (242mm) of snow.

What are the months with the lowest UV index in Somerville?

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

What are the most humid months in Somerville?

Months with the highest humidity are February, October and December, with an average relative humidity of 79%.

What is the month with the least sunshine in Somerville?

February has the least sunshine of the year, with an average of 4.6h of sunshine.

When does it snow the most in Somerville?

The month with the most snowfall is March when snow falls for 4.9 days and typically aggregates up to 2.83" (72mm) of snow.

What is the least humid month in Somerville?

With an average relative humidity of 74%, April is the least humid month in Somerville.

When it does not snow in Somerville?

June through September are months without snowfall.

When are the longest days in Somerville?

With an average of 15h of daylight, June has the longest days of the year in Somerville, New Jersey.

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

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

What is the warmest month in Somerville?

With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 66°F (18.9°C), July is the warmest month.

What month has the most sunshine in Somerville?

The month with the most sunshine in Somerville, New Jersey, is July, with an average of 10.4h of sunshine.

What is the driest month in Somerville?

September is the month with the least rainfall. Rain falls for 12.3 days and accumulates 1.54" (39mm) of precipitation.

What is the wettest month in Somerville?

December is the month with the most rainfall in Somerville, New Jersey. Rain falls for 10.9 days and accumulates 2.91" (74mm) of precipitation.

What is the month with the shortest days in Somerville?

The month with the shortest days in Somerville, New Jersey, is December, with an average of 9.3h of daylight.

Average temperature
Somerville, NJ

Average temperature - Somerville, NJ

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure
Somerville, NJ

Average pressure - Somerville, NJ

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed
Somerville, NJ

Average wind speed - Somerville, NJ

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity
Somerville, NJ

Average humidity - Somerville, NJ

Months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).

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Average rainfall
Somerville, NJ

Average rainfall - Somerville, NJ

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days
Somerville, NJ

Average rainfall days - Somerville, NJ

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (9 days).

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Average snowfall
Somerville, NJ

Average snowfall - Somerville, NJ

The month with the highest snowfall is March (2.83").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Somerville, NJ

Average snowfall days - Somerville, NJ

The month with the highest number of snowfall days is January (6.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Somerville, NJ

Average daylight / Average sunshine - Somerville, 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: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days
Somerville, NJ

Average sunshine days - Somerville, NJ

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).

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Average UV index
Somerville, NJ

Average UV index - Somerville, NJ

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Somerville, NJ

Average visibility - Somerville, NJ

Months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
Months with the lowest visibility are May and September (5mi).

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